/* ====================================
   TUNA OZCAN PORTFOLIO - STYLE.CSS
   Ultra-Enhanced Portfolio v3.0
   ==================================== */

/* ====================================
   CSS VARIABLES & RESET
   ==================================== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --accent-cyan: #00d9ff;
    --accent-purple: #b066ff;
    --accent-pink: #ff3d9a;
    --accent-green: #00ff88;
    --accent-orange: #ffaa00;
    --glass-bg: rgba(20, 20, 30, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --card-hover: rgba(0, 217, 255, 0.1);
    --glow-cyan: 0 0 30px rgba(0, 217, 255, 0.3);
    --glow-purple: 0 0 30px rgba(176, 102, 255, 0.3);
    --success-green: #00ff88;
    --warning-orange: #ffaa00;
}

[data-theme="light"] {
    --bg-primary: #f5f5fa;
    --bg-secondary: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a68;
    --accent-cyan: #0088cc;
    --accent-purple: #7744dd;
    --accent-pink: #dd2266;
    --accent-green: #00cc66;
    --accent-orange: #dd8800;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.08);
    --card-hover: rgba(0, 136, 204, 0.08);
    --glow-cyan: 0 0 20px rgba(0, 136, 204, 0.15);
    --glow-purple: 0 0 20px rgba(119, 68, 221, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    transition: background 0.4s ease, color 0.4s ease;
}

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

/* Animated background gradient */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 217, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(176, 102, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 61, 154, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    animation: bgShift 15s ease-in-out infinite;
}

@keyframes bgShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Reading Progress Bar */
#reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink));
    z-index: 10000;
    transition: width 0.1s ease;
}

/* ====================================
   TYPOGRAPHY
   ==================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: 700;
}

.mono {
    font-family: 'JetBrains Mono', monospace;
}

/* ====================================
   UTILITY CLASSES
   ==================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ====================================
   HEADER & NAVIGATION
   ==================================== */
header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    z-index: 1000;
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.05em;
    color: var(--text-primary);
    text-decoration: none;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo::before {
    content: '◆';
    color: var(--accent-cyan);
    font-size: 1.2rem;
    animation: pulse 2s ease-in-out infinite;
}

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

.nav-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle, .font-size-btn, .sound-toggle {
    background: none;
    border: 2px solid var(--glass-border);
    cursor: pointer;
    color: var(--text-primary);
    padding: 10px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    width: 44px;
    height: 44px;
}

.theme-toggle:hover, .font-size-btn:hover, .sound-toggle:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

.theme-toggle:hover {
    transform: rotate(180deg);
}

.sun-icon { display: block; }
.moon-icon { display: none; }
[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

.sound-on { display: block; }
.sound-off { display: none; }
body.sound-enabled .sound-on { display: block; }
body.sound-enabled .sound-off { display: none; }
body:not(.sound-enabled) .sound-on { display: none; }
body:not(.sound-enabled) .sound-off { display: block; }

nav {
    display: flex;
    align-items: center;
    gap: 25px;
}

nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.2s;
    position: relative;
    padding: 4px 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    transition: width 0.3s;
}

nav a:hover {
    color: var(--accent-cyan);
}

nav a:hover::after {
    width: 100%;
}

/* ====================================
   HERO SECTION
   ==================================== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 20px 60px;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    animation: fadeInUp 1s ease-out;
    position: relative;
    z-index: 2;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content h1 {
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.subtitle {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-cta {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 25px rgba(0, 217, 255, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

/* Floating elements */
.floating-element {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.15;
    pointer-events: none;
    animation: float 20s ease-in-out infinite;
}

.float-1 {
    top: 10%;
    left: 10%;
    background: var(--accent-cyan);
    animation-delay: 0s;
}

.float-2 {
    top: 60%;
    right: 10%;
    background: var(--accent-purple);
    animation-delay: 7s;
}

.float-3 {
    bottom: 10%;
    left: 40%;
    background: var(--accent-pink);
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-30px) rotate(120deg); }
    66% { transform: translateY(30px) rotate(240deg); }
}

