/* ===========================
   Award-Winning Portfolio CSS
   Kenny Jacobs Design System
   =========================== */

/* ===========================
   CSS Variables
   =========================== */
:root {
    /* Primary Brand Colors */
    --blue-primary: #0096FF;
    --blue-secondary: #0F52BA;

    /* Color System */
    --color-bg: #000000;
    --color-bg-alt: #0a0a0f;
    --color-surface: rgba(255, 255, 255, 0.02);
    --color-surface-hover: rgba(255, 255, 255, 0.04);
    --color-border: rgba(0, 150, 255, 0.15);

    /* Text Colors */
    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.65);
    --color-text-tertiary: rgba(255, 255, 255, 0.4);

    /* Accent & Effects */
    --gradient-primary: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-secondary) 100%);
    --gradient-mesh: radial-gradient(at 0% 0%, rgba(0, 150, 255, 0.2) 0px, transparent 50%),
                     radial-gradient(at 100% 0%, rgba(15, 82, 186, 0.15) 0px, transparent 50%),
                     radial-gradient(at 100% 100%, rgba(0, 150, 255, 0.1) 0px, transparent 50%),
                     radial-gradient(at 0% 100%, rgba(15, 82, 186, 0.2) 0px, transparent 50%);

    /* Shadows & Glows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.3);
    --glow-blue: 0 0 40px rgba(0, 150, 255, 0.4);
    --glow-blue-strong: 0 0 60px rgba(0, 150, 255, 0.6);

    /* Spacing System */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    cursor: none;
}

::selection {
    background: var(--blue-primary);
    color: white;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: none;
}

.desktop-only {
    display: inline;
}

@media (max-width: 768px) {
    .desktop-only {
        display: none;
    }
}

/* ===========================
   Custom Cursor
   =========================== */
.cursor,
.cursor-follower {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
}

.cursor {
    width: 8px;
    height: 8px;
    background: var(--blue-primary);
    transform: translate(-50%, -50%);
}

.cursor-follower {
    width: 32px;
    height: 32px;
    border: 2px solid var(--blue-primary);
    transform: translate(-50%, -50%) scale(1);
    transition: transform var(--transition-fast), width var(--transition-fast), height var(--transition-fast);
}

body:hover .cursor-follower {
    transform: translate(-50%, -50%) scale(1.5);
}

@media (max-width: 1024px) {
    .cursor,
    .cursor-follower {
        display: none;
    }

    body {
        cursor: auto;
    }

    button, a {
        cursor: pointer;
    }
}

/* ===========================
   Background & Canvas
   =========================== */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--color-bg);
}

#gradient-canvas {
    width: 100%;
    height: 100%;
    opacity: 0.6;
}

.noise-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.5' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.025'/%3E%3C/svg%3E");
    pointer-events: none;
}

/* ===========================
   Container
   =========================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: fixed;
    top: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: calc(100% - var(--space-lg) * 2);
    max-width: 1200px;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.navbar.scrolled .nav-wrapper {
    background: rgba(0, 0, 0, 0.8);
    box-shadow: var(--shadow-lg), var(--glow-blue);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 700;
    font-size: var(--font-size-lg);
    transition: transform var(--transition-fast);
}

.nav-logo:hover {
    transform: scale(1.05);
}

.logo-dot {
    width: 8px;
    height: 8px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: var(--glow-blue);
}

.nav-links {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav-link {
    position: relative;
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    color: var(--color-text-secondary);
}

.nav-link::before {
    content: attr(data-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.nav-link:hover {
    color: transparent;
}

.nav-link:hover::before {
    opacity: 1;
}

.nav-link-cta {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--glow-blue);
}

.nav-link-cta::before {
    display: none;
}

.nav-link-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-blue-strong);
    color: white;
}

@media (max-width: 768px) {
    .navbar {
        top: var(--space-md);
        width: calc(100% - var(--space-md) * 2);
    }

    .nav-wrapper {
        padding: var(--space-xs) var(--space-sm);
    }

    .nav-link {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--font-size-xs);
    }
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--space-4xl) 0 var(--space-3xl);
}

