/*
 * Demonte Walker Portfolio
 * Apple-inspired design system
 */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Colors - Apple inspired palette */
    --color-black: #1d1d1f;
    --color-gray-900: #2d2d2d;
    --color-gray-700: #424245;
    --color-gray-500: #6e6e73;
    --color-gray-400: #86868b;
    --color-gray-300: #a1a1a6;
    --color-gray-200: #d2d2d7;
    --color-gray-100: #f5f5f7;
    --color-white: #ffffff;

    /* Accent */
    --color-accent: #0071e3;
    --color-accent-hover: #0077ed;

    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;

    /* Container */
    --container-width: 1200px;
    --container-padding: 1.5rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-smooth: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-system);
    font-size: 17px;
    line-height: 1.47;
    color: var(--color-black);
    background: var(--color-white);
    overflow-x: hidden;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ============================================
   Navigation - Split Liquid Glass Pills
   Inspired by visionOS, iOS 18, Dynamic Island
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 24px;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1400px;
    margin: 0 auto;
}

.nav.hidden {
    transform: translateY(-120%);
    opacity: 0;
}

/* Base pill styles - shared liquid glass effect */
.nav-pill {
    position: relative;
    height: 48px;
    display: flex;
    align-items: center;
    border-radius: 28px;
    pointer-events: auto;

    /* Base glass layer */
    background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.78) 0%,
        rgba(255, 255, 255, 0.62) 100%
    );

    /* Critical: High-quality blur for liquid effect */
    backdrop-filter: blur(50px) saturate(180%) brightness(1.05);
    -webkit-backdrop-filter: blur(50px) saturate(180%) brightness(1.05);

    /* Layered shadow for depth - Apple's signature */
    box-shadow:
        0 0 0 0.5px rgba(0, 0, 0, 0.04),
        0 2px 4px rgba(0, 0, 0, 0.02),
        0 4px 8px rgba(0, 0, 0, 0.02),
        0 8px 16px rgba(0, 0, 0, 0.02),
        0 16px 32px rgba(0, 0, 0, 0.03),
        inset 0 1px 0 rgba(255, 255, 255, 0.7),
        inset 0 -1px 0 rgba(255, 255, 255, 0.2);

    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Specular highlight overlay */
.nav-pill::before {
    content: '';
    position: absolute;
    top: 0;
    left: 16px;
    right: 16px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.9) 20%,
        rgba(255, 255, 255, 1) 50%,
        rgba(255, 255, 255, 0.9) 80%,
        transparent 100%
    );
    border-radius: 1px;
    opacity: 0.8;
}

/* Inner glow for depth */
.nav-pill::after {
    content: '';
    position: absolute;
    inset: 1px;
    border-radius: 27px;
    background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.4) 0%,
        transparent 40%
    );
    pointer-events: none;
}

/* Left pill - Logo */
.nav-pill-left {
    padding: 0 20px;
}

/* Right pill - Links */
.nav-pill-right {
    padding: 0 6px;
}

/* Enhanced state when scrolled */
.nav.scrolled .nav-pill {
    background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.88) 0%,
        rgba(255, 255, 255, 0.72) 100%
    );
    box-shadow:
        0 0 0 0.5px rgba(0, 0, 0, 0.06),
        0 2px 4px rgba(0, 0, 0, 0.03),
        0 4px 8px rgba(0, 0, 0, 0.03),
        0 8px 16px rgba(0, 0, 0, 0.03),
        0 16px 32px rgba(0, 0, 0, 0.04),
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        inset 0 -1px 0 rgba(255, 255, 255, 0.3);
}

/* Logo styling */
.nav-logo {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-logo img {
    height: 56px;
    width: auto;
    object-fit: contain;
}

.nav-logo:hover {
    opacity: 0.7;
}

/* Navigation links */
.nav-links {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-links a {
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(0, 0, 0, 0.7);
    padding: 10px 16px;
    border-radius: 20px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover {
    color: rgba(0, 0, 0, 0.95);
    background: rgba(0, 0, 0, 0.05);
}

/* Resume button - Dark glass variant */
.nav-resume {
    position: relative;
    padding: 10px 20px !important;
    border-radius: 22px;
    font-weight: 600 !important;
    font-size: 0.8125rem !important;
    letter-spacing: -0.01em;

