/* CSS Variables - Premium Dark Aesthetics */
:root {
    --brand-green: #118A42;
    --brand-green-glow: rgba(17, 138, 66, 0.4);
    --brand-light-green: #1fd167;
    
    --bg-base: #050a12;
    --bg-elevated: #0a111a;
    --bg-card: rgba(15, 23, 42, 0.6);
    
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(255, 255, 255, 0.15);
    
    --header-height: 120px;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    --shadow-glow: 0 0 30px var(--brand-green-glow);
    --shadow-dropdown: 0 20px 40px rgba(0,0,0,0.5);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    background-color: var(--bg-base);
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Typography Matrix */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

p { color: var(--text-secondary); margin-bottom: 1.2rem; font-size: 1.05rem; }
a { text-decoration: none; color: inherit; transition: var(--transition-fast); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.text-gradient {
    background: linear-gradient(135deg, #2dd4bf, var(--brand-light-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.section { padding: 120px 0; position: relative; overflow: hidden; }
.bg-elevated { background-color: var(--bg-elevated); }

.mt-40 { margin-top: 40px; }

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 70px;
}
.section-header h2 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; }
.section-header.left-align { text-align: left; margin: 0 0 40px 0; }
.section-subtitle { margin-top: 20px; font-size: 1.15rem; }

/* Abstract Glow Elements */
.section-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--brand-green-glow) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 600;
    font-size: 1.05rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--brand-green);
    color: #fff;
    box-shadow: 0 8px 20px rgba(17, 138, 66, 0.25);
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: skewX(-20deg);
    transition: 0.5s;
}

.btn-primary:hover {
    background: var(--brand-light-green);
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(31, 209, 103, 0.3);
}

.btn-primary:hover::after {
    left: 150%;
}

.btn-glass {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-highlight);
    color: #fff;
}

.btn-glass:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
    border-color: rgba(255,255,255,0.3);
}

.btn-block { width: 100%; }
.btn-lg { padding: 20px 40px; font-size: 1.15rem; }

.link-arrow {
    color: var(--brand-light-green);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    font-family: 'Plus Jakarta Sans', sans-serif;
}
.link-arrow:hover { color: #fff; transform: translateX(5px); }

/* Premium Glass Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.glass-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5), inset 0 0 20px rgba(255,255,255,0.02);
}

/* Header Navbar */
.header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: var(--transition-smooth);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    background: rgba(5, 10, 18, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo-link {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.logo { height: 96px; transition: var(--transition-fast); }
.header.scrolled .logo { height: 84px; }
@media(max-width: 768px) { .logo { height: 60px; } .header.scrolled .logo { height: 54px; } }

.main-nav { display: flex; align-items: center; gap: 40px; }
.main-nav ul { display: flex; gap: 32px; }
.main-nav a:not(.btn) {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}
.main-nav a:not(.btn):hover { color: var(--text-primary); }

.btn-header { padding: 12px 24px; font-size: 0.95rem; }

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none; border: none; cursor: pointer;
    width: 32px; height: 24px; position: relative; z-index: 1001;
}
.mobile-menu-toggle span {
    display: block; width: 100%; height: 2px;
    background: var(--text-primary);
    position: absolute; transition: var(--transition-smooth);
    border-radius: 2px;
}
.mobile-menu-toggle span:nth-child(1) { top: 0; }
.mobile-menu-toggle span:nth-child(2) { top: 11px; }
.mobile-menu-toggle span:nth-child(3) { top: 22px; }

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative;
    background-image: url('assets/hero_banner_1775848430509.png');
    background-size: cover; background-position: center;
    background-attachment: fixed;
    text-align: left;
    overflow: hidden;
}

.hero-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(5, 10, 18, 0.4) 0%, var(--bg-base) 100%);
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    padding-top: var(--header-height);
}

.hero h1 {
    font-size: clamp(1.5rem, 3.5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 12px;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.hero .subheadline {
    font-size: clamp(0.75rem, 1.5vw, 0.9rem);
    color: var(--text-secondary);
    max-width: 750px; margin-bottom: 30px;
    font-weight: 400;
}

.hero-ctas {
    display: flex; gap: 20px; justify-content: flex-start; flex-wrap: wrap;
}

