/* 
   Devon Büsser Portfolio CSS
   Designed with Premium Glassmorphism, HSL color system & Dark Aesthetics
*/

/* --- CSS Variables & Design Tokens --- */
:root {
    --bg-primary: hsl(224, 25%, 8%);
    --bg-secondary: hsl(224, 25%, 12%);
    --bg-tertiary: hsl(224, 25%, 15%);
    --card-bg: hsla(224, 25%, 14%, 0.6);
    --card-border: hsla(224, 20%, 25%, 0.4);
    
    --primary: hsl(263, 90%, 65%);
    --primary-glow: hsla(263, 90%, 65%, 0.15);
    --secondary: hsl(187, 90%, 55%);
    --secondary-glow: hsla(187, 90%, 55%, 0.15);
    
    --text-main: hsl(210, 40%, 98%);
    --text-muted: hsl(215, 20%, 70%);
    --text-dim: hsl(215, 12%, 50%);
    
    --font-headers: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-slow: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    --container-max-width: 1140px;
    --header-height: 80px;
}

/* --- Base & Reset --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

canvas#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at 50% 30%, hsl(224, 25%, 12%) 0%, var(--bg-primary) 70%);
}

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headers);
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}

a {
    color: var(--secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary);
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* --- Shared Components --- */
.section-header {
    margin-bottom: 60px;
    position: relative;
}

.section-tag {
    font-family: var(--font-headers);
    color: var(--secondary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 8px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--text-main) 30%, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-headers);
    font-size: 1rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 30px;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), hsl(263, 90%, 55%));
    color: white;
    border: none;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
    color: white;
}

.btn-secondary {
    background: hsla(224, 25%, 15%, 0.6);
    color: var(--text-main);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(5px);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--secondary);
    transform: translateY(-2px);
    color: var(--text-main);
}

/* --- Header / Navigation --- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: hsla(224, 25%, 8%, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.main-header.scrolled {
    height: 75px;
    background-color: transparent;
    backdrop-filter: none;
    border-bottom: 1px solid transparent;
    box-shadow: none;
    pointer-events: none;
}

/* Maintain solid background on scroll if mobile menu is open */
.main-header.scrolled.menu-open {
    background-color: var(--bg-primary);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    pointer-events: auto;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: var(--font-headers);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    display: flex;
    align-items: center;
    letter-spacing: -1px;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    border-radius: 100px;
    padding: 0 20px;
    height: 46px;
}

/* Island styling for logo on scroll */
.main-header.scrolled .logo {
    background-color: hsla(224, 25%, 12%, 0.85);
    backdrop-filter: blur(12px);
    border-color: var(--card-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(187, 242, 253, 0.1);
    padding: 0 24px;
    animation: float-island-left 4.5s ease-in-out infinite;
    pointer-events: auto;
}

/* Island styling for nav-menu on scroll (Desktop only) */
@media (min-width: 769px) {
    .main-header .nav-menu {
        transition: all var(--transition-normal);
        border: 1px solid transparent;
        border-radius: 100px;
        padding: 0 20px;
        height: 46px;
        display: flex;
        align-items: center;
    }
    
    .main-header.scrolled .nav-menu {
        background-color: hsla(224, 25%, 12%, 0.85);
        backdrop-filter: blur(12px);
        border-color: var(--card-border);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(263, 90, 65, 0.08);
        padding: 0 24px;
        animation: float-island-right 4.5s ease-in-out infinite;
        pointer-events: auto;
    }
}

/* Island styling for nav-toggle on scroll (Mobile only) */
@media (max-width: 768px) {
    .main-header .nav-toggle {
        transition: all var(--transition-normal);
        border: 1px solid transparent;
        border-radius: 50%;
        width: 46px;
        height: 46px;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .main-header.scrolled .nav-toggle {
        background-color: hsla(224, 25%, 12%, 0.85);
        backdrop-filter: blur(12px);
        border-color: var(--card-border);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(263, 90, 65, 0.08);
        animation: float-island-right 4.5s ease-in-out infinite;
        pointer-events: auto;
    }
}

/* Floating animations for islands */
@keyframes float-island-left {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-4px);
    }
}

@keyframes float-island-right {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(4px);
    }
}

.logo-accent {
    color: var(--secondary);
    font-weight: 400;
}

/* Logo SVG Hover Animations */
.logo-svg {
    overflow: visible;
}

.logo-bracket {
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.logo-text-main {
    transition: fill var(--transition-normal), filter var(--transition-normal);
}

