/* ============================================
   DURIN — SaaS Landing Page Styles
   ============================================ */

/* === CSS Variables === */
:root {
    --color-bg-primary: #09090b;
    --color-bg-secondary: #0c0c0f;
    --color-bg-tertiary: #131316;
    --color-bg-card: #111114;
    --color-bg-card-hover: #18181c;

    --color-text-primary: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-tertiary: #71717a;

    --color-accent: #8b5cf6;
    --color-accent-light: #a78bfa;
    --color-accent-dark: #7c3aed;

    --color-gradient-start: #8b5cf6;
    --color-gradient-end: #06b6d4;

    --color-border: #1f1f23;
    --color-border-light: #27272a;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s ease;

    --container-max: 1200px;
    --container-wide: 1400px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

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

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

/* === Container === */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.03em;
}

h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
}

h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 600;
}

h4 {
    font-size: 1.125rem;
    font-weight: 500;
}

p {
    color: var(--color-text-secondary);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 8px;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
    filter: brightness(1.1);
}

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

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent-light);
    transform: translateY(-2px);
    background: rgba(139, 92, 246, 0.05);
}

.btn-outline {
    background: transparent;
    color: var(--color-accent-light);
    border: 1px solid var(--color-accent-dark);
}

.btn-outline:hover {
    background: rgba(139, 92, 246, 0.1);
    border-color: var(--color-accent);
    color: var(--color-accent-light);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.125rem 3rem;
    font-size: 1rem;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    background: transparent;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-mark {
    color: var(--color-accent);
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.15em;
}

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

.nav-links a {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-text-primary);
}

.nav-cta {
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    color: white !important;
    border-radius: 6px;
    font-weight: 500 !important;
    box-shadow: 0 2px 10px rgba(139, 92, 246, 0.3);
}

.nav-cta:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-fast);
}

/* === Mobile Menu === */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.mobile-nav-links a {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.mobile-nav-links a:hover {
    color: var(--color-accent);
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(50, 50, 50, 0.5) 0%, transparent 70%),
        var(--color-bg-primary);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 8s infinite;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) scale(1);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-tagline {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.hero h1 {
    margin-bottom: var(--spacing-md);
}

.hero h1 .accent {
    color: var(--color-accent);
    font-style: italic;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    opacity: 0.5;
}

.scroll-indicator span {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.3;
        transform: scaleY(0.8);
    }
    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}

/* === Section Headers === */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* === Philosophy Section === */
.philosophy {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-secondary);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.philosophy-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.philosophy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.philosophy-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.card-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(6, 182, 212, 0.15));
    border-radius: 12px;
    padding: 12px;
    color: var(--color-accent-light);
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.philosophy-card h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.philosophy-card p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* === Process Section === */
.process {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-primary);
}

.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.process-line {
    position: absolute;
    left: 32px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--color-border-light), var(--color-border-light), transparent);
}

.process-step {
    position: relative;
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
}

.step-number {
    position: relative;
    z-index: 2;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border-light);
    border-radius: 50%;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent);
    flex-shrink: 0;
}

.step-content {
    padding-top: var(--spacing-xs);
}

.step-content h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.step-content > p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.step-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.step-details li {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    padding: 0.375rem 0.75rem;
    background: var(--color-bg-tertiary);
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

/* === Services Section === */
.services {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.service-card.featured {
    border-color: var(--color-accent-dark);
    background: linear-gradient(135deg, var(--color-bg-card) 0%, rgba(139, 92, 246, 0.08) 100%);
}

.service-card.featured:hover {
    border-color: var(--color-accent);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

.service-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.375rem 1rem;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 6px;
}

.service-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.service-card > p {
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.service-features {
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.service-features li {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    padding: 0.375rem 0;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    padding-left: 1rem;
}

.service-features li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
}

.service-features li:last-child {
    border-bottom: none;
}

.service-card .btn {
    align-self: flex-start;
    margin-top: auto;
}

/* === Portfolio Section === */
.portfolio {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-item {
    cursor: pointer;
}

.portfolio-image {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-base);
    border: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
}

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

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

.portfolio-item:hover .portfolio-image {
    transform: scale(1.02);
    border-color: var(--color-border-light);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 10, 10, 0.8) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.portfolio-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--color-text-tertiary);
}

.placeholder-icon {
    width: 48px;
    height: 48px;
    opacity: 0.3;
}

.placeholder-icon svg {
    width: 100%;
    height: 100%;
}

.portfolio-placeholder span:last-child {
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.portfolio-info h4 {
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.portfolio-info p {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* === Experience Section === */
.experience {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.experience::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.experience-content {
    position: relative;
    z-index: 2;
}

.experience-content .section-tag,
.experience-content h2 {
    text-align: center;
}

