/* ========================================
   CIO Code — Professional Website Styles
   ======================================== */

/* --- Skip Link (Accessibility) --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 9999;
    background: var(--accent);
    color: #fff;
    padding: 12px 24px;
    border-radius: 0 0 8px 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);

    --text-primary: #f0f0f5;
    --text-secondary: #9494a8;
    --text-muted: #6b6b80;

    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-dark: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --accent-glow-strong: rgba(99, 102, 241, 0.3);

    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(168,85,247,0.1));

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    font-size: 16px;
    text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

/* Reduce motion for accessibility */
@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; }
    [data-reveal] { opacity: 1; transform: none; }
    .animate-in { opacity: 1; transform: none; animation: none; }
}

/* Print styles */
@media print {
    .nav, .hero__bg, .hero__scroll, .service-card__glow,
    .cta-box__bg, .btn { display: none !important; }
    body { background: #fff; color: #000; }
    .section-title, h1, h2, h3, h4 { color: #000; }
    a { color: #000; text-decoration: underline; }
}

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

ul { list-style: none; }

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* --- Section Header --- */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-light);
    background: var(--accent-glow);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-title--left { text-align: left; }

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    min-height: 48px; /* WCAG touch target */
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn--primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

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

.btn--outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-light);
    color: var(--accent-light);
}

.btn--lg { padding: 18px 36px; font-size: 1.05rem; }
.btn--full { width: 100%; justify-content: center; }

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.nav--scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.nav__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.3rem;
}

.nav__logo-icon {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-light);
    background: var(--accent-glow);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__links a {
    padding: 8px 16px;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.nav__links a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav__cta {
    background: var(--accent-glow) !important;
    color: var(--accent-light) !important;
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md) !important;
}

.nav__cta:hover {
    background: rgba(99, 102, 241, 0.25) !important;
}

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 12px;
    min-width: 48px;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.nav__burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 20%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 20%, transparent 100%);
}

.hero__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
}

.hero__glow--1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: 10%;
    left: 20%;
    animation: float 8s ease-in-out infinite;
}

.hero__glow--2 {
    width: 400px;
    height: 400px;
    background: #a855f7;
    bottom: 10%;
    right: 20%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero__container {
    position: relative;
    text-align: center;
    max-width: 800px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.hero__badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero__title-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1;
}

.hero__stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.hero__scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
}

.hero__scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent-light), transparent);
    animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
    0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
    50.01% { transform-origin: bottom; }
    100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* --- Animate in --- */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.25s; }
.animate-in:nth-child(3) { animation-delay: 0.4s; }
.animate-in:nth-child(4) { animation-delay: 0.55s; }
.animate-in:nth-child(5) { animation-delay: 0.7s; }

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

/* ===== SERVICES ===== */
.services {
    padding: 120px 0;
    position: relative;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition);
    overflow: hidden;
}

.service-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

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

.service-card__glow {
    position: absolute;
    top: -100px;
    right: -100px;
    width: 250px;
    height: 250px;
    background: var(--accent-glow);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0;
    transition: var(--transition-slow);
    pointer-events: none;
}

.service-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--accent-glow);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    color: var(--accent-light);
    margin-bottom: 24px;
}

.service-card__title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card__desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-card__list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-card__list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.service-card__list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-light);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ===== ABOUT ===== */
.about {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about__text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 16px;
    line-height: 1.8;
}

.about__values {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}

.about__value {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.about__value-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--accent-glow);
    border-radius: var(--radius-md);
    color: var(--accent-light);
    flex-shrink: 0;
}

.about__value h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.about__value p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Code Window */
.about__code-window {
    background: #1a1a2e;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.about__code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border);
}

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

.dot--red { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green { background: #28c840; }

.about__code-title {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.about__code-body {
    padding: 24px;
    overflow-x: auto;
}

.about__code-body pre {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.8;
}

.code-purple { color: #c084fc; }
.code-blue { color: #60a5fa; }
.code-green { color: #4ade80; }
.code-orange { color: #fb923c; }

/* Spin animation for loading state */
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== PROCESS ===== */
.process {
    padding: 120px 0;
}

.process__timeline {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

.process__timeline::before {
    content: '';
    position: absolute;
    left: 36px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-glow), transparent);
}

.process__step {
    display: flex;
    gap: 32px;
    padding: 32px 0;
    position: relative;
}

.process__number {
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-light);
    background: var(--bg-primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    z-index: 1;
}

.process__content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    margin-top: 8px;
}

.process__content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== PORTFOLIO ===== */
.portfolio {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.portfolio__card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.portfolio__card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.portfolio__card-image {
    height: 240px;
    position: relative;
    overflow: hidden;
}

.portfolio__card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio__card:hover .portfolio__card-image img {
    transform: scale(1.08);
}

.portfolio__card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 100%);
    z-index: 1;
}