.logo-bracket text {
    transition: fill var(--transition-normal), filter var(--transition-normal);
}

.logo-bracket-left {
    transform-origin: 21px 14px;
}

.logo-bracket-right {
    transform-origin: 62px 22px;
}

.logo:hover .logo-bracket-left {
    transform: translateX(-8px);
    opacity: 1;
}

.logo:hover .logo-bracket-left text {
    fill: var(--text-main);
    filter: drop-shadow(0 0 5px var(--secondary));
}

.logo:hover .logo-bracket-right {
    transform: translateX(8px);
    opacity: 1;
}

.logo:hover .logo-bracket-right text {
    fill: var(--text-main);
    filter: drop-shadow(0 0 5px var(--secondary));
}

.logo:hover .logo-text-main {
    fill: var(--secondary);
    filter: drop-shadow(0 0 8px var(--secondary));
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    left: 0;
    transition: transform var(--transition-normal);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

.nav-menu ul {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-headers);
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width var(--transition-normal);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-main);
}

.nav-link.active::after {
    width: 100%;
}

/* --- Hero Section --- */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.hero-greeting {
    font-family: var(--font-headers);
    color: var(--secondary);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 15px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 20px;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 40%, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--text-main);
}

.typed-text {
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--primary);
    margin-left: 4px;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 49% { background-color: var(--primary); }
    50%, 100% { background-color: transparent; }
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Hero Code Visual Card */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    z-index: -1;
    filter: blur(30px);
    animation: float-glow 8s infinite alternate ease-in-out;
}

@keyframes float-glow {
    0% { transform: translate(-20px, -20px) scale(1); }
    100% { transform: translate(20px, 20px) scale(1.1); }
}

.visual-card {
    width: 100%;
    max-width: 450px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: transform var(--transition-slow);
}

.visual-card:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg) scale(1.02);
}

.card-header {
    background: rgba(0,0,0,0.2);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--card-border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.dot.red { background-color: #ff5f56; }
.dot.yellow { background-color: #ffbd2e; }
.dot.green { background-color: #27c93f; }

.card-title {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-left: 8px;
}

.card-body {
    padding: 24px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.keyword { color: hsl(300, 80%, 70%); }
.class-name { color: hsl(45, 90%, 65%); }
.function { color: hsl(190, 80%, 60%); }
.string { color: hsl(100, 70%, 60%); }

.scroll-down-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translate(-50%, 0); }
    40% { transform: translate(-50%, -10px); }
    60% { transform: translate(-50%, -5px); }
}

/* --- About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 24px;
}

.about-text p strong {
    color: var(--text-main);
    font-weight: 600;
}

.skills-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.skills-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--secondary);
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.skill-category h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.category-icon {
    color: var(--secondary);
}

.skill-category ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-category ul li {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.skill-category ul li:hover {
    border-color: var(--secondary);
    color: var(--text-main);
    transform: translateY(-2px);
    background: var(--bg-tertiary);
}

/* --- Projects Section --- */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}

.filter-btn {
    background: none;
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-family: var(--font-headers);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    border-color: var(--primary);
    color: var(--text-main);
    background-color: var(--primary-glow);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 24px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 500px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: all var(--transition-normal);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.project-card-link:hover .project-card {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 30px var(--primary-glow);
    border-color: rgba(255, 255, 255, 0.1);
}

.project-card-link:hover .project-card::before {
    transform: scaleX(1);
}

/* Clickable Project Card Link Wrapper */
.project-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: 12px;
    cursor: pointer;
}

.project-card-link:hover {
    color: inherit;
}

/* Website Preview Browser Mockup */
.project-preview {
    width: 100%;
    margin-bottom: 20px;
    background: rgba(30, 30, 40, 0.3);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-normal);
}

.browser-header {
    display: flex;
    align-items: center;
    padding: 6px 10px;
    background: rgba(20, 20, 30, 0.5);
    border-bottom: 1px solid var(--card-border);
    gap: 10px;
}

.browser-dots {
    display: flex;
    align-items: center;
    gap: 4px;
}

.browser-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}
.browser-dot.red { background-color: #ff5f56; }
.browser-dot.yellow { background-color: #ffbd2e; }
.browser-dot.green { background-color: #27c93f; }

