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

:root {
    --primary: #6C63FF;
    --primary-dark: #5a52d5;
    --accent: #00d4aa;
    --accent-dark: #00b894;
    --dark-bg: #0f0f1a;
    --dark-bg-2: #1a1a2e;
    --light-bg: #ffffff;
    --gray-bg: #f8f9fa;
    --text-dark: #1a1a2e;
    --text-light: #ffffff;
    --text-muted: #6c757d;
    --text-muted-light: rgba(255, 255, 255, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-bg-light: rgba(255, 255, 255, 0.7);
    --glass-border-light: rgba(255, 255, 255, 0.4);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.15);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
}

/* ========== DARK MODE ========== */
[data-theme="dark"] {
    --light-bg: #121220;
    --gray-bg: #1a1a2e;
    --text-dark: #e4e4e7;
    --text-muted: #9ca3af;
    --glass-bg-light: rgba(255, 255, 255, 0.05);
    --glass-border-light: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .section-light,
[data-theme="dark"] .section-gray {
    color: var(--text-dark);
}

[data-theme="dark"] .app-showcase {
    background: #1e1e32;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .app-name {
    color: var(--text-dark);
}

[data-theme="dark"] .app-features li {
    color: var(--text-dark);
}

[data-theme="dark"] .contact-form {
    background: #1e1e32;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea {
    border-color: #333;
    color: var(--text-dark);
}

[data-theme="dark"] .phone-screen {
    background: linear-gradient(180deg, #2a2a40, #1e1e32);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--light-bg);
}

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

.hidden {
    display: none !important;
}

/* ========== NAVBAR ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.navbar-logo {
    text-decoration: none;
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-firma {
    color: var(--text-light);
}

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

.navbar.scrolled .logo-firma {
    color: var(--text-light);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-light);
    background: rgba(255, 255, 255, 0.1);
}

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

/* Theme Toggle */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-light);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(30deg);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

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

[data-theme="dark"] .theme-toggle .icon-sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: block;
}

.lang-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-light);
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.lang-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lang-option {
    transition: all var(--transition);
}

.lang-option.active {
    color: var(--accent);
}

.lang-separator {
    opacity: 0.4;
}

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

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    transition: all var(--transition);
}

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

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

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

/* ========== HERO ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-bg-2) 50%, #16213e 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(108, 99, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 20%, rgba(108, 99, 255, 0.08) 0%, transparent 40%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% {
        opacity: 0.6;
        transform: scale(1);
    }
    100% {
        opacity: 1;
        transform: scale(1.05);
    }
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 120px 24px 80px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--text-light);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-muted-light);
    max-width: 650px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-light);
    border-color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(108, 99, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-light);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.btn-store {
    background: var(--text-dark);
    color: var(--text-light);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.btn-store:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

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

/* ========== SECTIONS ========== */
.section {
    padding: 100px 0;
}

.section-light {
    background: var(--light-bg);
}

.section-gray {
    background: var(--gray-bg);
}

.section-dark {
    background: linear-gradient(135deg, var(--dark-bg), var(--dark-bg-2));
    color: var(--text-light);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-dark .section-subtitle {
    color: var(--text-muted-light);
}

/* ========== CARDS ========== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    padding: 36px 28px;
    border-radius: var(--radius);
    transition: all var(--transition);
}

.glass-card {
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
}

.glass-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--text-light);
}

.card-icon.accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

.card-icon svg {
    width: 28px;
    height: 28px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.card-text {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========== APP SHOWCASE ========== */
.app-showcase {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-bottom: 80px;
    padding: 40px;
    border-radius: var(--radius);
    background: var(--light-bg);
    box-shadow: var(--shadow);
}

.app-showcase:last-child {
    margin-bottom: 0;
}

.app-showcase-reverse {
    flex-direction: row-reverse;
}

.app-mockup {
    flex-shrink: 0;
}

.phone-frame {
    width: 220px;
    height: 440px;
    border-radius: 36px;
    background: linear-gradient(145deg, #1a1a2e, #2d2d44);
    padding: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    position: relative;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #0f0f1a;
    border-radius: 12px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 26px;
    background: linear-gradient(180deg, #f0f0ff 0%, #e8e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.app-icon-large svg {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
}

.app-info {
    flex: 1;
}

.app-name {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.app-desc {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.app-features {
    list-style: none;
    margin-bottom: 28px;
}

.app-features li {
    padding: 6px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.app-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

/* ========== STATS ========== */
.stats-section {
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--accent);
    display: inline;
}

.stat-suffix {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--accent);
}

.stat-label {
    color: var(--text-muted-light);
    font-size: 1rem;
    margin-top: 8px;
}

/* ========== CONTACT ========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--text-light);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-item h4 {
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 0.95rem;
}

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

/* Form */
.contact-form {
    background: var(--light-bg);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-group {
    position: relative;
    margin-bottom: 24px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 16px 8px;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    background: transparent;
    transition: border-color var(--transition);
    outline: none;
    color: var(--text-dark);
}

.form-group label {
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: all var(--transition);
    pointer-events: none;
}

.form-group textarea ~ label {
    top: 20px;
    transform: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: 6px;
    transform: none;
    font-size: 0.75rem;
    color: var(--primary);
}

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

/* ========== FOOTER ========== */
.footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

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

.footer-links h4,
.footer-social h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-muted-light);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

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

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted-light);
    transition: all var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--text-light);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    text-align: center;
    color: var(--text-muted-light);
    font-size: 0.85rem;
}

/* ========== ANIMATIONS ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========== RESPONSIVE ========== */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

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

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

    .app-showcase {
        flex-direction: column;
        text-align: center;
        padding: 32px;
        gap: 40px;
    }

    .app-showcase-reverse {
        flex-direction: column;
    }

    .app-features li {
        text-align: left;
    }
}

@media (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(15, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 8px;
        transition: right var(--transition);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
    }

    .navbar-menu.open {
        right: 0;
    }

    .nav-link {
        font-size: 1.1rem;
        padding: 12px 16px;
    }

    .hamburger {
        display: flex;
    }

    .section {
        padding: 70px 0;
    }

    .hero-content {
        padding: 100px 16px 60px;
    }

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

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

    .phone-frame {
        width: 180px;
        height: 360px;
    }

    .contact-form {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

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