.portfolio__card-tag {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
}

.portfolio__card-info {
    padding: 24px;
}

.portfolio__card-info h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.portfolio__card-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== TESTIMONIALS ===== */
.testimonials {
    padding: 120px 0;
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.testimonial-card__stars {
    display: flex;
    gap: 4px;
    color: #fbbf24;
    margin-bottom: 20px;
}

.testimonial-card__text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-card__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: #fff;
    flex-shrink: 0;
}

.testimonial-card__author strong {
    display: block;
    font-size: 0.9rem;
}

.testimonial-card__author span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: 40px 0 120px;
}

.cta-box {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 80px 40px;
    text-align: center;
    overflow: hidden;
}

.cta-box__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cta-box__glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: var(--accent-glow-strong);
    border-radius: 50%;
    filter: blur(100px);
}

.cta-box h2 {
    position: relative;
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-box p {
    position: relative;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

.cta-box .btn {
    position: relative;
}

/* ===== CONTACT ===== */
.contact {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact__text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact__detail {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact__detail-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--accent-glow);
    border-radius: var(--radius-md);
    color: var(--accent-light);
    flex-shrink: 0;
}

.contact__detail span {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.contact__detail a,
.contact__detail p {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

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

/* Form */
.contact__form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236b6b80' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== FOOTER ===== */
.footer {
    padding: 64px 0 0;
    border-top: 1px solid var(--border);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer__brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 16px;
    line-height: 1.7;
    max-width: 320px;
}

.footer__links h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.footer__bottom {
    border-top: 1px solid var(--border);
    padding: 24px 0;
    text-align: center;
}

.footer__bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== SCROLL REVEAL ===== */
[data-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== RESPONSIVE ===== */

/* Tablet */
@media (max-width: 1024px) {
    .services__grid {
        grid-template-columns: 1fr;
    }

    .about__grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

    .contact__grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .nav__links {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(280px, 80vw);
        height: 100dvh;
        background: var(--bg-secondary);
        border-left: 1px solid var(--border);
        flex-direction: column;
        padding: 80px 24px calc(24px + env(safe-area-inset-bottom));
        padding-top: calc(80px + env(safe-area-inset-top));
        gap: 4px;
        transition: var(--transition);
        z-index: 999;
        overscroll-behavior: contain;
        overflow-y: auto;
    }

    .nav__links.open {
        right: 0;
    }

    .nav__links a {
        width: 100%;
        padding: 14px 16px;
        font-size: 1rem;
        min-height: 48px;
        display: flex;
        align-items: center;
    }

    .nav__burger {
        display: flex;
        z-index: 1001;
    }

    .nav__burger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav__burger.active span:nth-child(2) {
        opacity: 0;
    }

    .nav__burger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        min-height: 100dvh;
        padding: 100px 16px 60px;
    }

    .hero__title {
        font-size: clamp(1.8rem, 8vw, 3rem);
    }

    .hero__subtitle {
        font-size: 1rem;
        margin-bottom: 32px;
    }

    .hero__stats {
        gap: 24px;
    }

    .hero__stat-number {
        font-size: 1.8rem;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: clamp(1.6rem, 5vw, 2.2rem);
    }

    .services,
    .about,
    .process,
    .portfolio,
    .testimonials,
    .contact {
        padding: 80px 0;
    }

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

    .portfolio__card-image {
        height: 200px;
    }

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

    .process__step {
        gap: 20px;
        padding: 24px 0;
    }

    .process__number {
        width: 56px;
        height: 56px;
        font-size: 1rem;
    }

    .process__timeline::before {
        left: 28px;
    }

    .process__content h3 {
        margin-top: 4px;
        font-size: 1.1rem;
    }

    .cta-box {
        padding: 48px 20px;
    }

    .cta-section {
        padding: 20px 0 80px;
    }

    .contact__form-wrapper {
        padding: 24px;
    }

    .service-card {
        padding: 24px;
    }

    .about__code-body {
        padding: 16px;
    }

    .about__code-body pre {
        font-size: 0.75rem;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer__bottom {
        padding: calc(24px + env(safe-area-inset-bottom)) 0 env(safe-area-inset-bottom);
    }
}

/* Small phones */
@media (max-width: 480px) {
    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
        justify-content: center;
    }

    .hero__badge {
        font-size: 0.75rem;
        padding: 6px 14px;
    }

    .hero__stats {
        flex-direction: column;
        gap: 20px;
    }

    .contact__detail {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

/* Landscape phones */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 80px 24px 40px;
    }

    .hero__stats {
        display: none;
    }

    .hero__scroll {
        display: none;
    }
}

/* High DPI displays — ensure crisp rendering */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .about__code-window {
        border-width: 0.5px;
    }
}

/* Hover only on devices that support it */
@media (hover: none) {
    .service-card:hover {
        transform: none;
    }

    .portfolio__card:hover {
        transform: none;
    }

    .portfolio__card:hover .portfolio__card-image img {
        transform: none;
    }

    .testimonial-card:hover {
        transform: none;
    }

    .btn--primary:hover {
        transform: none;
    }
}

/* Focus-visible for keyboard accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent-light);
    outline-offset: 2px;
}