/* ==========================================
   SignalMatrix - المرصد الشامل
   Comprehensive Arabic RTL Presentation
   ========================================== */

/* ==========================================
   CSS Variables - Theme System
   ========================================== */
:root {
    /* Dark Theme (Default) */
    --bg-primary: #0A0E1A;
    --bg-secondary: #141B2D;
    --bg-tertiary: #1E293B;
    --bg-card: rgba(20, 27, 45, 0.8);
    --bg-card-hover: rgba(30, 41, 59, 0.9);
    --bg-glass: rgba(20, 27, 45, 0.6);
    
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    --accent-cyan: #00F0FF;
    --accent-cyan-dim: rgba(0, 240, 255, 0.3);
    --accent-cyan-glow: rgba(0, 240, 255, 0.5);
    --accent-gold: #FFD700;
    --accent-gold-dim: rgba(255, 215, 0, 0.3);
    --accent-violet: #8B5CF6;
    --accent-violet-dim: rgba(139, 92, 246, 0.3);
    --accent-green: #10B981;
    --accent-red: #EF4444;
    
    --border-color: rgba(148, 163, 184, 0.2);
    --border-glow: rgba(0, 240, 255, 0.4);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px var(--accent-cyan-dim);
    
    /* Typography */
    --font-display: 'Readex Pro', sans-serif;
    --font-body: 'IBM Plex Sans Arabic', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --nav-height: 56px;
    --container-padding: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.6s ease;
    --transition-slide: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F1F5F9;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-card-hover: rgba(241, 245, 249, 1);
    --bg-glass: rgba(255, 255, 255, 0.8);
    
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    
    --accent-cyan: #0891B2;
    --accent-cyan-dim: rgba(8, 145, 178, 0.2);
    --accent-cyan-glow: rgba(8, 145, 178, 0.3);
    --accent-gold: #F59E0B;
    --accent-gold-dim: rgba(245, 158, 11, 0.2);
    --accent-violet: #6366F1;
    --accent-violet-dim: rgba(99, 102, 241, 0.2);
    --accent-green: #059669;
    --accent-red: #DC2626;
    
    --border-color: rgba(148, 163, 184, 0.3);
    --border-glow: rgba(8, 145, 178, 0.3);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 30px var(--accent-cyan-dim);
}

/* ==========================================
   Base Styles
   ========================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
    min-height: 100vh;
    direction: rtl;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ==========================================
   Particles Background
   ========================================== */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ==========================================
   Theme Toggle (in navbar)
   ========================================== */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    border-color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
}

.theme-toggle i {
    font-size: 1rem;
    transition: all var(--transition-normal);
}

#themeIconLight {
    color: var(--accent-gold);
    display: none;
}

#themeIconDark {
    color: var(--accent-cyan);
    display: block;
}

[data-theme="light"] #themeIconLight {
    display: block;
}

[data-theme="light"] #themeIconDark {
    display: none;
}

/* ==========================================
   Navigation Header
   ========================================== */
.nav-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    height: var(--nav-height);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: white;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slide-counter {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.slide-counter .separator {
    color: var(--text-muted);
}

#currentSlide {
    color: var(--accent-cyan);
    font-weight: 600;
}

.nav-buttons {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
}

.nav-btn:hover:not(:disabled) {
    border-color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

.nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ==========================================
   Progress Bar
   ========================================== */
.progress-bar {
    position: fixed;
    bottom: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: var(--bg-tertiary);
    z-index: 1000;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
    width: 11.11%;
    transition: width var(--transition-slide);
    box-shadow: 0 0 20px var(--accent-cyan-glow);
}

/* ==========================================
   Slide Indicators
   ========================================== */
.slide-indicators {
    position: fixed;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.indicator:hover {
    background: var(--accent-cyan-dim);
    transform: scale(1.2);
}

.indicator.active {
    background: var(--accent-cyan);
    box-shadow: 0 0 15px var(--accent-cyan-glow);
    transform: scale(1.3);
}

.indicator::before {
    content: attr(data-label);
    position: absolute;
    right: calc(100% + 1rem);
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
    background: var(--bg-card);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.indicator:hover::before {
    opacity: 1;
}

/* ==========================================
   Main Presentation
   ========================================== */
.presentation {
    position: fixed;
    top: var(--nav-height);
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
}

