/* ============================================
   AZRYNO PORTFOLIO - PREMIUM DARK THEME CSS
   ============================================ */

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

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --bg-card: #0d0d0d;
    --bg-card-hover: #141414;
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-border: rgba(255, 255, 255, 0.06);

    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-tertiary: #666666;
    --text-muted: #444444;

    --accent-primary: #7c3aed;
    --accent-secondary: #a855f7;
    --accent-tertiary: #c084fc;
    --accent-glow: rgba(124, 58, 237, 0.15);
    --accent-glow-strong: rgba(124, 58, 237, 0.3);

    --gradient-primary: linear-gradient(135deg, #7c3aed, #a855f7, #c084fc);
    --gradient-bg: linear-gradient(135deg, #7c3aed 0%, #6d28d9 50%, #4c1d95 100%);
    --gradient-text: linear-gradient(135deg, #a855f7, #c084fc, #e9d5ff);
    --gradient-dark: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(124, 58, 237, 0.3);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.2);
    --shadow-glow-strong: 0 0 60px rgba(124, 58, 237, 0.3);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

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

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);

    --nav-height: 80px;
    --container-max: 1280px;
    --container-padding: 24px;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

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

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

::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

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

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

/* === REVEAL ANIMATION === */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger children */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.15s; }
.reveal:nth-child(4) { transition-delay: 0.2s; }
.reveal:nth-child(5) { transition-delay: 0.25s; }
.reveal:nth-child(6) { transition-delay: 0.3s; }

/* === SECTION COMMON === */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-tertiary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-bg);
    color: white;
    border: none;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong), var(--shadow-md);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-tertiary);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 18px 42px;
    font-size: 1.05rem;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
}

.logo-az {
    background: var(--gradient-bg);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
}

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

.nav-links li a {
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    position: relative;
}

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

.nav-links li a.active-link {
    color: var(--accent-tertiary);
    background: var(--accent-glow);
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

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

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.nav-toggle.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;
    padding: 120px var(--container-padding) 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 58, 237, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 50%, rgba(168, 85, 247, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 60% 50% at 20% 50%, rgba(124, 58, 237, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 40% 40% at 50% 100%, rgba(76, 29, 149, 0.08) 0%, transparent 50%);
    animation: heroGradientPulse 8s ease-in-out infinite alternate;
}

@keyframes heroGradientPulse {
    0% { opacity: 0.8; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.05); }
}

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

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

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% {
        opacity: 0;
        transform: translateY(-20vh) scale(1);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: dotPulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 28px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    padding: 32px 40px;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-plus {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-secondary);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 4px;
    font-weight: 500;
}

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

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-dot {
    width: 3px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

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

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

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text {
    padding-right: 20px;
}

.about-lead {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.about-body {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

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

.service-card {
    padding: 28px 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--gradient-primary);
    transition: height var(--transition-smooth);
    border-radius: 0 2px 2px 0;
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    transform: translateX(4px);
    box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
    height: 100%;
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-sm);
    color: var(--accent-tertiary);
    margin-bottom: 16px;
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

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

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

/* Filter Buttons */
.portfolio-filter {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.filter-btn {
    padding: 10px 24px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    background: transparent;
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
    background: rgba(255, 255, 255, 0.03);
}

.filter-btn.active {
    color: white;
    background: var(--gradient-bg);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.portfolio-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-smooth);
    position: relative;
}

.portfolio-card.hidden {
    display: none;
}

.portfolio-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--bg-tertiary);
}

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

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

.card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--gradient-bg);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-glow);
}

.card-link:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow-strong);
}

.card-info {
    padding: 18px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-info h3 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.card-tag {
    font-size: 0.75rem;
    color: var(--accent-tertiary);
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-weight: 500;
    white-space: nowrap;
}

/* ============================================
   SYSTEMS SECTION
   ============================================ */
.systems {
    padding: 120px 0;
    position: relative;
    background: var(--bg-secondary);
}

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

.systems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.system-card {
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-smooth);
    position: relative;
}

.system-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.system-card:hover::before {
    opacity: 0.3;
}

.system-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    margin: 20px 24px 0;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.system-image {
    position: relative;
    margin: 16px 24px;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--bg-tertiary);
}

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

.system-card:hover .system-image img {
    transform: scale(1.03);
}

.system-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.system-card:hover .system-glow {
    opacity: 1;
}

.system-info {
    padding: 8px 24px 28px;
}

.system-info h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.system-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

/* Systems Note */
.systems-note {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px 28px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
}

.systems-note svg {
    flex-shrink: 0;
    color: var(--accent-secondary);
    margin-top: 2px;
}