.browser-address-bar {
    flex-grow: 1;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    font-size: 0.65rem;
    color: var(--text-dim);
    padding: 1px 6px;
    text-align: center;
    font-family: monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.browser-body {
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    position: relative;
    background: #0f1015;
}

.browser-body img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform var(--transition-slow);
}

.project-card-link:hover .browser-body img {
    transform: scale(1.05);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.project-favicon {
    width: 36px;
    height: 36px;
    object-fit: contain;
    filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.2));
    transition: transform var(--transition-fast);
}

.project-card-link:hover .project-favicon {
    transform: scale(1.1);
}

.project-status-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-muted);
}

.project-card-title {
    font-size: 1.35rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--text-main), var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.project-card-desc {
    color: var(--text-muted);
    font-size: 0.92rem;
    margin-bottom: 20px;
    line-height: 1.5;
    flex-grow: 1;
}

.project-card-tech {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--card-border);
}

.project-card-tech li {
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.project-card-body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

/* Hover overlay details — covers entire project card */
.project-details-overlay {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    bottom: 0;
    background: hsla(224, 25%, 10%, 0.96);
    backdrop-filter: blur(24px);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: top var(--transition-normal);
    overflow-y: auto;
    border-radius: 12px;
    z-index: 5;
}

/* Scrollbar styling for overlay features */
.project-details-overlay::-webkit-scrollbar {
    width: 4px;
}
.project-details-overlay::-webkit-scrollbar-track {
    background: transparent;
}
.project-details-overlay::-webkit-scrollbar-thumb {
    background: var(--card-border);
    border-radius: 2px;
}
.project-details-overlay::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

.project-card-link:hover .project-details-overlay {
    top: 0;
}

.project-details-overlay h4 {
    font-size: 1.1rem;
    color: var(--secondary);
    margin-bottom: 12px;
}

.project-details-overlay ul {
    list-style: none;
}

.project-details-overlay ul li {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    position: relative;
    padding-left: 16px;
}

.project-details-overlay ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* Hint text below projects */
.projects-hint {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 32px;
    letter-spacing: 0.5px;
    opacity: 0.7;
}

.projects-hint i {
    margin-right: 6px;
    color: var(--secondary);
    font-size: 0.8rem;
}

/* --- CV / Timeline Section --- */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 31px;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--bg-tertiary), var(--primary), var(--secondary), var(--bg-tertiary));
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    padding-left: 80px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 20px;
    top: 6px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 4px solid var(--primary);
    z-index: 2;
    box-shadow: 0 0 10px var(--primary-glow);
    transition: all var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
    border-color: var(--secondary);
    box-shadow: 0 0 15px var(--secondary-glow);
    transform: scale(1.1);
}

.timeline-date {
    font-family: var(--font-headers);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timeline-content {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 24px 30px;
    transition: transform var(--transition-normal), border-color var(--transition-fast);
}

.timeline-content:hover {
    transform: translateX(5px);
    border-color: var(--card-border);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 4px;
}

.timeline-content h4 {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dim);
    margin-bottom: 16px;
}

.timeline-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Contact Section --- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.75rem;
    margin-bottom: 16px;
}

.contact-info p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 40px;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.info-item {
    display: flex;
    gap: 16px;
}

.info-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary);
    font-size: 1.25rem;
}

.info-text span {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-text p {
    font-size: 1rem;
    color: var(--text-main);
    margin: 0;
}

.info-text a {
    color: var(--text-main);
}

.info-text a:hover {
    color: var(--secondary);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.social-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--primary-glow);
}

/* Contact Form */
.contact-form-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-headers);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input, .form-group textarea {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 10px var(--secondary-glow);
}

.btn-submit {
    align-self: flex-start;
    margin-top: 10px;
}

.form-status {
    font-size: 0.95rem;
    margin-top: 10px;
    padding: 12px;
    border-radius: 8px;
    display: none;
}

.form-status.success {
    display: block;
    background-color: rgba(46, 204, 113, 0.15);
    border: 1px solid rgb(46, 204, 113);
    color: rgb(46, 204, 113);
}

.form-status.error {
    display: block;
    background-color: rgba(231, 76, 60, 0.15);
    border: 1px solid rgb(231, 76, 60);
    color: rgb(231, 76, 60);
}

/* --- Footer --- */
.main-footer {
    position: relative;
    border-top: 1px solid var(--card-border);
    padding: 80px 0 40px 0;
    background-color: var(--bg-secondary);
    overflow: hidden;
}