.slides-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-100px);
    transition: all var(--transition-slide);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem var(--container-padding);
    overflow: hidden;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.slide.prev {
    transform: translateX(100px);
}

.slide-content {
    max-width: 1200px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

/* ==========================================
   Slide Header
   ========================================== */
.slide-header {
    text-align: center;
    margin-bottom: 0.5rem;
}

.slide-number {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent-cyan);
    display: block;
    margin-bottom: 0.25rem;
}

.slide-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.slide-title .highlight {
    color: var(--accent-cyan);
}

.slide-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
}

/* ==========================================
   Slide 1: Opening
   ========================================== */
.slide-opening {
    text-align: center;
    gap: 3rem;
}

.observatory-visual {
    position: relative;
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.observatory-center {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    z-index: 10;
    box-shadow: var(--shadow-glow), 0 0 60px var(--accent-cyan-dim);
}

.observatory-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
}

.ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 2px solid var(--accent-cyan-dim);
}

.ring-1 {
    width: 140px;
    height: 140px;
    animation: pulse-ring 3s ease-out infinite;
}

.ring-2 {
    width: 200px;
    height: 200px;
    animation: pulse-ring 3s ease-out infinite 1s;
}

.ring-3 {
    width: 260px;
    height: 260px;
    animation: pulse-ring 3s ease-out infinite 2s;
}

@keyframes pulse-ring {
    0% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(0.8);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

.observatory-beam {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), transparent);
    transform-origin: left center;
    animation: rotate-beam 4s linear infinite;
    z-index: 5;
    box-shadow: 0 0 20px var(--accent-cyan-glow);
}

@keyframes rotate-beam {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.opening-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.main-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 0 0 40px var(--accent-cyan-dim);
}

.tagline {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.title-divider {
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
    border-radius: 2px;
    margin: 1rem 0;
}

.pillars {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.pillar {
    color: var(--accent-cyan);
    font-weight: 600;
}

.pillar-dot {
    color: var(--text-muted);
}

.cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    color: white;
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 0 40px var(--accent-cyan-glow);
}

.cta-primary.large {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

/* ==========================================
   Slide 2: Challenge - Stats Grid
   ========================================== */
.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 1000px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--accent-cyan-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-cyan);
}

.stat-value {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-gold);
    line-height: 1;
}

.stat-unit {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-top: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.challenge-message {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--accent-red);
    border-radius: 12px;
    color: var(--accent-red);
    font-size: 1.125rem;
    margin-top: 1rem;
}

.challenge-message i {
    font-size: 1.5rem;
}

/* ==========================================
   Slide 3: Gap - Silos Visualization
   ========================================== */
.gap-visualization {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.silos-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.silo {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    min-width: 180px;
    transition: all var(--transition-normal);
}

.silo-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--text-secondary);
}

.silo-tv .silo-icon { color: var(--accent-cyan); }
.silo-social .silo-icon { color: var(--accent-violet); }
.silo-web .silo-icon { color: var(--accent-gold); }

.silo-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.silo-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--accent-red);
    padding: 0.5rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 20px;
}

.silo-gap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-red);
}

.gap-line {
    width: 2px;
    height: 20px;
    background: var(--accent-red);
    opacity: 0.5;
}

.silo-gap i {
    font-size: 1.5rem;
}

.gap-consequences {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.consequence {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
}

.consequence i {
    color: var(--accent-red);
    font-size: 1.25rem;
}

/* ==========================================
   Slide 4: Blind Spot - Compact & Animated
   ========================================== */
.blindspot-layout {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 2rem;
    width: 100%;
    max-width: 1000px;
    margin-top: 1rem;
}

/* Side panels */
.blindspot-side {
    flex: 1;
    max-width: 320px;
    background: var(--bg-card);
    border-radius: 20px;
    padding: 1.75rem;
    position: relative;
    overflow: hidden;
    border: 2px solid var(--border-color);
    transition: all 0.5s ease;
}

.blindspot-side.web-only {
    border-color: rgba(239, 68, 68, 0.4);
}

.blindspot-side.with-broadcast {
    border-color: rgba(0, 240, 255, 0.4);
}

.blindspot-side.with-broadcast:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 40px var(--accent-cyan-dim), 0 0 80px rgba(0, 240, 255, 0.1);
}