/* Stats Counter */
.hero-stats {
    display: flex;
    gap: 40px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* ====================================
   STREAK & ACHIEVEMENTS
   ==================================== */
.streak-badge {
    position: fixed;
    top: 100px;
    right: 30px;
    padding: 15px 20px;
    border-radius: 16px;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    transform: translateX(400px);
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.streak-badge.show {
    transform: translateX(0);
}

.streak-icon {
    font-size: 1.5rem;
    animation: bounce 1s ease-in-out infinite;
}

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

/* Achievement Notification */
.achievement-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    padding: 40px;
    border-radius: 24px;
    z-index: 5000;
    text-align: center;
    max-width: 400px;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.achievement-popup.show {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.achievement-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: achievementPop 0.6s ease-out;
}

@keyframes achievementPop {
    0% { transform: scale(0) rotate(0deg); }
    50% { transform: scale(1.2) rotate(180deg); }
    100% { transform: scale(1) rotate(360deg); }
}

.achievement-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.achievement-desc {
    color: var(--text-secondary);
}

/* ====================================
   CONTROLS & FILTERS
   ==================================== */
#controls {
    margin: 80px 0 40px;
    padding: 25px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

.search-wrapper {
    flex-grow: 1;
    position: relative;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: 14px 18px 14px 48px;
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.5;
    pointer-events: none;
}

/* Search Suggestions */
.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 8px;
    border-radius: 14px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 100;
    display: none;
}

.search-suggestions.show {
    display: block;
}

.suggestion-item {
    padding: 12px 18px;
    cursor: pointer;
    transition: background 0.2s;
    border-bottom: 1px solid var(--glass-border);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background: var(--card-hover);
}

.filter-wrapper {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.control-select {
    padding: 14px 18px;
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.3s;
}

.control-select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

/* View Modes */
.view-modes {
    display: flex;
    gap: 8px;
}

.view-mode-btn {
    padding: 10px 12px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    border-radius: 10px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.view-mode-btn.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    border-color: transparent;
}

.view-mode-btn:hover:not(.active) {
    border-color: var(--accent-cyan);
}

/* ====================================
   SECTIONS
   ==================================== */
.page-section {
    padding: 40px 0;
    scroll-margin-top: 120px;
}

.section-header {
    margin: 40px 0 30px 0;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.section-title-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
}

.section-badge {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tag Cloud */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 30px;
    justify-content: center;
}

.tag-cloud-item {
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.tag-cloud-item:hover,
.tag-cloud-item.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

/* ====================================
   ARTICLE GRID
   ==================================== */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.grid-container.list-view {
    grid-template-columns: 1fr;
}

.blog-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    height: 100%;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
}

.grid-container.list-view .blog-card {
    flex-direction: row;
    height: auto;
}

.blog-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 22px;
    opacity: 0;
    transition: opacity 0.4s;
    z-index: -1;
}

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

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), var(--glow-cyan);
}

.card-image {
    height: 220px;
    background-color: var(--bg-secondary);
    background-size: cover;
    background-position: center;
    margin: -20px -20px 20px -20px;
    border-radius: 20px 20px 0 0;
    position: relative;
    overflow: hidden;
}

.grid-container.list-view .card-image {
    width: 300px;
    height: auto;
    min-height: 200px;
    margin: 0;
    border-radius: 20px 0 0 20px;
}

.card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.7));
}

/* Article Popularity Badge */
.popularity-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 2;
}

.card-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    margin-bottom: 12px;
    font-family: 'JetBrains Mono', monospace;
}

.card-cat {
    color: var(--accent-cyan);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.read-time {
    color: var(--text-secondary);
    font-weight: 500;
}

.card-title {
    font-size: 1.35rem;
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.3;
}

.card-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tag {
    padding: 4px 10px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: all 0.2s;
    cursor: pointer;
}

.tag:hover {
    background: var(--accent-cyan);
    color: white;
    border-color: var(--accent-cyan);
}

.card-actions {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--glass-border);
}

.read-more {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 6px;
}

.action-buttons {
    display: flex;
    gap: 10px;
    align-items: center;
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: all 0.2s;
    color: var(--text-primary);
    padding: 6px;
    position: relative;
}

