/* Variables */
:root {
    --primary-dark: #07192F;
    --primary-dark-variant: #0a2542;
    --gold: #D4AF37;
    --gold-light: #F3E5AB;
    --text-light: #E0E6ED;
    --text-white: #FFFFFF;
    --font-main: 'Manrope', sans-serif;
    --font-heading: 'Manrope', sans-serif;
    --transition-fast: 0.3s ease;
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--text-white);
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

/* Utilities */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.gold-text {
    color: var(--gold);
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--gold), #b38b22);
    color: var(--primary-dark);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-family: var(--font-main);
    border-radius: 4px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
}

.btn-primary.large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.mt-2 { margin-top: 2rem; }

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    transition: background-color var(--transition-fast), padding var(--transition-fast);
}

header.scrolled {
    background-color: rgba(7, 25, 47, 0.95);
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 65px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    font-weight: 400;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.nav-menu a:hover:not(.btn-primary) {
    color: var(--gold);
}

.mobile-menu-icon {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-icon .bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-white);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: url('../images/hero_bg.png') center/cover no-repeat;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(7, 25, 47, 0.6) 0%, rgba(7, 25, 47, 0.9) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--text-light);
    font-weight: 300;
}

/* Why AI Section */
.why-ai {
    padding: 6rem 0;
    background-color: var(--primary-dark);
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-title h2 {
    font-size: 2.5rem;
}

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

.benefit-card {
    background-color: var(--primary-dark-variant);
    padding: 3rem 2rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.benefit-card:hover {
    transform: translateY(-5px);
    background-color: rgba(212, 175, 55, 0.05);
    border-color: rgba(212, 175, 55, 0.2);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

/* Services Section */
.services {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-dark), #030d17);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    align-items: stretch;
}

.service-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 2rem;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border-color: rgba(212, 175, 55, 0.3);
}

.service-card.popular {
    border-color: var(--gold);
    background: rgba(212, 175, 55, 0.05);
    transform: scale(1.05);
}

.service-card.popular:hover {
    transform: scale(1.05) translateY(-10px);
}

.ribbon {
    position: absolute;
    top: 20px;
    right: -35px;
    background: var(--gold);
    color: var(--primary-dark);
    padding: 5px 40px;
    transform: rotate(45deg);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.service-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    color: var(--gold-light);
}

.service-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-price {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 1.5rem;
}

.service-price .period {
    font-size: 1rem;
    font-family: var(--font-main);
    color: var(--text-light);
    font-weight: 300;
}

.service-desc {
    margin-bottom: 2rem;
    font-size: 0.95rem;
    flex-grow: 1;
}

.service-features li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
}

.service-features li span {
    color: var(--gold);
}

/* Footer */
.footer {
    padding: 5rem 0 2rem;
    background-color: #030d17;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-title {
    font-size: 2rem;
}

.copyright {
    margin-top: 4rem;
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 900px) {
    .service-card.popular {
        transform: scale(1);
    }
    .service-card.popular:hover {
        transform: translateY(-10px);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--primary-dark-variant);
        flex-direction: column;
        padding: 2rem 0;
        text-align: center;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-icon {
        display: flex;
    }
}