.side-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.web-only .side-label {
    color: var(--accent-red);
}

.with-broadcast .side-label {
    color: var(--accent-cyan);
}

.side-label i {
    font-size: 1.3rem;
}

/* Data visualization: Chaos */
.data-chaos {
    height: 80px;
    position: relative;
    margin-bottom: 1.5rem;
    background: rgba(239, 68, 68, 0.05);
    border-radius: 12px;
    overflow: hidden;
}

.chaos-dot {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent-red);
    border-radius: 50%;
    opacity: 0.7;
    animation: chaos-float 3s ease-in-out infinite;
}

.chaos-dot:nth-child(1) { top: 15%; left: 10%; animation-delay: 0s; }
.chaos-dot:nth-child(2) { top: 60%; left: 25%; animation-delay: 0.3s; }
.chaos-dot:nth-child(3) { top: 30%; left: 45%; animation-delay: 0.6s; }
.chaos-dot:nth-child(4) { top: 70%; left: 60%; animation-delay: 0.9s; }
.chaos-dot:nth-child(5) { top: 20%; left: 75%; animation-delay: 1.2s; }
.chaos-dot:nth-child(6) { top: 50%; left: 85%; animation-delay: 1.5s; }
.chaos-dot:nth-child(7) { top: 80%; left: 40%; animation-delay: 1.8s; }

.chaos-gap {
    position: absolute;
    width: 30px;
    height: 30px;
    border: 2px dashed var(--accent-red);
    border-radius: 50%;
    opacity: 0.4;
    animation: gap-pulse 2s ease-in-out infinite;
}

.chaos-gap:nth-child(8) { top: 25%; left: 55%; animation-delay: 0s; }
.chaos-gap:nth-child(9) { top: 55%; left: 15%; animation-delay: 1s; }

@keyframes chaos-float {
    0%, 100% { 
        transform: translate(0, 0) scale(1);
        opacity: 0.5;
    }
    25% { 
        transform: translate(8px, -12px) scale(0.8);
        opacity: 0.8;
    }
    50% { 
        transform: translate(-5px, 8px) scale(1.1);
        opacity: 0.4;
    }
    75% { 
        transform: translate(10px, 5px) scale(0.9);
        opacity: 0.9;
    }
}

@keyframes gap-pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.3;
    }
    50% { 
        transform: scale(1.3);
        opacity: 0.6;
    }
}

/* Data visualization: Stream */
.data-stream {
    height: 80px;
    position: relative;
    margin-bottom: 1.5rem;
    background: rgba(0, 240, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
}

.stream-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--accent-cyan) 20%, 
        var(--accent-cyan) 80%, 
        transparent 100%);
    transform: translateY(-50%);
    opacity: 0.6;
}

.stream-particle {
    position: absolute;
    top: 50%;
    width: 14px;
    height: 14px;
    background: var(--accent-cyan);
    border-radius: 50%;
    transform: translateY(-50%);
    animation: stream-flow 1.8s linear infinite;
    box-shadow: 0 0 20px var(--accent-cyan), 0 0 40px var(--accent-cyan-dim);
}

.stream-particle:nth-child(2) { animation-delay: 0s; }
.stream-particle:nth-child(3) { animation-delay: 0.6s; }
.stream-particle:nth-child(4) { animation-delay: 1.2s; }

.stream-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent 0%,
        rgba(0, 240, 255, 0.1) 50%,
        transparent 100%);
    animation: glow-sweep 2s ease-in-out infinite;
}

@keyframes stream-flow {
    0% { 
        right: -20px;
        opacity: 0;
    }
    10% { 
        opacity: 1;
    }
    90% { 
        opacity: 1;
    }
    100% { 
        right: calc(100% + 20px);
        opacity: 0;
    }
}

@keyframes glow-sweep {
    0%, 100% { 
        opacity: 0.3;
        transform: translateX(-100%);
    }
    50% { 
        opacity: 0.8;
        transform: translateX(100%);
    }
}

/* Side points */
.side-points {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.side-points li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.9rem;
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.side-points.negative li {
    background: rgba(239, 68, 68, 0.1);
    color: var(--text-secondary);
}

.side-points.negative li i {
    color: var(--accent-red);
    font-size: 0.85rem;
    width: 20px;
    text-align: center;
}