.icon-btn:hover {
    opacity: 1;
    color: var(--accent-cyan);
    transform: scale(1.15);
}

.icon-btn.bookmarked {
    color: var(--accent-purple);
    opacity: 1;
}

/* Reaction Buttons */
.reactions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.reaction-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 4px 10px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.85rem;
}

.reaction-btn:hover {
    transform: scale(1.1);
    border-color: var(--accent-cyan);
}

.reaction-btn.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    border-color: transparent;
}

/* Recommended Section */
.recommended-section {
    position: relative;
    border: 3px solid transparent;
    background-image: linear-gradient(var(--glass-bg), var(--glass-bg)),
                      linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    box-shadow: var(--glow-cyan);
    margin-bottom: 60px;
}

.recommended-badge {
    position: absolute;
    top: -18px;
    left: 30px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    padding: 10px 20px;
    font-size: 0.8rem;
    font-weight: 800;
    border-radius: 25px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    box-shadow: 0 8px 20px rgba(0, 217, 255, 0.4);
    z-index: 10;
    animation: badgePulse 2s ease-in-out infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    display: none;
}

.empty-icon {
    opacity: 0.3;
    margin-bottom: 20px;
}

/* ====================================
   CHATBOT
   ==================================== */
.chat-fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 50%;
    box-shadow: 0 8px 25px rgba(0, 217, 255, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: white;
    z-index: 2500;
    transition: all 0.3s;
    border: none;
    animation: fabPulse 3s ease-in-out infinite;
}

@keyframes fabPulse {
    0%, 100% { box-shadow: 0 8px 25px rgba(0, 217, 255, 0.5); }
    50% { box-shadow: 0 8px 35px rgba(0, 217, 255, 0.7); }
}

.chat-fab:hover {
    transform: scale(1.1) rotate(5deg);
}

.chat-fab.hide {
    display: none;
}

.chat-window {
    position: fixed;
    bottom: 110px;
    right: 30px;
    width: 400px;
    height: 550px;
    z-index: 2501;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: bottom right;
}

.chat-window.open {
    transform: scale(1);
    opacity: 1;
    pointer-events: all;
}

.chat-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.chat-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: white;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.chat-close:hover {
    opacity: 1;
}

.chat-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 3px;
}

.message {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.9rem;
    line-height: 1.5;
    animation: messageSlide 0.3s ease-out;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.bot {
    background: var(--glass-bg);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.message.user {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.chat-input-area {
    padding: 20px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: 12px;
}

.chat-input {
    flex-grow: 1;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.chat-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.chat-send {
    background: none;
    border: none;
    color: var(--accent-cyan);
    cursor: pointer;
    padding: 8px;
    transition: all 0.2s;
}

.chat-send:hover {
    transform: scale(1.15);
}

/* Voice Search Button */
.voice-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.2s;
}

.voice-btn:hover,
.voice-btn.listening {
    border-color: var(--accent-pink);
    color: var(--accent-pink);
}

/* ====================================
   ANALYTICS MODAL
   ==================================== */
.analytics-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    overflow-y: auto;
}

.analytics-modal.open {
    opacity: 1;
    pointer-events: all;
}

.dashboard-panel {
    width: 90%;
    max-width: 900px;
    padding: 50px;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s;
    margin: 40px 0;
}

.analytics-modal.open .dashboard-panel {
    transform: scale(1);
}

.close-dash {
    position: absolute;
    top: 25px;
    right: 25px;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-primary);
    opacity: 0.6;
    transition: opacity 0.2s;
}

.close-dash:hover {
    opacity: 1;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.analytics-card {
    padding: 25px;
    border-radius: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    text-align: center;
}

.analytics-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: 'JetBrains Mono', monospace;
}

.analytics-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.stat-row {
    margin-bottom: 20px;
}

.stat-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.progress-bar-bg {
    height: 10px;
    background: var(--glass-border);
    border-radius: 5px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    width: 0%;
    transition: width 1s ease;
    border-radius: 5px;
}

/* ====================================
   COOKIE BANNER
   ==================================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 3000;
    padding: 25px;
    transform: translateY(100%);
    transition: transform 0.4s;
    box-shadow: 0 -5px 30px rgba(0, 0, 0, 0.3);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
}

