/* ============================================================
   DPK — PROFESSIONAL PORTFOLIO WEBSITE
   Premium Dark Theme | Glassmorphism | Modern Typography
   ============================================================ */

/* ============ CUSTOM PROPERTIES ============ */
:root {
    /* Core Palette */
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.6);
    --bg-glass: rgba(17, 24, 39, 0.4);

    /* Accent */
    --accent: #64ffda;
    --accent-dim: rgba(100, 255, 218, 0.15);
    --accent-glow: rgba(100, 255, 218, 0.25);
    --blue: #5b9cf5;
    --blue-dim: rgba(91, 156, 245, 0.15);

    /* Text */
    --text-primary: #e6f1ff;
    --text-secondary: #8892b0;
    --text-muted: #495670;

    /* Borders */
    --border: rgba(100, 255, 218, 0.1);
    --border-hover: rgba(100, 255, 218, 0.3);

    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --section-padding: 7rem 0;
    --container-max: 1200px;

    /* Effects */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 60px rgba(0, 0, 0, 0.4);
    --glow: 0 0 40px rgba(100, 255, 218, 0.15);
}

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

button {
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============ LAYOUT ============ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: var(--section-padding);
    position: relative;
}

/* ============ SECTION HEADERS ============ */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent);
    padding: 0.4rem 1.2rem;
    background: var(--accent-dim);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 100px;
    margin-bottom: 1.2rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin: 0 auto;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    padding: 0.7rem 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    z-index: 1001;
}

.logo-svg {
    width: 40px;
    height: 40px;
    transition: transform var(--transition);
}

.nav-logo:hover .logo-svg {
    transform: rotate(-5deg) scale(1.05);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}

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

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

.nav-cta-link {
    padding: 0.5rem 1.2rem;
    background: var(--accent-dim);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 100px;
    color: var(--accent) !important;
    transition: all var(--transition);
}

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

.nav-cta-link:hover {
    background: rgba(100, 255, 218, 0.25);
    border-color: var(--accent);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
    transform-origin: center;
}

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

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

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

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

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

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(100, 255, 218, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(100, 255, 218, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    animation: glowPulse 8s ease-in-out infinite alternate;
}

.hero-glow--1 {
    width: 600px;
    height: 600px;
    background: rgba(100, 255, 218, 0.15);
    top: -200px;
    right: -100px;
}

.hero-glow--2 {
    width: 500px;
    height: 500px;
    background: rgba(91, 156, 245, 0.12);
    bottom: -200px;
    left: -100px;
    animation-delay: -4s;
}

@keyframes glowPulse {
    0% { opacity: 0.3; transform: scale(1); }
    100% { opacity: 0.5; transform: scale(1.15); }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 2rem 1.5rem;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-dim);
    border: 1px solid rgba(100, 255, 218, 0.2);
    border-radius: 100px;
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease both;
}

.hero-badge i {
    font-size: 0.75rem;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 620px;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
    animation: fadeInUp 0.8s ease 0.3s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.8rem;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 100px;
    border: none;
    transition: all var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #4fd1c5);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(100, 255, 218, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(100, 255, 218, 0.35);
}

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

.btn-ghost:hover {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    animation: fadeInUp 0.8s ease 0.45s both;
}

.stat-pill {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--border-hover);
    border-radius: 100px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.scroll-indicator span {
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 100px;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(12px); opacity: 0.3; }
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services {
    background: var(--bg-primary);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

/* 2-column large service cards */
.services-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.service-card-large {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    transition: all var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.service-card-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--blue));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.service-card-large:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--glow);
}

.service-card-large:hover::before {
    transform: scaleX(1);
}

.service-icon-lg {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    transition: all var(--transition);
}

.service-card-large:hover .service-icon-lg {
    background: rgba(100, 255, 218, 0.25);
    transform: scale(1.05);
}

.service-icon-lg i {
    font-size: 1.6rem;
    color: var(--accent);
}

.service-card-large h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

.service-card-large p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.service-features li i {
    color: var(--accent);
    font-size: 0.7rem;
    flex-shrink: 0;
}

