/* --- CSS Reset & Variables --- */
:root {
    /* Colors (dark theme – default) */
    --bg-dark: #0d1117;
    --bg-surface: #161b22;
    --bg-surface-hover: #1f2530;

    --primary: #ff5a00;
    --primary-hover: #e04e00;
    --primary-light: rgba(255, 90, 0, 0.15);

    --accent: #6366f1;

    --text-main: #ffffff;
    --text-muted: #8b949e;

    /* Themeable surface tokens */
    --glass-bg: rgba(22, 27, 34, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --navbar-bg: rgba(13, 17, 23, 0.85);
    --navbar-border: rgba(255, 255, 255, 0.05);
    --field-bg: rgba(255, 255, 255, 0.03);
    --field-bg-focus: rgba(255, 255, 255, 0.07);
    --field-border: rgba(255, 255, 255, 0.08);
    --hairline: rgba(255, 255, 255, 0.05);
    --code-bg: rgba(0, 0, 0, 0.3);
    --carousel-img-filter: grayscale(100%) brightness(1.2);
    --aurora-opacity: 0.5;
    --contact-gradient: linear-gradient(135deg, rgba(22, 27, 34, 0.9) 0%, rgba(13, 17, 23, 0.95) 100%);
    --hero-glow: radial-gradient(circle, rgba(255, 90, 0, 0.12) 0%, rgba(99, 102, 241, 0.04) 50%, rgba(13, 17, 23, 0) 70%);
    --code-window-bg: #161b22;
    --code-window-header: rgba(0, 0, 0, 0.3);
    --code-window-text: #c9d1d9;
    --carousel-fade: var(--bg-dark);

    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-display: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    --container-width: 1200px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
}

/* --- Light theme --- */
html[data-theme="light"] {
    --bg-dark: #f6f7fb;
    --bg-surface: #ffffff;
    --bg-surface-hover: #eef1f7;

    --primary: #ff5a00;
    --primary-hover: #e04e00;
    --primary-light: rgba(255, 90, 0, 0.12);

    --accent: #6366f1;

    --text-main: #0d1117;
    --text-muted: #5b6573;

    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(13, 17, 23, 0.08);
    --navbar-bg: rgba(246, 247, 251, 0.85);
    --navbar-border: rgba(13, 17, 23, 0.07);
    --field-bg: rgba(13, 17, 23, 0.03);
    --field-bg-focus: rgba(13, 17, 23, 0.06);
    --field-border: rgba(13, 17, 23, 0.12);
    --hairline: rgba(13, 17, 23, 0.08);
    --code-bg: rgba(13, 17, 23, 0.04);
    --carousel-img-filter: grayscale(100%) brightness(0.5);
    --aurora-opacity: 0.35;
    --contact-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(246, 247, 251, 0.98) 100%);
    --hero-glow: radial-gradient(circle, rgba(255, 90, 0, 0.08) 0%, rgba(99, 102, 241, 0.03) 50%, rgba(246, 247, 251, 0) 70%);
    --code-window-bg: #1a1f26;
    --code-window-header: rgba(0, 0, 0, 0.25);
    --code-window-text: #c9d1d9;
    --carousel-fade: var(--bg-dark);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-medium), color var(--transition-medium);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, .logo {
    font-family: var(--font-display);
}

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

ul {
    list-style: none;
}

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

/* Accessible focus */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    z-index: 1000;
    background: var(--primary);
    color: #fff;
    padding: 0.75rem 1.25rem;
    border-radius: 0 0 8px 0;
    font-weight: 600;
}

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

/* --- Animated aurora background --- */
.aurora {
    position: fixed;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

.aurora-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: var(--aurora-opacity);
    will-change: transform;
}

.blob-1 {
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, rgba(255, 90, 0, 0.35), transparent 70%);
    top: -10%;
    right: -5%;
    animation: float1 18s ease-in-out infinite;
}

.blob-2 {
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.3), transparent 70%);
    bottom: -15%;
    left: -10%;
    animation: float2 22s ease-in-out infinite;
}