/* Trust Bar */
.trust-bar {
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(10, 17, 26, 0.4);
    padding: 24px 0;
    position: relative;
    z-index: 10;
}

.trust-container {
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px;
}

.trust-item {
    display: flex; align-items: center; gap: 12px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.95rem; font-weight: 600; color: var(--text-primary);
    text-transform: uppercase; letter-spacing: 0.05em;
}

.trust-icon {
    width: 24px; height: 24px;
    background: rgba(45, 212, 191, 0.1);
    color: var(--brand-light-green);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
}

/* Problem Grid */
.problem-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}
.problem-card h3 { margin-bottom: 16px; font-size: 1.4rem; color: #fff; }

/* Features Rows */
.feature-row {
    display: flex; align-items: center; gap: 60px; margin-bottom: 100px;
}
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse { flex-direction: row-reverse; }

.feature-image {
    flex: 1; border-radius: var(--radius-lg); overflow: hidden;
    position: relative;
    border: 1px solid var(--border-subtle);
}
.feature-image img { width: 100%; filter: grayscale(20%) contrast(1.1); transition: 0.5s; }
.feature-image:hover img { filter: grayscale(0%) contrast(1.2); transform: scale(1.03); }

.feature-text { flex: 1; }
.feature-text h3 { font-size: 2.2rem; margin-bottom: 30px; }

.comparison-box { margin-bottom: 24px; }
.comparison-box p {
    padding: 16px 20px; border-radius: var(--radius-sm);
    margin-bottom: 12px; display: flex; gap: 16px; align-items: flex-start;
}
.bad-way { background: rgba(239, 68, 68, 0.05); border: 1px solid rgba(239, 68, 68, 0.1); color: var(--text-secondary); }
.bad-way span { color: #ef4444; font-weight: bold; font-size: 1.2rem; }
.good-way { background: rgba(45, 212, 191, 0.05); border: 1px solid rgba(45, 212, 191, 0.2); color: var(--text-primary); }
.good-way span { color: var(--brand-light-green); font-weight: bold; font-size: 1.2rem; }

/* Inventory Grid */
.inventory-wrapper {
    display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}

.model-list li {
    padding: 20px 0; border-bottom: 1px solid var(--border-subtle);
}
.model-list li:first-child { border-top: 1px solid var(--border-subtle); }

.model-name { font-size: 1.3rem; font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 700; display: flex; justify-content: space-between; align-items: center; margin-bottom: 5px; color: #fff;}
.storage { font-size: 0.85rem; padding: 4px 10px; border-radius: 4px; background: rgba(255,255,255,0.05); border: 1px solid var(--border-subtle); color: var(--text-secondary); }
.model-desc { font-size: 1rem; color: var(--text-muted); }

.inventory-image-container { position: relative; }
.image-glow {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 80%; height: 80%; background: var(--brand-green-glow);
    filter: blur(60px); z-index: 0;
}
.premium-img {
    border-radius: var(--radius-lg); position: relative; z-index: 1;
    border: 1px solid var(--border-subtle);
    box-shadow: 0 30px 60px rgba(0,0,0,0.6);
}

/* Process Timeline Visual */
.timeline {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.timeline-item { position: relative; }
.t-line {
    position: absolute; top: 24px; left: 60px; right: -20px;
    height: 1px; background: var(--border-subtle); z-index: 0;
}
.timeline-item:last-child .t-line { display: none; }
.t-num {
    width: 50px; height: 50px; border-radius: 50%;
    background: var(--bg-elevated); border: 1px solid var(--border-highlight);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 700; font-size: 1.2rem;
    position: relative; z-index: 1; margin-bottom: 30px;
    color: var(--brand-light-green);
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}
.t-content h3 { font-size: 1.3rem; margin-bottom: 10px; }
.t-content { padding: 30px 24px; }

/* FAQ Accordion Premium */
.faq-accordion { max-width: 800px; margin: 0 auto; }
.faq-item { margin-bottom: 16px; cursor: pointer; padding: 0 !important; }