.side-points.positive li {
    background: rgba(0, 240, 255, 0.1);
    color: var(--text-primary);
}

.side-points.positive li i {
    color: var(--accent-cyan);
    font-size: 0.85rem;
    width: 20px;
    text-align: center;
}

.side-points li:hover {
    transform: translateX(-5px);
}

/* Center transformation */
.blindspot-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 0 0.5rem;
}

.transform-arrow {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arrow-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    z-index: 2;
    animation: icon-pulse 2s ease-in-out infinite;
    box-shadow: 0 0 30px var(--accent-cyan-dim);
}

.arrow-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--accent-cyan);
    animation: arrow-ring 2s ease-out infinite;
}

.arrow-line {
    position: absolute;
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-cyan));
    opacity: 0.4;
}

@keyframes icon-pulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 30px var(--accent-cyan-dim);
    }
    50% { 
        transform: scale(1.1);
        box-shadow: 0 0 50px var(--accent-cyan-glow), 0 0 80px var(--accent-cyan-dim);
    }
}

@keyframes arrow-ring {
    0% { 
        transform: scale(0.8);
        opacity: 1;
    }
    100% { 
        transform: scale(2);
        opacity: 0;
    }
}

.transform-label {
    font-size: 0.85rem;
    color: var(--accent-cyan);
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
}

/* Bottom tagline */
.blindspot-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-gold-dim), rgba(255, 215, 0, 0.05));
    border: 1px solid var(--accent-gold);
    border-radius: 30px;
    margin-top: 1.5rem;
    animation: tagline-glow 3s ease-in-out infinite;
}

.blindspot-tagline i {
    color: var(--accent-gold);
    font-size: 1.25rem;
    animation: bulb-flicker 3s ease-in-out infinite;
}

.blindspot-tagline span {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

@keyframes tagline-glow {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(255, 215, 0, 0.1);
    }
    50% { 
        box-shadow: 0 0 40px rgba(255, 215, 0, 0.3);
    }
}

@keyframes bulb-flicker {
    0%, 100% { 
        opacity: 0.7;
        transform: scale(1);
    }
    50% { 
        opacity: 1;
        transform: scale(1.1);
    }
}

/* Responsive */
@media (max-width: 900px) {
    .blindspot-layout {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .blindspot-side {
        max-width: 100%;
        width: 100%;
    }
    
    .blindspot-center {
        flex-direction: row;
        padding: 0.5rem 0;
    }
    
    .arrow-line {
        width: 3px;
        height: 60px;
    }
    
    .transform-arrow {
        width: 60px;
        height: 60px;
    }
    
    .arrow-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .blindspot-side {
        padding: 1.25rem;
    }
    
    .data-chaos,
    .data-stream {
        height: 60px;
    }
    
    .side-points li {
        font-size: 0.85rem;
        padding: 0.5rem 0.75rem;
    }
    
    .blindspot-tagline {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 1rem 1.5rem;
    }
    
    .blindspot-tagline span {
        font-size: 1rem;
    }
}

/* ==========================================
   Slide 5: Solution - Unified Sphere
   ========================================== */
.solution-visualization {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.unified-sphere {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sphere-core {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    z-index: 10;
    box-shadow: var(--shadow-glow);
    animation: core-pulse 2s ease-in-out infinite;
}

@keyframes core-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.orbit-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px dashed var(--accent-cyan-dim);
    border-radius: 50%;
    animation: orbit-rotate 20s linear infinite;
}

@keyframes orbit-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.data-streams {
    position: absolute;
    width: 100%;
    height: 100%;
}

.stream {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border-radius: 30px;
    font-size: 0.875rem;
    white-space: nowrap;
    border: 1px solid var(--border-color);
    animation: float 3s ease-in-out infinite;
}

.stream-tv {
    top: 0;
    right: 50%;
    transform: translateX(50%);
    color: var(--accent-cyan);
    animation-delay: 0s;
}

.stream-web {
    bottom: 20%;
    right: -10%;
    color: var(--accent-gold);
    animation-delay: 1s;
}

.stream-social {
    bottom: 20%;
    left: -10%;
    color: var(--accent-violet);
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.stream i {
    font-size: 1rem;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-normal);
}