.blob-3 {
    width: 30vw;
    height: 30vw;
    background: radial-gradient(circle, rgba(255, 90, 0, 0.18), transparent 70%);
    top: 40%;
    left: 50%;
    animation: float3 26s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-6%, 8%) scale(1.15); }
}

@keyframes float2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(8%, -6%) scale(1.1); }
}

@keyframes float3 {
    0%, 100% { transform: translate(-50%, 0) scale(1); }
    50% { transform: translate(-40%, -10%) scale(1.2); }
}

/* --- Scroll progress bar --- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    z-index: 300;
    transition: width 0.1s linear;
}

/* --- Layout & Utilities --- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.highlight {
    color: var(--primary);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: background var(--transition-medium), border-color var(--transition-medium);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px rgba(255, 90, 0, 0.4);
}

/* Shine sweep on primary buttons */
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -120%;
    width: 60%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: skewX(-20deg);
    transition: left 0.6s ease;
}

.btn-primary:hover::after {
    left: 130%;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 90, 0, 0.5);
}

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

.btn-secondary:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-wa,
.btn-secondary.btn-wa {
    gap: 0.65rem;
}

.btn-secondary.btn-wa i,
.btn-secondary .wa-icon {
    color: #25d366;
    font-size: 1.2rem;
    line-height: 1;
    flex-shrink: 0;
}

.whatsapp-fab,
.whatsapp-fab.btn-wa {
    color: #fff;
}

.whatsapp-fab i,
.whatsapp-fab.btn-wa i,
.mobile-cta-wa i {
    color: #fff !important;
    font-size: 1.6rem;
    line-height: 1;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.25rem 0;
    transition: all var(--transition-fast);
}

.navbar.scrolled {
    background: var(--navbar-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--navbar-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 3px solid var(--text-main);
    border-radius: 50%;
    margin-right: 12px;
    flex-shrink: 0;
}

.logo-icon i {
    font-size: 1.25rem;
}

.logo-text-new {
    color: var(--primary);
}

.logo-text-tech {
    color: var(--text-main);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-links a:not(.btn) {
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition-fast), background-size var(--transition-fast);
    background-image: linear-gradient(var(--primary), var(--primary));
    background-repeat: no-repeat;
    background-position: 0 100%;
    background-size: 0% 2px;
    padding-bottom: 2px;
}

.nav-links a:not(.btn):hover,
.nav-links a.active {
    color: var(--text-main);
    background-size: 100% 2px;
}

.btn-nav {
    padding: 0.6rem 1.1rem;
    font-size: 0.9rem;
    white-space: nowrap;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-main);
    background: none;
    border: none;
    padding: 0.25rem;
}

/* --- Theme toggle --- */
.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-main);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    flex-shrink: 0;
    transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), background var(--transition-medium);
}

.theme-toggle:hover {
    color: var(--primary);
    border-color: rgba(255, 90, 0, 0.4);
    transform: rotate(15deg) scale(1.05);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline; }

html[data-theme="light"] .theme-toggle .icon-sun { display: inline; }
html[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.theme-toggle-mobile {
    margin-top: 0.5rem;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 200;
    transition: right var(--transition-medium);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    width: 100%;
    padding: 2rem;
}

.close-menu {
    position: absolute;
    top: 1.75rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 2rem;
    cursor: pointer;
}

.mobile-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
}

.mobile-btn {
    margin-top: 1rem;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    padding-top: 160px;
    padding-bottom: 100px;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg-gradient {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: var(--hero-glow);
    z-index: -1;
    filter: blur(60px);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: var(--primary-light);
    border: 1px solid rgba(255, 90, 0, 0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #27c93f;
    box-shadow: 0 0 0 0 rgba(39, 201, 63, 0.6);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(39, 201, 63, 0.6); }
    70% { box-shadow: 0 0 0 8px rgba(39, 201, 63, 0); }
    100% { box-shadow: 0 0 0 0 rgba(39, 201, 63, 0); }
}