.cookie-text {
    flex: 1;
    min-width: 250px;
    font-size: 0.95rem;
}

.cookie-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.cookie-btn {
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 0.95rem;
}

.cookie-btn.accept {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
}

.cookie-btn.accept:hover {
    box-shadow: var(--glow-cyan);
    transform: translateY(-2px);
}

.cookie-btn.settings {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.cookie-btn.settings:hover {
    border-color: var(--accent-cyan);
}

/* ====================================
   FOOTER
   ==================================== */
footer {
    text-align: center;
    padding: 80px 0 50px 0;
    margin-top: 80px;
    border-top: 1px solid var(--glass-border);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 30px 0;
}

.social-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s;
}

.social-btn:hover {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: white;
    border-color: transparent;
    transform: translateY(-4px);
    box-shadow: var(--glow-cyan);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin: 25px 0;
    flex-wrap: wrap;
}

.footer-action,
.footer-link {
    cursor: pointer;
    text-decoration: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-action:hover,
.footer-link:hover {
    color: var(--accent-cyan);
}

/* ====================================
   TOAST NOTIFICATION
   ==================================== */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 16px 24px;
    border-radius: 14px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: all 0.3s;
    z-index: 3000;
    display: flex;
    align-items: center;
    gap: 12px;
    color: white;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success {
    background: var(--success-green);
}

.toast.warning {
    background: var(--warning-orange);
}

.toast.error {
    background: var(--accent-pink);
}

/* ====================================
   KEYBOARD SHORTCUTS HINT
   ==================================== */
.shortcuts-hint {
    position: fixed;
    bottom: 120px;
    right: 30px;
    padding: 20px 25px;
    border-radius: 14px;
    font-size: 0.9rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 1500;
}

.shortcuts-hint.show {
    opacity: 1;
}

.shortcuts-hint kbd {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 4px 8px;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

/* ====================================
   CONFETTI
   ==================================== */
.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    animation: confetti-fall 3s linear forwards;
}

@keyframes confetti-fall {
    to {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}

/* ====================================
   RESPONSIVE DESIGN
   ==================================== */
@media (max-width: 768px) {
    header {
        padding: 15px 20px;
        flex-wrap: wrap;
    }
    
    .nav-wrapper {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 15px;
    }
    
    nav {
        display: none;
    }
    
    #hero {
        padding: 100px 20px 40px;
        min-height: 80vh;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    #controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-wrapper {
        max-width: 100%;
    }
    
    .filter-wrapper {
        flex-wrap: wrap;
    }
    
    .control-select {
        flex: 1;
        min-width: 120px;
    }
    
    .grid-container {
        grid-template-columns: 1fr;
    }
    
    .grid-container.list-view .card-image {
        width: 100%;
        height: 200px;
        border-radius: 20px 20px 0 0;
    }
    
    .grid-container.list-view .blog-card {
        flex-direction: column;
    }
    
    .chat-window {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        height: 70vh;
        border-radius: 20px 20px 0 0;
    }
    
    .chat-fab {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
    }
    
    .toast {
        left: 20px;
        right: 20px;
        bottom: 100px;
    }
    
    .streak-badge {
        top: auto;
        bottom: 120px;
        right: 20px;
        left: 20px;
        width: auto;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-actions {
        width: 100%;
    }
    
    .cookie-btn {
        flex: 1;
    }
    
    .dashboard-panel {
        padding: 30px 20px;
        width: 95%;
    }
    
    .analytics-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* ====================================
   PRINT STYLES
   ==================================== */
@media print {
    header,
    footer,
    .chat-fab,
    .chat-window,
    .analytics-modal,
    #controls,
    .cookie-banner,
    .toast,
    .floating-element,
    .streak-badge,
    #particles-js,
    #reading-progress {
        display: none !important;
    }
    
    body {
        padding-top: 0;
        background: white;
        color: black;
    }
    
    .blog-card {
        page-break-inside: avoid;
    }
}

/* ====================================
   ACCESSIBILITY
   ==================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 2px;
}

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