.faq-question {
    padding: 24px 30px; display: flex; justify-content: space-between; align-items: center;
}
.faq-question h3 { margin: 0; font-size: 1.15rem; font-weight: 600; color: #fff; }
.faq-icon-wrapper {
    width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--border-subtle);
    display: flex; align-items: center; justify-content: center;
}
.faq-icon {
    position: relative; width: 12px; height: 2px; background: var(--text-primary); transition: 0.3s;
}
.faq-icon::after {
    content: ''; position: absolute; width: 2px; height: 12px; background: var(--text-primary);
    top: -5px; left: 5px; transition: 0.3s;
}
.faq-item.active .faq-icon::after { transform: rotate(90deg); opacity: 0; }
.faq-item.active .faq-question { border-bottom: 1px solid var(--border-subtle); background: rgba(255,255,255,0.02); }

.faq-answer {
    max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0, 1, 0, 1);
}
.faq-answer p { padding: 24px 30px; margin: 0; color: var(--text-secondary); }
.faq-item.active .faq-answer { max-height: 1000px; transition: max-height 0.6s ease-in-out; }

/* WA Form Contact */
.cta-box { padding: 60px; }
.cta-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;}
.cta-text-area h2 { font-size: 2.5rem; margin-bottom: 20px; }
.c-method {
    display: flex; align-items: center; gap: 15px; margin-bottom: 15px;
    font-size: 1.1rem; font-weight: 500; color: var(--text-primary);
}
.c-icon {
    width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.05);
    display: flex; align-items: center; justify-content: center; border: 1px solid var(--border-subtle);
}

.premium-form .form-row { display: flex; gap: 20px; margin-bottom: 20px; }
.premium-form .form-group { flex: 1; margin-bottom: 20px; }
.premium-form input {
    width: 100%; padding: 18px 20px; background: rgba(0,0,0,0.3); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm); color: #fff; font-family: inherit; font-size: 1rem;
    transition: var(--transition-fast);
}
.premium-form input:focus { outline: none; border-color: var(--brand-light-green); background: rgba(0,0,0,0.5); }
.premium-form input::placeholder { color: var(--text-muted); }
.form-hint { text-align: center; font-size: 0.85rem; margin-top: 16px; color: var(--text-muted); }

/* Footer */
.footer { border-top: 1px solid var(--border-subtle); padding: 80px 0 20px; background: var(--bg-base); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
.f-brand img { height: 90px; margin-bottom: 24px; background: rgba(255, 255, 255, 0.65); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.3); padding: 12px 20px; border-radius: var(--radius-md); }
.footer h4 { color: #fff; margin-bottom: 24px; font-size: 1.1rem; }
.footer ul li { margin-bottom: 12px; }
.footer a { color: var(--text-secondary); }
.footer a:hover { color: var(--brand-light-green); }
.footer-bottom { border-top: 1px solid var(--border-subtle); padding-top: 24px; text-align: center; font-size: 0.9rem; color: var(--text-muted); }

/* Custom Animations */
.reveal {
    opacity: 0;
    visibility: hidden;
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.active { opacity: 1; visibility: visible; }
.fade-up { transform: translateY(40px); }
.fade-up.active { transform: translateY(0); }
.d-1 { transition-delay: 0.1s; }
.d-2 { transition-delay: 0.2s; }
.d-3 { transition-delay: 0.3s; }
.d-4 { transition-delay: 0.4s; }

/* Responsive Adjustments */
@media(max-width: 1024px) {
    .feature-row, .feature-row.reverse { flex-direction: column; }
    .inventory-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .timeline { grid-template-columns: 1fr 1fr; }
    .t-line { display: none; }
}

@media(max-width: 768px) {
    .main-nav {
        position: fixed; top: var(--header-height); left: -100%;
        width: 100%; height: calc(100vh - var(--header-height));
        background: rgba(5, 10, 18, 0.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
        flex-direction: column; justify-content: center; padding: 40px;
        transition: var(--transition-smooth);
    }
    .main-nav.active { left: 0; }
    .main-nav ul { flex-direction: column; align-items: center; }
    .mobile-menu-toggle { display: block; }
    .mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg); top: 11px; }
    .mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
    .mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg); top: 11px; }
    
    .trust-container { justify-content: center; }
    .cta-layout { grid-template-columns: 1fr; }
    .premium-form .form-row { flex-direction: column; gap: 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .timeline { grid-template-columns: 1fr; }
    
    .glass-card, .cta-box { padding: 30px 20px; }
    .section { padding: 80px 0; }
}