/* Glowing top border */
.main-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--primary) 30%, var(--secondary) 70%, transparent 100%);
    opacity: 0.8;
}

/* Ambient bottom glow leak */
.footer-glow {
    position: absolute;
    bottom: -150px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    filter: blur(80px);
}

.footer-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

/* Column 1: Brand */
.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
}

.footer-logo {
    display: inline-block;
    transition: transform var(--transition-normal);
}

.footer-logo:hover {
    transform: scale(1.03);
}

.footer-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 440px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: hsla(224, 25%, 20%, 0.4);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
}

.footer-social-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    color: var(--text-main);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(187, 75, 255, 0.3);
}

/* Column Titles */
.footer-col-title {
    font-family: var(--font-headers);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 8px;
}

.footer-col-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--secondary);
    border-radius: 2px;
}

/* Column 2: Links */
.footer-links-col {
    display: flex;
    flex-direction: column;
}

.footer-links-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    color: var(--text-muted);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.footer-link i {
    font-size: 0.7rem;
    color: var(--secondary);
    opacity: 0.5;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.footer-link:hover {
    color: var(--text-main);
    padding-left: 6px;
}

.footer-link:hover i {
    opacity: 1;
    transform: translateX(3px);
}

/* Column 3: Status & CTA */
.footer-status-col {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-status-card {
    display: flex;
    align-items: center;
    gap: 10px;
    background: hsla(224, 25%, 20%, 0.4);
    border: 1px solid var(--card-border);
    padding: 8px 16px;
    border-radius: 30px;
    margin-bottom: 15px;
    transition: border-color var(--transition-normal);
}

.footer-status-card:hover {
    border-color: var(--secondary);
}

.status-indicator-wrapper {
    position: relative;
    width: 8px;
    height: 8px;
}

.status-dot {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: #2ecc71;
    border-radius: 50%;
}

.status-dot-pulse {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: #2ecc71;
    border-radius: 50%;
    animation: statusPulse 2s infinite ease-out;
}

@keyframes statusPulse {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    100% {
        transform: scale(2.8);
        opacity: 0;
    }
}

.status-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-main);
}

.footer-status-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 20px;
}

/* CTA button */
.btn-footer-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    border-radius: 8px;
    background: var(--primary);
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-footer-cta i {
    transition: transform var(--transition-normal);
}

.btn-footer-cta:hover {
    background: var(--secondary);
    box-shadow: 0 4px 15px var(--secondary-glow);
    transform: translateY(-2px);
}

.btn-footer-cta:hover i {
    transform: translateX(4px);
}

/* Footer Bottom */
.footer-bottom {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--card-border);
    padding-top: 30px;
}

.footer-bottom-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright p, 
.footer-credit p {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.heart-pulse {
    display: inline-block;
    color: #e74c3c;
    animation: heartPulse 1.2s infinite ease-in-out;
}

@keyframes heartPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.25);
    }
}

/* Back to Top button */
.footer-back-to-top {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background: hsla(224, 25%, 20%, 0.6);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.footer-back-to-top:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    color: var(--text-main);
    transform: translateY(-4px);
    box-shadow: 0 5px 15px var(--primary-glow);
}

/* Responsive adjustment for footer grid */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .main-footer {
        padding: 60px 0 30px 0;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 35px;
        margin-bottom: 40px;
    }
    .footer-bottom-container {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    .footer-back-to-top {
        order: -1; /* Place it above copyright on mobile */
    }
}

/* --- Media Queries (Responsive Design) --- */

@media (max-width: 992px) {
    :root {
        --header-height: 70px;
    }
    
    .section-padding {
        padding: 80px 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .visual-card {
        transform: none;
        max-width: 400px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--bg-primary);
        border-top: 1px solid var(--card-border);
        transition: left var(--transition-normal);
        padding: 40px 24px;
        z-index: 999;
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: 45px;
    }
    
    .timeline-dot {
        left: 4px;
    }
    
    /* Toggle active icon state */
    .nav-toggle.active .hamburger {
        background: transparent;
    }
    .nav-toggle.active .hamburger::before {
        transform: translateY(8px) rotate(45deg);
    }
    .nav-toggle.active .hamburger::after {
        transform: translateY(-8px) rotate(-45deg);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .contact-form-container {
        padding: 24px 16px;
    }
}