.hero-title {
    font-size: clamp(2.5rem, 6.5vw, 4.25rem);
    font-weight: 800;
    line-height: 1.08;
    margin-bottom: 1.25rem;
    letter-spacing: -1.5px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 38rem;
    line-height: 1.65;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem 2rem;
    margin-top: 2.75rem;
    padding-top: 2rem;
    border-top: 1px solid var(--hairline);
    max-width: 32rem;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    min-width: 0;
}

.stat-num {
    font-family: var(--font-display);
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.15;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.35;
}

.hero-glass-card {
    padding: 0;
    overflow: hidden;
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: transform var(--transition-medium);
    border: 1px solid var(--glass-border);
    max-width: 100%;
    background: var(--code-window-bg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.hero-glass-card .card-header {
    background: var(--code-window-header);
    border-bottom: 1px solid var(--hairline);
}

.hero-glass-card .card-body {
    color: var(--code-window-text);
}

.hero-glass-card:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg) scale(1.02);
}

.card-header {
    background: var(--code-bg);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--hairline);
}

.card-filename {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.card-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: clamp(0.78rem, 1.6vw, 0.95rem);
    line-height: 1.7;
    overflow-x: auto;
}

.card-body pre {
    white-space: pre;
}

.code-keyword { color: #ff7b72; }
.code-var { color: #79c0ff; }
.code-prop { color: #d2a8ff; }
.code-string { color: #a5d6ff; }
.code-boolean { color: #79c0ff; }
.code-function { color: #d2a8ff; }

/* --- Carousel / Trusted By --- */
.trusted-by {
    padding: 3rem 0;
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    background: var(--bg-surface);
    --carousel-fade: var(--bg-surface);
    width: 100%;
    overflow: hidden;
    transition: background var(--transition-medium);
}

.trusted-title {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
}

.trusted-hint {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    opacity: 0.85;
}

.carousel-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    display: flex;
}

.carousel-container::before,
.carousel-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.carousel-container::before {
    left: 0;
    background: linear-gradient(to right, var(--carousel-fade), transparent);
}

.carousel-container::after {
    right: 0;
    background: linear-gradient(to left, var(--carousel-fade), transparent);
}

.carousel-track {
    display: flex;
    align-items: center;
    animation: scroll 30s linear infinite;
    width: max-content;
}

.carousel-container:hover .carousel-track {
    animation-play-state: paused;
}

.carousel-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    gap: 0.75rem;
    color: var(--text-muted);
    opacity: 0.55;
    transition: opacity var(--transition-medium), transform var(--transition-medium);
    margin: 0 3rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    font: inherit;
}

.carousel-tooltip {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    width: max-content;
    max-width: 220px;
    padding: 0.5rem 0.75rem;
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    color: var(--text-main);
    line-height: 1.4;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    z-index: 5;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

@media (hover: hover) {
    .carousel-logo:hover .carousel-tooltip {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }
}

.carousel-logo img {
    height: 60px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    filter: var(--carousel-img-filter);
    transition: all var(--transition-medium);
}

.carousel-logo:hover img {
    filter: grayscale(0%) brightness(1);
}

.carousel-logo:hover {
    opacity: 1;
    transform: scale(1.1) translateY(-5px);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* --- Services Section --- */
.services {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4.5vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.125rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 2.5rem;
    transition: transform var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
    border: 1px solid var(--hairline);
    position: relative;
    overflow: hidden;
}

/* Glow that follows the cursor */
.service-card::before {
    content: '';
    position: absolute;
    top: var(--my, 50%);
    left: var(--mx, 50%);
    width: 350px;
    height: 350px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(255, 90, 0, 0.12), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-medium);
    pointer-events: none;
}

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

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 90, 0, 0.3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2), inset 0 0 0 1px rgba(255, 90, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    transition: all var(--transition-fast);
    position: relative;
    z-index: 1;
}

.service-card:hover .service-icon {
    background-color: var(--primary);
    color: white;
    transform: rotate(-6deg) scale(1.05);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.service-card p {
    color: var(--text-muted);
    position: relative;
    z-index: 1;
    margin-bottom: 1.25rem;
}

.service-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    position: relative;
    z-index: 1;
    transition: gap var(--transition-fast), color var(--transition-fast);
}