    /* Dark liquid glass */
    background: linear-gradient(
        to bottom,
        rgba(30, 30, 32, 0.92) 0%,
        rgba(20, 20, 22, 0.98) 100%
    ) !important;
    color: rgba(255, 255, 255, 0.95) !important;

    box-shadow:
        0 0 0 0.5px rgba(255, 255, 255, 0.1),
        0 2px 4px rgba(0, 0, 0, 0.1),
        0 4px 12px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);

    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* Dark glass specular highlight */
.nav-resume::before {
    content: '';
    position: absolute;
    top: 1px;
    left: 14px;
    right: 14px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    border-radius: 1px;
}

.nav-resume:hover {
    background: linear-gradient(
        to bottom,
        rgba(40, 40, 44, 0.95) 0%,
        rgba(25, 25, 28, 1) 100%
    ) !important;
    transform: translateY(-1px);
    box-shadow:
        0 0 0 0.5px rgba(255, 255, 255, 0.12),
        0 4px 8px rgba(0, 0, 0, 0.12),
        0 8px 24px rgba(0, 0, 0, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.nav-resume:active {
    transform: translateY(0) scale(0.98);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--space-3xl) var(--container-padding);
    position: relative;
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-100) 100%);
    overflow: hidden;
}

/* Floating gradient orbs - Apple style */
.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: floatOrb 20s ease-in-out infinite;
    pointer-events: none;
}

.hero::before {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 113, 227, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.hero::after {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(88, 86, 214, 0.12) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation-delay: -10s;
}

@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 10px) scale(1.02); }
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-gray-500);
    margin-bottom: var(--space-md);
    letter-spacing: 0.02em;
    opacity: 0;
    transform: translateY(20px);
    animation: textReveal 0.8s cubic-bezier(0.25, 0.1, 0.25, 1) 0.2s forwards;
}

.hero-title {
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--color-black);
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(30px);
    animation: textReveal 1s cubic-bezier(0.25, 0.1, 0.25, 1) 0.4s forwards;
}

@keyframes textReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title .highlight {
    color: var(--color-black);
    background: none;
    -webkit-background-clip: unset;
    -webkit-text-fill-color: var(--color-black);
    background-clip: unset;
    animation: none;
}

/* Typing Animation */
.typing-wrapper {
    display: inline;
}

.typing-text {
    font-weight: 700;
    position: relative;
    background-image: linear-gradient(90deg, #ff6b9d, #c44569, #ff6b9d);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 3s ease infinite;
}

@keyframes gradientFlow {
    0% { background-position: 0% center; }
    50% { background-position: 100% center; }
    100% { background-position: 0% center; }
}

/* Different gradient for each role */
.typing-text.designer {
    background-image: linear-gradient(90deg, #34c759, #30d158, #34c759);
}

.typing-text.developer {
    background-image: linear-gradient(90deg, #0071e3, #00c7ff, #0071e3);
}

.typing-text.engineer {
    background-image: linear-gradient(90deg, #ff6b9d, #c44569, #ff6b9d);
}

.typing-cursor {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 300;
    margin-left: 2px;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-subtitle {
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    font-weight: 400;
    color: var(--color-gray-500);
    max-width: 700px;
    margin: 0 auto var(--space-xl);
    line-height: 1.5;
    opacity: 0;
    transform: translateY(25px);
    animation: textReveal 1s cubic-bezier(0.25, 0.1, 0.25, 1) 0.6s forwards;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: textReveal 1s cubic-bezier(0.25, 0.1, 0.25, 1) 0.8s forwards;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 1.0625rem;
    font-weight: 500;
    border-radius: var(--radius-xl);
    transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.3);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--color-accent);
    font-size: 1.0625rem;
    font-weight: 500;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-accent);
    transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.btn-secondary:hover {
    background: rgba(0, 113, 227, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.15);
}

.btn-secondary:active {
    transform: translateY(0) scale(0.98);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-gray-400);
    font-size: 0.8125rem;
    animation: fadeIn 1s ease-out 0.5s both;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-gray-300);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-gray-400);
    border-radius: 2px;
    animation: scrollBounce 1.5s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(8px); opacity: 0.3; }
}

