:root {
    --primary: #102a43; /* Deep corporate blue */
    --accent: #2160c4; /* Vibrant sapphire blue */
    --accent-light: #e6f1ff;
    --text-main: #243b53;
    --text-muted: #627d98;
    --bg-light: #f7f9fb;
    --white: #ffffff;
    --border: #d9e2ec;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-heavy: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.6;
}

.italic { font-family: 'Playfair Display', serif; font-style: italic; }
.highlight { color: var(--accent); }
.italic.highlight { font-weight: 700; font-size: 1.1em; color: var(--accent); }

h1, h2, h3 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    margin-left: 30px;
    font-weight: 600;
    transition: color 0.3s;
    font-size: 0.9rem;
}

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

/* HERO */
.hero {
    height: 90vh;
    display: flex;
    align-items: center;
    background: url('assets/hero.png') center/cover no-repeat;
    position: relative;
    color: var(--white);
    padding: 0;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(16, 42, 67, 0.9), rgba(16, 42, 67, 0.4));
}

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

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--white);
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 1.25rem;
    font-weight: 300;
    margin-bottom: 40px;
    color: rgba(255,255,255,0.8);
}

/* BUTTONS */
.btn-primary, .btn-primary-large {
    background: var(--accent);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary-large { padding: 18px 40px; font-size: 1.1rem; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: var(--shadow-heavy); filter: brightness(1.1); }

.btn-outline {
    border: 2px solid rgba(255,255,255,0.4);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-right: 15px;
    transition: all 0.3s;
    display: inline-block;
}

.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.1); }

/* GRIDS */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

@media (max-width: 768px) {
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .hero-actions { display: flex; flex-direction: column; gap: 15px; }
    .btn-outline { margin-right: 0; text-align: center; }
    .btn-primary { text-align: center; }
}

/* CARDS & COMPONENTS */
.section-tag {
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 2px;
    font-size: 0.8rem;
    margin-bottom: 10px;
}

h2 { font-size: 2.5rem; margin-bottom: 25px; }

.section-desc { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 50px; }

.card {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border: 1px solid var(--border);
}

.card:hover { transform: translateY(-10px); box-shadow: var(--shadow-heavy); }

.card-icon {
    width: 40px;
    height: 40px;
    color: var(--accent);
    margin-bottom: 20px;
}

/* GUIDE SECTION */
.check-list { list-style: none; margin-top: 30px; }
.check-list li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    font-weight: 600;
    color: var(--primary);
}

.check-list i { color: #10b981; margin-right: 12px; }

.img-floating {
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow-heavy);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* PLAN SECTION */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.step { position: relative; }
.step-num {
    font-size: 4rem;
    font-weight: 800;
    color: var(--accent-light);
    line-height: 1;
    margin-bottom: -15px;
}

/* PRODUCTS */
.product-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    border-left: 5px solid var(--accent);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.product-img img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
}

.notice-box {
    background: #fef3c7;
    border: 1px solid #fcd34d;
    padding: 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #92400e;
}

/* CONTACT */
.contact { background: var(--primary); color: var(--white); }
.contact h2 { color: var(--white); }
.contact p { color: rgba(255,255,255,0.7); font-size: 1.2rem; margin-bottom: 40px; }

.email-sub { font-size: 0.8rem !important; margin-top: 15px; }

/* FOOTER */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-muted);
}

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

@media (max-width: 640px) {
    .footer-content { flex-direction: column; gap: 20px; text-align: center; }
}

/* ANIMATIONS */
.fade-in { animation: fadeIn 1s forwards; }
.fade-in-delayed { opacity: 0; animation: fadeIn 1s 0.3s forwards; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}