@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Premium Architectural Palette */
    --slate-950: #020617;
    --slate-900: #0F172A;
    --slate-800: #1E293B;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-400: #94A3B8;
    --slate-200: #E2E8F0;
    --slate-100: #F1F5F9;
    --slate-50: #F8FAFC;
    
    --brand-primary: #1E293B; /* Deep Charcoal */
    --brand-accent: #334155;
    
    --white: #FFFFFF;
    
    /* Functional Colors */
    --bg-main: var(--slate-50);
    --text-main: var(--slate-900);
    --text-muted: var(--slate-500);
    
    /* Shadows - Deep but Soft */
    --shadow-soft: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-medium: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-large: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Typography */
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* --- NAVIGATION --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 24px 0;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    padding: 16px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

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

.nav-brand .brand-logo {
    height: 48px;
    width: auto;
    transition: all 0.4s ease;
}

.navbar.scrolled .brand-logo {
    height: 40px;
}

.nav-menu {
    display: flex;
    gap: 48px;
    list-style: none;
}

.nav-menu a {
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
}

.navbar.scrolled .nav-menu a {
    color: var(--slate-900);
}

.nav-menu a:hover,
.nav-menu a.active {
    opacity: 0.6;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    margin: 5px 0;
    transition: 0.3s;
}

.navbar.scrolled .nav-toggle span {
    background: var(--slate-900);
}

/* --- HERO --- */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--slate-950);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(2, 6, 23, 0.4) 0%, rgba(2, 6, 23, 0.8) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1080px;
    text-align: center;
    padding: 0 24px;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 32px;
    letter-spacing: -0.04em;
    text-transform: capitalize;
}

.hero-subtitle-1 {
    font-size: clamp(18px, 2vw, 24px);
    color: var(--white);
    margin-bottom: 8px;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hero-subtitle-2 {
    font-size: clamp(16px, 1.5vw, 18px);
    color: var(--slate-100);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 36px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 0;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--white);
    color: var(--slate-950);
    border: 1px solid var(--white);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: var(--white);
}

.btn-whatsapp-hero {
    background-color: transparent;
    color: #4ADE80; /* Subtle Green */
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.btn-whatsapp-hero:hover {
    background-color: #4ADE80;
    color: var(--white);
    border-color: #4ADE80;
}

/* --- SECTION DEFAULTS --- */
section {
    padding: 120px 0;
}

.section-header {
    margin-bottom: 80px;
    text-align: center;
}

.section-header h2 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
    .nav-menu { display: none; }
    .nav-toggle { display: block; }
    .hero-buttons { flex-direction: column; }
    section { padding: 80px 0; }
}