.hero-container {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    50% {
        opacity: 0.8;
        box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
    }
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.03em;
}

.title-line {
    display: block;
}

.word {
    display: inline-block;
    margin-right: 0.3em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(0, 150, 255, 0.5));
}

.hero-description {
    font-size: clamp(var(--font-size-lg), 2vw, var(--font-size-xl));
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--blue-primary), transparent);
    animation: scrollLine 2s infinite;
}

.scroll-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@keyframes scrollLine {
    0%, 100% {
        opacity: 0;
        transform: translateY(-20px);
    }
    50% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md), var(--glow-blue);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), var(--glow-blue-strong);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--font-size-lg);
}

.btn-icon {
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ===========================
   Filter Section
   =========================== */
.filter-section {
    padding: var(--space-3xl) 0 var(--space-xl);
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.filter-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
}

.filter-tabs {
    display: flex;
    gap: var(--space-sm);
    background: var(--color-surface);
    padding: var(--space-xs);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
}

.filter-tab {
    padding: var(--space-xs) var(--space-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
}

.filter-tab:hover {
    color: var(--color-text);
    background: var(--color-surface-hover);
}

.filter-tab.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--glow-blue);
}

@media (max-width: 768px) {
    .filter-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-tabs {
        width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
    }
}

/* ===========================
   Bento Grid
   =========================== */
.projects-section {
    padding: var(--space-xl) 0 var(--space-3xl);
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    grid-auto-rows: 300px;
}

.bento-item {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    transition: all var(--transition-slow);
}

.bento-item.featured {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-item.wide {
    grid-column: span 2;
}

.bento-item.tall {
    grid-row: span 2;
}

.bento-item:hover {
    transform: translateY(-8px);
    border-color: var(--blue-primary);
    box-shadow: var(--shadow-xl), var(--glow-blue-strong);
}

.bento-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.bento-image {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.bento-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.bento-item:hover .bento-image img {
    transform: scale(1.05);
}

.bento-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 150, 255, 0.9), rgba(15, 82, 186, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.bento-item:hover .bento-overlay {
    opacity: 1;
}

.view-icon {
    font-size: var(--font-size-4xl);
    color: white;
    transform: rotate(-45deg);
    transition: transform var(--transition-base);
}

.bento-item:hover .view-icon {
    transform: rotate(0deg);
}

.bento-content {
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
}

.bento-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--space-sm);
}

.bento-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.bento-tags {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(0, 150, 255, 0.2);
    border: 1px solid rgba(0, 150, 255, 0.4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--blue-primary);
}

.bento-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Bento Grid Responsive */
@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 400px;
    }

    .bento-item.featured,
    .bento-item.wide,
    .bento-item.tall {
        grid-column: span 1;
        grid-row: span 1;
    }
}

/* ===========================
   About Section
   =========================== */
.about-section {
    padding: var(--space-3xl) 0;
    background: var(--color-bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--blue-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-4xl));
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

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

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    font-size: var(--font-size-lg);
    line-height: 1.7;
}

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

.capability {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.capability:hover {
    border-color: var(--blue-primary);
    background: var(--color-surface-hover);
    transform: translateX(8px);
}

.capability-icon {
    font-size: var(--font-size-3xl);
}

.capability-title {
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.capability-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.visual-card {
    padding: var(--space-2xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
}

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

.visual-stat {
    text-align: center;
    padding: var(--space-lg);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
}

.visual-stat-value {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.visual-stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
    padding: var(--space-4xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 800;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.cta-description {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.cta-buttons {
    margin-bottom: var(--space-xl);
}

.cta-links {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    align-items: center;
}

.cta-link {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.cta-link:hover {
    color: var(--blue-primary);
}

.cta-divider {
    color: var(--color-text-tertiary);
}

/* ===========================
   Footer
   =========================== */
.footer {
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

.footer-right p {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }
}

/* ===========================
   Scroll Animations
   =========================== */
[data-scroll] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-scroll].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   Filter Animations
   =========================== */
.bento-item.hide {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.bento-item.show {
    opacity: 1;
    transform: scale(1);
}