/* Mobile: Double chevron swipe down animation */
@media (max-width: 768px) {
    .scroll-indicator {
        width: 24px;
        height: 32px;
        border: none;
        border-radius: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        animation: chevronContainerBounce 1.5s ease-in-out infinite;
    }

    .scroll-indicator::before,
    .scroll-indicator::after {
        content: '';
        position: absolute;
        left: 50%;
        width: 12px;
        height: 12px;
        border-right: 2px solid var(--color-gray-400);
        border-bottom: 2px solid var(--color-gray-400);
        transform: translateX(-50%) rotate(45deg);
        background: none;
        border-radius: 0;
    }

    .scroll-indicator::before {
        top: 0;
        animation: chevronFade 1.5s ease-in-out infinite;
    }

    .scroll-indicator::after {
        top: 12px;
        animation: chevronFade 1.5s ease-in-out infinite 0.15s;
    }
}

@keyframes chevronContainerBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(6px);
    }
}

@keyframes chevronFade {
    0%, 100% {
        opacity: 0.4;
    }
    50% {
        opacity: 1;
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   Projects Section
   ============================================ */
.projects {
    padding: var(--space-3xl) var(--container-padding);
    max-width: var(--container-width);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--color-black);
    margin-bottom: var(--space-md);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.section-title.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s cubic-bezier(0.25, 0.1, 0.25, 1) 0.2s;
}

.section-subtitle.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(350px, 100%), 1fr));
    gap: var(--space-lg);
}

.project-grid.small {
    grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
}

.project-category {
    margin-top: var(--space-3xl);
}

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-gray-200);
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.category-title.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Project Card */
.project-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
    border: 1px solid var(--color-gray-200);
    opacity: 0;
    transform: translateY(40px) scale(0.95);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.project-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1), 0 10px 20px rgba(0, 0, 0, 0.06);
    border-color: transparent;
}

.project-card:active {
    transform: translateY(-6px) scale(1.01);
    transition: all 0.15s ease;
}

.project-card.featured {
    grid-column: span 2;
}

.project-card.compact .project-info {
    padding: var(--space-md);
}

.project-card.compact .project-info h3 {
    font-size: 1.125rem;
}

.project-card.compact .project-info p {
    font-size: 0.875rem;
}

.project-image {
    aspect-ratio: 16/10;
    overflow: hidden;
    position: relative;
}

.project-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.project-card:hover .project-image::after {
    opacity: 1;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.project-card:hover .project-placeholder {
    transform: scale(1.08);
}

/* Project Media Hover - Image to Video */
.project-media-hover {
    position: relative;
}

.project-media-hover .project-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.4s ease;
}

.project-media-hover .project-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.project-card:hover .project-media-hover .project-cover {
    opacity: 0;
}

.project-card:hover .project-media-hover .project-video {
    opacity: 1;
}

.project-info {
    padding: var(--space-lg);
}

.project-tags {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
}

.project-tags span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray-500);
    background: var(--color-gray-100);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-xl);
}

.project-info h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.project-info p {
    font-size: 0.9375rem;
    color: var(--color-gray-500);
    line-height: 1.5;
    margin-bottom: var(--space-md);
}

.project-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.8125rem;
}

.project-meta .role {
    color: var(--color-gray-400);
}

.project-meta .link {
    color: var(--color-accent);
    font-weight: 500;
}

/* ============================================
   About Section
   ============================================ */
.about {
    background: var(--color-gray-100);
    padding: var(--space-3xl) var(--container-padding);
}

.about-content {
    max-width: var(--container-width);
    margin: 0 auto;
}

.about .section-title {
    margin-bottom: var(--space-xl);
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.about-text {
    max-width: 700px;
}

.about-lead {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-black);
    line-height: 1.4;
    margin-bottom: var(--space-lg);
}

.about-text p {
    font-size: 1.0625rem;
    color: var(--color-gray-500);
    line-height: 1.65;
    margin-bottom: var(--space-xl);
}

.skills h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.skill-tags span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
    background: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    opacity: 0;
    transform: translateY(10px);
}

.skill-tags span.visible {
    opacity: 1;
    transform: translateY(0);
}

.skill-tags span:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(0, 113, 227, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.15);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.stat {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: all 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
    border: 1px solid var(--color-gray-200);
}