.feature-item:hover {
    border-color: var(--accent-cyan);
    transform: translateX(-5px);
}

.feature-icon {
    color: var(--accent-green);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-text strong {
    display: block;
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.feature-text span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==========================================
   Slide 5: How It Works - Workflow
   ========================================== */
.workflow-container {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    width: 100%;
}

.workflow-step {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    flex: 1;
    min-width: 200px;
    max-width: 240px;
    transition: all var(--transition-normal);
    position: relative;
}

.workflow-step:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.step-number {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    box-shadow: var(--shadow-md);
}

.step-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--accent-cyan-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-cyan);
}

.step-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.step-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.step-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.step-details span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 0.25rem 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.step-details i {
    color: var(--accent-cyan);
    font-size: 0.75rem;
}

.workflow-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-cyan);
    padding-top: 3rem;
}

/* ==========================================
   Slide 6: Multilingual
   ========================================== */
.multilingual-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.world-map-container {
    width: 100%;
    max-width: 800px;
    padding: 0.5rem;
}

.language-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
}

.lang-bubble {
    padding: 0.5rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    cursor: default;
}

.lang-bubble:hover {
    transform: scale(1.05);
    border-color: var(--accent-cyan);
}

.lang-bubble.active {
    background: var(--accent-cyan-dim);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    font-weight: 600;
}

.lang-bubble.lang-ar {
    font-size: 1rem;
    padding: 0.6rem 1.5rem;
}

.arabic-highlight {
    width: 100%;
    max-width: 480px;
}

.arabic-card {
    background: linear-gradient(135deg, var(--accent-cyan-dim), var(--accent-violet-dim));
    border: 2px solid var(--accent-cyan);
    border-radius: 14px;
    padding: 1.25rem 1.5rem;
    text-align: center;
}

.arabic-icon {
    font-size: 1.5rem;
    color: var(--accent-gold);
    margin-bottom: 0.5rem;
}

.arabic-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.multicultural-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

.dialects {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.dialect {
    padding: 0.35rem 0.75rem;
    background: var(--bg-card);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.lang-features {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.lang-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.lang-feature i {
    color: var(--accent-cyan);
    font-size: 1rem;
}

/* ==========================================
   Slide 7: Historical Data
   ========================================== */
.archive-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

.timeline-visual {
    width: 100%;
    max-width: 800px;
    position: relative;
    padding: 2rem 0;
}

.timeline-line {
    position: absolute;
    top: 50%;
    right: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
    border-radius: 2px;
}

.timeline-events {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.timeline-event {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.event-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 3px solid var(--accent-cyan);
    transition: all var(--transition-normal);
}

.event-dot.active {
    background: var(--accent-cyan);
    box-shadow: 0 0 20px var(--accent-cyan-glow);
}

.event-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.archive-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 900px;
}

.archive-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.archive-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
}

.archive-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--accent-cyan-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-cyan);
}

.archive-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.archive-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.archive-quote {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: var(--accent-gold-dim);
    border: 1px solid var(--accent-gold);
    border-radius: 12px;
}

.archive-quote i {
    color: var(--accent-gold);
    font-size: 1.5rem;
}

.archive-quote p {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ==========================================
   Slide 8: Benefits
   ========================================== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    width: 100%;
    max-width: 900px;
}

.benefits-grid .benefit-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: 400px;
    justify-self: center;
}

.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.benefit-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.benefit-card:hover::before {
    opacity: 1;
}

.benefit-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: var(--accent-cyan-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--accent-cyan);
}

.benefit-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.benefit-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.benefit-highlight {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--accent-cyan-dim);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-cyan);
}

/* ==========================================
   Slide 9: Closing
   ========================================== */
.slide-closing {
    text-align: center;
    gap: 2rem;
}

.closing-visual {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.closing-rings {
    position: absolute;
    width: 100%;
    height: 100%;
}

.closing-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 2px solid var(--accent-cyan-dim);
}

.closing-ring.ring-1 {
    width: 120px;
    height: 120px;
    animation: pulse-ring 3s ease-out infinite;
}

.closing-ring.ring-2 {
    width: 160px;
    height: 160px;
    animation: pulse-ring 3s ease-out infinite 1s;
}