/* Old 4-col grid kept for potential reuse */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* ============================================================
   PORTFOLIO SECTION
   ============================================================ */
.portfolio {
    background: var(--bg-secondary);
    position: relative;
}

.portfolio::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-slow);
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), var(--glow);
}

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

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

.project-card:hover .project-image img {
    transform: scale(1.02);
}

.project-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.project-type {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.35rem 0.9rem;
    background: rgba(10, 15, 26, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--accent);
}

.project-info {
    padding: 1.5rem 1.8rem 1.8rem;
}

.project-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.6rem;
}

.project-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.2rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    transition: all var(--transition);
}

.project-link i {
    font-size: 0.7rem;
    transition: transform var(--transition);
}

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

.project-link:hover i {
    transform: translate(3px, -3px);
}

/* Upcoming / Status badges */
.status-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-pill--soon {
    background: var(--bg-primary);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.project-footer {
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ============================================================
   APPROACH SECTION
   ============================================================ */
.approach {
    background: var(--bg-primary);
    position: relative;
}

.approach::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.approach-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.approach-steps {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.step-card {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    backdrop-filter: blur(10px);
}

.step-card:hover {
    border-color: var(--border-hover);
    transform: translateX(6px);
}

.step-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    opacity: 0.4;
    line-height: 1;
    min-width: 40px;
}

.step-card:hover .step-number {
    opacity: 1;
}

.step-content h3 {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
}

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

/* Highlight Card */
.highlight-card {
    background: var(--bg-card);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 100px;
}

.highlight-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--blue));
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.highlight-icon i {
    font-size: 1.6rem;
    color: var(--bg-primary);
}

.highlight-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
}

.highlight-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.highlight-list li {
    display: flex;
    gap: 0.8rem;
    align-items: flex-start;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.highlight-list li i {
    color: var(--accent);
    font-size: 0.75rem;
    margin-top: 0.35rem;
    flex-shrink: 0;
}

.highlight-list li strong {
    color: var(--text-primary);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact {
    background: var(--bg-secondary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.contact-info-side {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.contact-card:hover {
    border-color: var(--border-hover);
}

.contact-card-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.contact-card-icon i {
    color: var(--accent);
    font-size: 1rem;
}

.contact-card h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.contact-card p,
.contact-card a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.contact-card a:hover {
    color: var(--accent);
}

.contact-socials {
    display: flex;
    gap: 0.8rem;
    margin-top: 0.5rem;
}

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

.social-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-dim);
    transform: translateY(-3px);
}

/* Contact Options Styles */
.contact-options-centered {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 3rem auto 0;
}

.contact-method-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 3rem 2rem;
    text-align: center;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-method-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.contact-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.contact-card-icon.whatsapp {
    background: rgba(37, 211, 102, 0.15);
    color: #25d366;
}

.contact-card-icon.email {
    background: rgba(100, 255, 218, 0.15);
    color: var(--accent);
}

.contact-method-card h4 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.contact-method-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.contact-method-card .btn {
    margin-top: auto;
    width: 100%;
}

.btn-whatsapp {
    background: #25d366;
    color: #000;
    font-weight: 700;
}

.btn-whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.2);
}


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--bg-primary);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-logo-svg {
    width: 40px;
    height: 40px;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 260px;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 1.2rem;
}

.footer-links li {
    margin-bottom: 0.65rem;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================================
   ANIMATIONS (scroll-reveal)
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stagger delay utility (applied via JS) */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid-2 {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .approach-content {
        grid-template-columns: 1fr;
    }

    .highlight-card {
        position: static;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 5rem 0;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(10, 15, 26, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: right var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        font-size: 1.2rem;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-divider {
        width: 60px;
        height: 1px;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .services-grid,
    .services-grid-2 {
        grid-template-columns: 1fr;
    }

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

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 2rem 1rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

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

    /* Hero stats stack handled at 768px */

    .contact-form {
        padding: 1.5rem;
    }

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