.stat.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.stat:nth-child(1) { transition-delay: 0.1s; }
.stat:nth-child(2) { transition-delay: 0.2s; }
.stat:nth-child(3) { transition-delay: 0.3s; }

.stat:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-weight: 500;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--space-2xl) var(--container-padding);
    text-align: center;
}

.footer-content {
    max-width: var(--container-width);
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-links a {
    color: var(--color-gray-300);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-links a svg {
    width: 24px;
    height: 24px;
}

.footer-links a:hover {
    color: var(--color-white);
    transform: translateY(-2px);
}

.footer-copyright {
    font-size: 0.8125rem;
    color: var(--color-gray-500);
}

/* ============================================
   Modal
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

.modal-content {
    position: relative;
    background: var(--color-white);
    width: 90%;
    max-width: 900px;
    max-height: 85vh;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: scale(0.9) translateY(40px);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.25);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-gray-500);
    background: var(--color-gray-100);
    border-radius: 50%;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-gray-200);
    color: var(--color-black);
}

.modal-body {
    padding: var(--space-xl);
    max-height: 85vh;
    overflow-y: auto;
}

.modal-header {
    margin-bottom: var(--space-xl);
}

.modal-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.modal-meta strong {
    color: var(--color-gray-700);
}

.modal-section {
    margin-bottom: var(--space-xl);
}

.modal-section h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: var(--space-md);
}

.modal-section p {
    font-size: 1rem;
    color: var(--color-gray-500);
    line-height: 1.65;
    margin-bottom: var(--space-md);
}

.modal-highlight {
    background: var(--color-gray-100);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-accent);
    margin: var(--space-lg) 0;
}

.modal-highlight p {
    margin: 0;
    color: var(--color-gray-700);
    font-weight: 500;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.modal-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--color-accent);
    font-weight: 500;
    padding: var(--space-sm) 0;
}

.modal-link:hover {
    text-decoration: underline;
}


/* ============================================
   Page Loader
   ============================================ */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-logo {
    margin-bottom: 1rem;
    animation: pulse 1.5s ease-in-out infinite;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader-logo img {
    height: 120px;
    width: auto;
    object-fit: contain;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.98); }
}

.loader-bar {
    width: 120px;
    height: 3px;
    background: var(--color-gray-200);
    border-radius: 3px;
    overflow: hidden;
    margin: 0 auto;
}

.loader-progress {
    height: 100%;
    background: var(--color-accent);
    border-radius: 3px;
    animation: loading 1.2s ease-in-out;
}

@keyframes loading {
    0% { width: 0; }
    100% { width: 100%; }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .project-card.featured {
        grid-column: span 1;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .about-stats {
        flex-direction: row;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }

    .nav {
        padding: 12px 16px;
    }

    .nav-pill {
        height: 44px;
        border-radius: 24px;
    }

    .nav-pill::after {
        border-radius: 23px;
    }

    .nav-pill-left {
        padding: 0 16px;
    }

    .nav-pill-right {
        padding: 0 4px;
    }

    .nav-links {
        gap: 2px;
    }

    .nav-links a:not(.nav-resume) {
        display: none;
    }

    .nav-logo img {
        height: 48px;
    }

    .nav-resume {
        padding: 8px 16px !important;
        border-radius: 18px;
    }

    .hero {
        padding: var(--space-2xl) var(--container-padding);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .project-grid {
        grid-template-columns: 1fr;
    }

    .project-grid.small {
        grid-template-columns: 1fr;
    }

    /* Disable scroll animations on mobile - show cards immediately */
    .project-card {
        opacity: 1;
        transform: none;
    }

    .section-title,
    .section-subtitle,
    .category-title {
        opacity: 1;
        transform: none;
    }

    .about-stats {
        flex-direction: column;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: var(--space-md);
    }

    .modal-content {
        width: 95%;
        max-height: 90vh;
        border-radius: var(--radius-lg);
    }

    .modal-header h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 16px;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-lead {
        font-size: 1.25rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.cli-font {
    font-family: 'IBM Plex Mono', 'Menlo', monospace;
    letter-spacing: -0.01em;
    font-weight: 400;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Selection color */
::selection {
    background: var(--color-accent);
    color: var(--color-white);
}

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

::-webkit-scrollbar-track {
    background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}