.service-cta:hover {
    gap: 0.75rem;
    color: var(--primary-hover);
}

/* --- FAQ Section --- */
.faq {
    padding: 100px 0;
    position: relative;
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    border: 1px solid var(--hairline);
    overflow: hidden;
    transition: all var(--transition-medium);
}

.faq-item:hover {
    border-color: rgba(255, 90, 0, 0.3);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(255, 90, 0, 0.1);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.5rem 2rem;
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    font-weight: 600;
    font-family: var(--font-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question i {
    color: var(--primary);
    transition: transform var(--transition-medium);
    flex-shrink: 0;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium) cubic-bezier(0, 1, 0, 1);
    background: rgba(0, 0, 0, 0.2);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    transition: max-height var(--transition-medium) ease-in-out;
}

.faq-answer p {
    padding: 0 2rem 1.5rem 2rem;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

/* --- Contact / CTA Section --- */
.contact {
    padding: 100px 0;
}

.contact-card {
    padding: 4rem;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
    background: var(--contact-gradient);
    border: 1px solid rgba(255, 90, 0, 0.2);
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    transition: background var(--transition-medium);
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 90, 0, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.contact-content {
    max-width: 600px;
}

.contact-content h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

.contact-content p {
    color: var(--text-muted);
    font-size: 1.125rem;
}

.contact-channels {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-phone {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    padding-left: 1rem;
}

.contact-form-container {
    width: 100%;
    position: relative;
    z-index: 5;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    background: var(--field-bg);
    border: 1px solid var(--field-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-main);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    outline: none;
    width: 100%;
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: var(--field-bg-focus);
    box-shadow: 0 0 10px rgba(255, 90, 0, 0.15);
}

.form-group input.invalid,
.form-group textarea.invalid,
.form-group select.invalid {
    border-color: #f85149;
}

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

.btn-submit {
    gap: 0.5rem;
    width: 100%;
    margin-top: 1rem;
}

.form-status {
    margin-top: 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    text-align: center;
    border-radius: var(--border-radius-sm);
    padding: 0.75rem;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(40, 167, 69, 0.1);
    color: #2ec852;
    border: 1px solid rgba(40, 167, 69, 0.2);
}

.form-status.error {
    display: block;
    background: rgba(220, 53, 69, 0.1);
    color: #f85149;
    border: 1px solid rgba(220, 53, 69, 0.2);
}

.form-privacy,
.form-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.5rem;
}

.form-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-weight: 500;
}

.form-note i {
    color: var(--primary);
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--hairline);
    padding: 80px 0 40px 0;
    background-color: var(--bg-surface);
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-about p {
    color: var(--text-muted);
    margin: 1.5rem 0;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-surface-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--hairline);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* --- Floating WhatsApp button --- */
.whatsapp-fab {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    z-index: 90;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    animation: fab-in 0.4s ease both;
}

.whatsapp-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 26px rgba(37, 211, 102, 0.6);
}

@keyframes fab-in {
    from { opacity: 0; transform: scale(0.5); }
    to { opacity: 1; transform: scale(1); }
}

/* --- Animations & Utilities --- */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* --- Success Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    padding: 1rem;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-box {
    padding: 3rem 2.5rem;
    max-width: 440px;
    width: 100%;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform: scale(0.85) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-box {
    transform: scale(1) translateY(0);
}

.modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.checkmark {
    width: 80px;
    height: 80px;
}

.checkmark-circle {
    stroke: var(--primary);
    stroke-width: 2;
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
}

.checkmark-check {
    stroke: var(--primary);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
}

.modal-overlay.active .checkmark-circle {
    animation: stroke-circle 0.6s cubic-bezier(0.65, 0, 0.45, 1) 0.2s forwards;
}

.modal-overlay.active .checkmark-check {
    animation: stroke-check 0.4s cubic-bezier(0.65, 0, 0.45, 1) 0.7s forwards;
}

@keyframes stroke-circle { to { stroke-dashoffset: 0; } }
@keyframes stroke-check { to { stroke-dashoffset: 0; } }