.closing-ring.ring-3 {
    width: 200px;
    height: 200px;
    animation: pulse-ring 3s ease-out infinite 2s;
}

.closing-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    z-index: 10;
    box-shadow: var(--shadow-glow);
}

.closing-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.closing-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
}

.closing-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.cta-section {
    margin-top: 1rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.contact-item i {
    color: var(--accent-cyan);
}

.closing-message {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.closing-message p {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 1024px) {
    .solution-visualization {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .unified-sphere {
        width: 250px;
        height: 250px;
    }
    
    .workflow-arrow {
        display: none;
    }
    
    .workflow-container {
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 50px;
        --container-padding: 1rem;
    }
    
    .theme-toggle {
        width: 36px;
        height: 36px;
    }
    
    .slide-indicators {
        display: none;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .nav-controls {
        gap: 1rem;
    }
    
    .slide-counter {
        font-size: 0.875rem;
    }
    
    .nav-btn {
        width: 40px;
        height: 40px;
    }
    
    .observatory-visual {
        width: 200px;
        height: 200px;
    }
    
    .observatory-center {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
    }
    
    .ring-1 { width: 100px; height: 100px; }
    .ring-2 { width: 140px; height: 140px; }
    .ring-3 { width: 180px; height: 180px; }
    
    .silos-container {
        flex-direction: column;
    }
    
    .silo-gap {
        flex-direction: row;
    }
    
    .gap-line {
        width: 20px;
        height: 2px;
    }
    
    .challenge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-value {
        font-size: 2.5rem;
    }
    
    .timeline-events {
        flex-wrap: wrap;
        gap: 1rem;
        justify-content: center;
    }
    
    .timeline-line {
        display: none;
    }
}

@media (max-width: 480px) {
    .challenge-grid {
        grid-template-columns: 1fr;
    }
    
    .pillars {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
    }
    
    .gap-consequences {
        flex-direction: column;
    }
    
    .lang-features {
        flex-direction: column;
    }
    
    .archive-features {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .dialects {
        gap: 0.5rem;
    }
    
    .dialect {
        padding: 0.375rem 0.75rem;
        font-size: 0.8rem;
    }
}

/* ==========================================
   Slide 7: Use Cases - Strategic Monitoring
   ========================================== */
.usecases-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    width: 100%;
    max-width: 1000px;
    margin-top: 0.5rem;
}

.usecase-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
}

.usecase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.usecase-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-cyan);
    box-shadow: 0 20px 60px rgba(0, 240, 255, 0.15), var(--shadow-glow);
}

.usecase-card:hover::before {
    opacity: 1;
}

.usecase-card[data-usecase="events"]:hover {
    border-color: var(--accent-gold);
    box-shadow: 0 20px 60px rgba(255, 215, 0, 0.15), 0 0 30px var(--accent-gold-dim);
}

.usecase-card[data-usecase="events"]::before {
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-red));
}

/* Visual: Orbit Animation for Competitors */
.usecase-visual {
    width: 120px;
    height: 120px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.usecase-orbit {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-center {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: white;
    z-index: 10;
    box-shadow: 0 0 30px var(--accent-cyan-dim);
    animation: orbit-center-pulse 2s ease-in-out infinite;
}

@keyframes orbit-center-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 30px var(--accent-cyan-dim); }
    50% { transform: scale(1.1); box-shadow: 0 0 50px var(--accent-cyan-glow); }
}

.orbit-ring {
    position: absolute;
    width: 105px;
    height: 105px;
    border: 2px dashed var(--accent-cyan-dim);
    border-radius: 50%;
    animation: orbit-spin 12s linear infinite;
}

@keyframes orbit-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.orbit-item {
    position: absolute;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--accent-cyan);
    animation: orbit-item-counter 12s linear infinite;
}

@keyframes orbit-item-counter {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

.orbit-item.item-1 { top: -13px; left: 50%; transform: translateX(-50%); }
.orbit-item.item-2 { right: -13px; top: 50%; transform: translateY(-50%); }
.orbit-item.item-3 { bottom: -13px; left: 50%; transform: translateX(-50%); }
.orbit-item.item-4 { left: -13px; top: 50%; transform: translateY(-50%); }

.usecase-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--accent-cyan);
    animation: usecase-pulse-ring 2s ease-out infinite;
    opacity: 0;
}

