/* ==========================================================================
   DIVALBY AGENCY PRO - MASTER STYLESHEET
   ========================================================================== */

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

/* --- CSS Variables --- */
:root {
    --bg-color: #070707;
    --primary-accent: #C7A96B;
    --text-white: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.75);
    --border-color: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(255, 255, 255, 0.04);
    --glass-effect: rgba(255, 255, 255, 0.05);
    --font-primary: 'Inter', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --container-width: 1280px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-white);
    font-family: var(--font-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(3rem, 5vw, 5.5rem); letter-spacing: -1px; }
h2 { font-size: clamp(2.5rem, 4vw, 4rem); letter-spacing: -0.5px; }
h3 { font-size: clamp(2rem, 3vw, 2.5rem); }

p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

a {
    color: var(--text-white);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

section {
    padding: 8rem 0;
}

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

/* --- Components --- */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem 2.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary-accent);
    color: var(--bg-color);
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(199, 169, 107, 0.4);
    transform: translateY(-2px);
}

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

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

/* Glassmorphism Cards */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 3rem;
    transition: var(--transition-smooth);
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: rgba(199, 169, 107, 0.3);
    background: var(--glass-effect);
}

/* Header & Sticky Nav */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    background: transparent;
    padding: 1.5rem 0;
    border-bottom: 1px solid transparent;
}

.site-header.scrolled {
    background: rgba(7, 7, 7, 0.85);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-white);
}

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

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-accent);
    transition: var(--transition-smooth);
}

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-accent);
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-white);
    background: none;
    border: none;
}

/* Mobile Navigation Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(7, 7, 7, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    transform: translateY(-10px);
}

.mobile-menu-overlay.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-nav-links {
    list-style: none;
    text-align: center;
}

.mobile-nav-links li {
    margin: 1.5rem 0;
}

.mobile-nav-links a {
    font-size: 2rem;
    font-weight: 700;
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
    color: var(--primary-accent);
}

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

/* Premium Hero Section */
.hero {
    position: relative;
    padding-top: 12rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(199, 169, 107, 0.15) 0%, rgba(7, 7, 7, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(60px);
}

.hero-grid-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
    opacity: 0.5;
}

.premium-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--glass-effect);
    border: 1px solid rgba(199, 169, 107, 0.3);
    color: var(--primary-accent);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Footer */
.site-footer {
    background-color: #040404;
    padding: 6rem 0 3rem;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-col h4 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-white);
}

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

.footer-col ul li {
    margin-bottom: 0.75rem;
}

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

.footer-col ul a:hover {
    color: var(--primary-accent);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    font-size: 1.25rem;
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

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

/* Newsletter Form */
.newsletter-form {
    display: flex;
    margin-top: 1rem;
    position: relative;
}

.newsletter-form input {
    width: 100%;
    padding: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-white);
    border-radius: 4px 0 0 4px;
    outline: none;
    font-family: var(--font-primary);
}

.newsletter-form input:focus {
    border-color: var(--primary-accent);
}

.newsletter-form button {
    padding: 1rem 1.5rem;
    background: var(--primary-accent);
    color: var(--bg-color);
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.newsletter-form button:hover {
    background-color: #d8ba7c;
}

.form-success-msg {
    display: none;
    color: #C7A96B;
    font-size: 0.9rem;
    margin-top: 0.75rem;
    font-weight: 500;
}

.form-success-msg.active {
    display: block;
}

/* Image Placeholder System */
.placeholder-image {
    background-color: #0a0a0a;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-weight: 500;
    width: 100%;
    height: 100%;
    min-height: 400px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.placeholder-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% { left: 200%; }
}

/* Brand Partners */
.brand-partner {
    opacity: 0.4;
    filter: grayscale(100%);
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-white);
    letter-spacing: 2px;
}
.brand-partner:hover {
    opacity: 1;
    filter: grayscale(0%);
    border-color: var(--primary-accent);
    color: var(--primary-accent);
}

/* Reveal System (Intersection Observer) */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* FAQ Accordion */
.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
}
.faq-question {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.25rem;
    font-weight: 600;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-primary);
}
.faq-icon {
    color: var(--primary-accent);
    font-size: 1.5rem;
    transition: var(--transition-smooth);
}
.faq-item.active .faq-icon {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-smooth);
    color: var(--text-secondary);
}
.faq-item.active .faq-answer {
    max-height: 300px;
    padding-top: 1rem;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .nav-links {
        display: none;
    }
    .header-cta .btn-primary {
        display: none; /* Hide primary CTA on mobile header to save space */
    }
    .mobile-toggle {
        display: block;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    section {
        padding: 5rem 0;
    }
    h1 { font-size: clamp(2.5rem, 8vw, 3.5rem); }
    h2 { font-size: clamp(2rem, 6vw, 2.5rem); }
}

/* Image Hover Animation */
.img-hover {
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.5s ease;
    cursor: pointer;
}
.img-hover:hover {
    transform: scale(1.03);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}