.systems-note p {
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    position: relative;
    padding: 140px 0;
    overflow: hidden;
    background: var(--bg-primary);
}

.cta-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 50%, rgba(124, 58, 237, 0.1) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 30% 30%, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse 40% 40% at 70% 70%, rgba(76, 29, 149, 0.05) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.cta-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-secondary);
    padding: 80px 0 0;
    position: relative;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--border-subtle);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: center;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--accent-glow);
    border-color: var(--border-accent);
    color: var(--accent-tertiary);
    transform: translateY(-2px);
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links ul li a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links ul li a:hover {
    color: var(--accent-tertiary);
    transform: translateX(4px);
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 24px;
}

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

.footer-contact ul li svg {
    color: var(--accent-secondary);
    flex-shrink: 0;
}

.footer-contact ul li a {
    color: var(--text-secondary);
}

.footer-contact ul li a:hover {
    color: var(--accent-tertiary);
}

.footer-main-btn {
    margin-top: 4px;
}

.footer-bottom {
    padding: 28px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.footer-bottom a {
    color: var(--accent-tertiary);
    font-weight: 600;
}

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

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-base);
    animation: whatsappPulse 3s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
    animation: none;
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 10px rgba(37, 211, 102, 0.1); }
}

.whatsapp-tooltip {
    position: absolute;
    right: 72px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid var(--bg-tertiary);
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

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

/* Large Tablets */
@media (max-width: 1024px) {
    :root {
        --container-padding: 20px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-text {
        padding-right: 0;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .systems-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

/* Tablets */
@media (max-width: 768px) {
    :root {
        --nav-height: 70px;
        --container-padding: 16px;
    }

    /* Mobile Nav */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 4px;
        padding: 40px;
        transition: right var(--transition-smooth);
        border-left: 1px solid var(--border-subtle);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links li a {
        font-size: 1.1rem;
        padding: 14px 20px;
        width: 100%;
        display: block;
        border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
        background: rgba(255, 255, 255, 0.05);
    }

    /* Hero */
    .hero {
        padding: 100px var(--container-padding) 60px;
        min-height: 100svh;
    }

    .hero-title {
        font-size: clamp(2rem, 9vw, 3.5rem);
    }

    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 32px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 48px;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 320px;
    }

    .hero-stats {
        gap: 24px;
        padding: 24px 28px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .stat-divider {
        display: none;
    }

    .stat-number, .stat-plus {
        font-size: 1.8rem;
    }

    .hero-scroll {
        display: none;
    }

    /* Sections */
    .about,
    .portfolio,
    .systems,
    .cta-section {
        padding: 80px 0;
    }

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

    .section-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }

    /* Portfolio */
    .portfolio-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .card-info {
        padding: 14px 16px;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .card-info h3 {
        font-size: 0.85rem;
    }

    /* Systems */
    .system-badge {
        margin: 16px 16px 0;
        font-size: 0.7rem;
    }

    .system-image {
        margin: 12px 16px;
    }

    .system-info {
        padding: 4px 16px 24px;
    }

    .system-info h3 {
        font-size: 1.1rem;
    }

    /* Footer */
    .footer {
        padding-top: 60px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .footer-brand {
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-links h4,
    .footer-contact h4 {
        margin-bottom: 16px;
    }

    /* WhatsApp */
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
    }

    .whatsapp-tooltip {
        display: none;
    }
}

/* Small Phones */
@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.75rem;
        padding: 8px 16px;
    }

    .hero-title {
        font-size: clamp(1.8rem, 10vw, 2.8rem);
    }

    .hero-stats {
        padding: 20px;
        gap: 20px;
    }

    .stat-number, .stat-plus {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.7rem;
        letter-spacing: 1px;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .portfolio-filter {
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 0.78rem;
    }

    .card-overlay {
        opacity: 1;
        background: rgba(0, 0, 0, 0.5);
    }

    .card-link {
        padding: 10px 22px;
        font-size: 0.8rem;
    }

    .card-info {
        padding: 12px 14px;
    }

    .cta-title {
        font-size: clamp(1.6rem, 7vw, 2.5rem);
    }

    .cta-text {
        font-size: 0.95rem;
    }

    .btn-lg {
        padding: 16px 32px;
        font-size: 0.95rem;
    }

    .systems-note {
        padding: 16px 20px;
        gap: 10px;
    }

    .systems-note p {
        font-size: 0.8rem;
    }

    .about-services {
        gap: 14px;
    }

    .service-card {
        padding: 22px 20px;
    }
}

/* Accessibility - 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;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* Mobile nav overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
}