/* ========================================
   CBT INFORMAN - PREMIUM STYLESHEET
   Version: 1.1 | 2026
========================================
*/

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --dark: #0f172a;
    --secondary: #64748b;
    --accent: #f59e0b;
    --light: #f8fafc;
    --white: #ffffff;
    --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* 1. Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--white);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 2. Header & Navigation */
header {
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 1000;
}

.promo-banner {
    background: linear-gradient(90deg, var(--dark), #1e293b);
    color: var(--white);
    padding: 12px 0;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

nav {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    padding: 18px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 26px;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 35px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
}

.nav-links a:hover {
    color: black;
}

/* 3. Hero Section */
.hero {
    padding: 180px 0 100px;
    background: radial-gradient(circle at top right, #5aabed, #ffffff);
}

.hero-flex {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.tagline {
    color: var(--primary);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 13px;
    display: block;
    margin-bottom: 15px;
}

.hero-text h1 {
    font-size: 56px;
    line-height: 1.1;
    margin-bottom: 25px;
    font-weight: 800;
}

.text-gradient {
    background: linear-gradient(90deg, var(--primary), #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 18px;
    color: var(--secondary);
    margin-bottom: 35px;
    max-width: 500px;
}

.hero-img {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-img img {
    width: 100%;
    max-width: 550px;
    filter: drop-shadow(0 20px 50px rgba(0,0,0,0.1));
}

/* 4. Features Section */
.features {
    padding: 100px 0;
    background-color: var(--light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.f-card {
    background: var(--white);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(0,0,0,0.03);
    transition: var(--transition);
}

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

.icon-box {
    width: 60px;
    height: 60px;
    background: #eff6ff;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    margin-bottom: 25px;
}

/* 5. Pricing Section */
.pricing {
    padding: 100px 0;
}

.pricing-wrapper {
    display: flex;
    gap: 30px;
    justify-content: center;
    align-items: flex-end;
    margin-top: 60px;
}

.p-card {
    background: var(--white);
    border: 1px solid #e2e8f0;
    padding: 50px 40px;
    border-radius: 24px;
    width: 100%;
    max-width: 380px;
    text-align: center;
    transition: var(--transition);
}

.p-card.recommended {
    border: 2px solid var(--primary);
    box-shadow: 0 25px 50px -12px rgba(37, 99, 235, 0.15);
    position: relative;
    padding: 70px 40px 50px;
}

.pop-tag {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1px;
}

.price {
    font-size: 38px;
    font-weight: 800;
    margin: 25px 0;
}

.price span {
    font-size: 16px;
    color: var(--secondary);
    font-weight: 400;
}

.p-card ul {
    list-style: none;
    margin-bottom: 40px;
    text-align: left;
}

.p-card ul li {
    padding: 12px 0;
    color: var(--secondary);
    border-bottom: 1px dotted #e2e8f0;
}

/* 6. Buttons */
.btn-primary {
    background: var(--primary);
    color: var(--white);
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    background: #f1f5f9;
    color: var(--dark);
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    width: 100%;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: #e2e8f0;
}

.btn-demo {
    background:var(--primary);
    color: var(--white);
    padding: 12px 24px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
}
.btn-demo:hover{
    background:gray;
}

/* 7. Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 100px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand p {
    margin-top: 20px;
    color: #94a3b8;
    max-width: 300px;
}

.footer-nav h4, .footer-contact h4 {
    margin-bottom: 25px;
    font-size: 18px;
}

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

.footer-nav a {
    color: #94a3b8;
    text-decoration: none;
    display: block;
    margin-bottom: 15px;
    transition: var(--transition);
}

.footer-nav a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    color: #64748b;
    font-size: 14px;
}

/* 8. Mobile Responsive */
@media (max-width: 1024px) {
    .hero-text h1 { font-size: 42px; }
    .hero-flex { gap: 30px; }
}

@media (max-width: 768px) {
    .hero-flex { flex-direction: column; text-align: center; }
    .hero-text p { margin: 0 auto 35px; }
    .nav-links { display: none; } /* Idealnya pakai JS toggle menu */
    .pricing-wrapper { flex-direction: column; align-items: center; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero { padding: 150px 0 60px; }
}