.experience-content h2 {
    margin-bottom: var(--spacing-lg);
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

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

.experience-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.2;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-display);
}

.experience-item h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.experience-item p {
    font-size: 0.9375rem;
    line-height: 1.8;
    max-width: 400px;
    margin: 0 auto;
}

/* === CTA Section === */
.cta {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at center, rgba(139, 92, 246, 0.12) 0%, transparent 60%),
        var(--color-bg-primary);
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-tagline {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.cta h2 {
    margin-bottom: var(--spacing-sm);
}

.cta-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.cta-content .btn {
    margin-bottom: var(--spacing-sm);
}

.cta-note {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* === Footer === */
.footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-col h4 {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-col a {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
}

.footer-credit {
    font-style: italic;
    color: var(--color-text-tertiary) !important;
}

/* === Animations === */
.fade-in,
.fade-in-up,
.fade-in-left,
.fade-in-right {
    opacity: 0;
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.fade-in.visible {
    opacity: 1;
    transform: none;
}

.fade-in-up {
    transform: translateY(30px);
}

.fade-in-up.visible {
    opacity: 1;
    transform: none;
}

.fade-in-left {
    transform: translateX(-30px);
}

.fade-in-left.visible {
    opacity: 1;
    transform: none;
}

.fade-in-right {
    transform: translateX(30px);
}

.fade-in-right.visible {
    opacity: 1;
    transform: none;
}

.delay-1 {
    transition-delay: 0.15s;
}

.delay-2 {
    transition-delay: 0.3s;
}

.delay-3 {
    transition-delay: 0.45s;
}

/* === Login Page === */
.login-page {
    background: var(--color-bg-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Override fade-in for login page so it's visible immediately */
.login-page .fade-in {
    opacity: 1;
    transform: none;
}

.login-bg {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
        var(--color-bg-primary);
}

.login-bg-overlay {
    position: absolute;
    inset: 0;
    background: 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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}

.login-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.login-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 480px;
    padding: var(--spacing-md);
}

.login-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-lg) var(--spacing-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
    transition: opacity var(--transition-fast);
}

.login-logo:hover {
    opacity: 0.8;
}

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

.login-content h1 {
    margin-bottom: var(--spacing-xs);
}

.login-subtitle {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-group {
    text-align: left;
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    transition: all var(--transition-base);
    outline: none;
}

.form-input::placeholder {
    color: var(--color-text-tertiary);
}

.form-input:focus {
    border-color: var(--color-accent);
    background: var(--color-bg-card);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.password-input-wrapper {
    position: relative;
}

.password-input-wrapper .form-input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    color: var(--color-text-secondary);
}

.password-toggle svg {
    width: 20px;
    height: 20px;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-xs);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 1px solid var(--color-border-light);
    border-radius: 4px;
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    border-color: var(--color-accent);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid var(--color-bg-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.forgot-link {
    font-size: 0.875rem;
    color: var(--color-accent);
    transition: color var(--transition-fast);
}

.forgot-link:hover {
    color: var(--color-accent-light);
}

.btn-login {
    width: 100%;
    margin-top: var(--spacing-sm);
    position: relative;
}

.btn-loader {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(10, 10, 10, 0.2);
    border-top-color: var(--color-bg-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.login-divider {
    position: relative;
    text-align: center;
    margin: var(--spacing-md) 0;
}

.login-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-border);
}

.login-divider span {
    position: relative;
    background: var(--color-bg-card);
    padding: 0 var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
}

.social-login {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.btn-social {
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all var(--transition-base);
}

.btn-social:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
    transform: translateY(-2px);
}

.btn-google svg {
    flex-shrink: 0;
}

.btn-github {
    color: var(--color-text-primary);
}

.signup-link {
    text-align: center;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-md);
}

.signup-link a {
    color: var(--color-accent);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.signup-link a:hover {
    color: var(--color-accent-light);
}

.terms-link {
    color: var(--color-accent-light);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.terms-link:hover {
    color: var(--color-accent);
}

/* === Responsive Design === */
@media (max-width: 1024px) {
    :root {
        --spacing-xl: 5rem;
        --spacing-2xl: 6rem;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
        --spacing-2xl: 5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero {
        min-height: 100svh;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
    }
    
    .process-line {
        left: 24px;
    }
    
    .step-number {
        width: 48px;
        height: 48px;
        font-size: 0.875rem;
    }
    
    .process-step {
        gap: var(--spacing-sm);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .experience-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .philosophy-card,
    .service-card {
        padding: var(--spacing-sm);
    }
    
    .step-details {
        flex-direction: column;
    }
    
    .step-details li {
        width: fit-content;
    }
}

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

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-dark);
}

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

::-moz-selection {
    background: var(--color-accent);
    color: white;
}