@keyframes usecase-pulse-ring {
    0% { transform: scale(0.8); opacity: 0.8; }
    100% { transform: scale(1.3); opacity: 0; }
}

/* Visual: Radar Animation for Events */
.usecase-radar {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radar-center {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-red));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: white;
    z-index: 10;
    box-shadow: 0 0 30px var(--accent-gold-dim);
    animation: radar-center-glow 2s ease-in-out infinite;
}

@keyframes radar-center-glow {
    0%, 100% { box-shadow: 0 0 30px var(--accent-gold-dim); }
    50% { box-shadow: 0 0 50px var(--accent-gold), 0 0 80px var(--accent-gold-dim); }
}

.radar-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--accent-gold-dim);
}

.radar-ring.ring-1 { width: 55px; height: 55px; }
.radar-ring.ring-2 { width: 80px; height: 80px; }
.radar-ring.ring-3 { width: 110px; height: 110px; }

.radar-sweep {
    position: absolute;
    width: 50%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-gold), transparent);
    transform-origin: left center;
    left: 50%;
    top: 50%;
    animation: radar-sweep-spin 3s linear infinite;
    box-shadow: 0 0 15px var(--accent-gold);
}

@keyframes radar-sweep-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.radar-blip {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-gold);
    animation: radar-blip-pulse 3s ease-in-out infinite;
    box-shadow: 0 0 10px var(--accent-gold);
}

.radar-blip.blip-1 { top: 25%; right: 30%; animation-delay: 0s; }
.radar-blip.blip-2 { bottom: 35%; left: 25%; animation-delay: 1s; }
.radar-blip.blip-3 { top: 40%; right: 20%; animation-delay: 2s; }

@keyframes radar-blip-pulse {
    0%, 100% { opacity: 0.3; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* Usecase Content */
.usecase-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

.usecase-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--accent-cyan-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent-cyan);
    margin-bottom: 0.25rem;
}

.usecase-icon.events-icon {
    background: var(--accent-gold-dim);
    color: var(--accent-gold);
}

.usecase-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.usecase-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    max-width: 260px;
}

.usecase-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-top: 0.25rem;
    text-align: right;
    width: 100%;
}

.usecase-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.usecase-features li:hover {
    background: var(--accent-cyan-dim);
    color: var(--text-primary);
    transform: translateX(-5px);
}

.usecase-card[data-usecase="events"] .usecase-features li:hover {
    background: var(--accent-gold-dim);
}

.usecase-features li i {
    color: var(--accent-green);
    font-size: 0.8rem;
    flex-shrink: 0;
}

/* Tagline */
.usecases-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-violet-dim), rgba(139, 92, 246, 0.05));
    border: 2px solid var(--accent-violet);
    border-radius: 50px;
    margin-top: 0.75rem;
    animation: tagline-float 3s ease-in-out infinite;
}

@keyframes tagline-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.usecases-tagline i {
    color: var(--accent-violet);
    font-size: 1.1rem;
    animation: shield-pulse 2s ease-in-out infinite;
}

@keyframes shield-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

.usecases-tagline span {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Responsive for Use Cases */
@media (max-width: 900px) {
    .usecases-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .usecase-card {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .usecase-visual {
        width: 140px;
        height: 140px;
    }
    
    .orbit-ring {
        width: 120px;
        height: 120px;
    }
    
    .orbit-center {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .orbit-item {
        width: 28px;
        height: 28px;
        font-size: 0.75rem;
    }
    
    .radar-ring.ring-3 {
        width: 130px;
        height: 130px;
    }
    
    .usecase-title {
        font-size: 1.25rem;
    }
    
    .usecases-tagline {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
        padding: 1rem 1.5rem;
    }
    
    .usecases-tagline span {
        font-size: 1rem;
    }
}

/* ==========================================
   Reduced Motion
   ========================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ==========================================
   Print Styles
   ========================================== */
@media print {
    .nav-header,
    .progress-bar,
    .slide-indicators,
    .theme-toggle,
    #particles-js {
        display: none !important;
    }
    
    .slide {
        position: relative;
        opacity: 1;
        visibility: visible;
        transform: none;
        page-break-after: always;
        height: auto;
        min-height: 100vh;
    }
    
    .presentation {
        position: relative;
        top: 0;
    }
}