.modal-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.5px;
}

.modal-text {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.modal-close-btn {
    width: 100%;
    padding: 0.9rem;
}

/* --- Why / About --- */
.why {
    padding: 100px 0;
}

.why-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.why-story {
    padding: 2.5rem;
    border: 1px solid var(--hairline);
}

.why-story h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.why-story p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.why-founder {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--hairline);
    font-size: 0.95rem;
}

.why-points {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.why-point {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1.25rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--hairline);
    background: var(--glass-bg);
}

.why-point i {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 10px;
    font-size: 1.1rem;
}

.why-point h4 {
    font-size: 1.05rem;
    margin-bottom: 0.35rem;
}

.why-point p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Process --- */
.process {
    padding: 100px 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.process-step {
    padding: 2rem 1.5rem;
    border: 1px solid var(--hairline);
    position: relative;
}

.process-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.35;
    line-height: 1;
    margin-bottom: 0.75rem;
}

.process-step h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.process-step p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Case modal --- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.case-modal-box {
    max-width: 440px;
    text-align: center;
    padding: 2.5rem 2rem 2rem;
    position: relative;
}

.case-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
}

.case-modal-close:hover {
    color: var(--primary);
}

.case-modal-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    margin: 0.5rem 0 1.5rem;
    padding: 0 1rem;
}

.case-modal-brand img {
    display: block;
    max-height: 72px;
    max-width: min(240px, 100%);
    width: auto;
    height: auto;
    object-fit: contain;
    filter: none !important;
    opacity: 1;
    margin: 0 auto;
}

.case-modal-work {
    color: var(--text-main);
    margin-bottom: 0.75rem;
    line-height: 1.6;
    font-weight: 500;
}

.case-modal-result {
    color: var(--text-muted);
    margin-bottom: 1.75rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.case-modal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

#case-modal[hidden] {
    display: none !important;
}

/* --- Mobile CTA bar --- */
.mobile-cta-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 85;
    padding: 0.65rem 1rem calc(0.65rem + env(safe-area-inset-bottom));
    background: var(--navbar-bg);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--navbar-border);
    gap: 0.65rem;
}

.mobile-cta-bar .btn {
    flex: 1;
    padding: 0.65rem 0.75rem;
    font-size: 0.9rem;
}

/* --- Responsive Design --- */
@media (max-width: 1100px) {
    .nav-links {
        gap: 0.85rem;
    }

    .nav-links a:not(.btn) {
        font-size: 0.9rem;
    }
}

@media (max-width: 992px) {
    .hero {
        padding-top: 130px;
        min-height: auto;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-eyebrow {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 2rem;
    }

    .hero-stats {
        text-align: center;
    }

    .stat {
        align-items: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-glass-card {
        transform: none;
        max-width: 480px;
        margin: 0 auto;
    }

    .hero-glass-card:hover {
        transform: scale(1.01);
    }

    .contact-card {
        grid-template-columns: 1fr;
        text-align: left;
        gap: 3rem;
        padding: 3rem 2rem;
    }
}

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

    .hamburger {
        display: block;
    }

    .mobile-cta-bar {
        display: flex;
    }

    body {
        padding-bottom: 4.5rem;
    }

    .whatsapp-fab {
        bottom: 5rem;
    }

    .carousel-tooltip {
        display: none;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .services,
    .faq,
    .contact {
        padding: 70px 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .footer-about p {
        max-width: 100%;
    }

    .faq-question {
        padding: 1.25rem 1.25rem;
    }

    .faq-answer p {
        padding: 0 1.25rem 1.25rem 1.25rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        max-width: 100%;
    }

    .stat {
        align-items: center;
        text-align: center;
    }

    .service-card,
    .contact-card {
        padding: 2rem 1.5rem;
    }

    .modal-box {
        padding: 2.5rem 1.5rem;
    }

    .whatsapp-fab {
        width: 50px;
        height: 50px;
        font-size: 1.4rem;
    }
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }

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

    .aurora,
    .carousel-track {
        animation: none !important;
    }
}