/**
 * LANDING PAGE V2 - MODERN DESIGN SYSTEM
 * Sistem Reka Bentuk Moden untuk Halaman Utama V2
 *
 * Design Philosophy: Minimalist, conversion-focused, mobile-first
 * Falsafah Reka Bentuk: Minimalis, fokus penukaran, mobile-first
 *
 * Color Palette / Palet Warna:
 * - Primary: #1e40af (Deep Blue - Trust)
 * - Secondary: #8b5cf6 (Purple - Premium)
 * - Accent: #10b981 (Emerald - Success)
 * - Neutral: #1f2937 (Dark Gray)
 */

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

:root {
    /* Colors / Warna */
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --secondary: #8b5cf6;
    --secondary-dark: #7c3aed;
    --accent: #10b981;
    --accent-dark: #059669;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border: #e5e7eb;

    /* Typography / Tipografi */
    --font-primary: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-base: 16px;

    /* Spacing / Jarak */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius / Radius Sempadan */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;

    /* Shadows / Bayang */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions / Peralihan */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: var(--bg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   TYPOGRAPHY / TIPOGRAFI
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: 3.75rem; } /* 60px */
h2 { font-size: 3rem; }    /* 48px */
h3 { font-size: 2.25rem; } /* 36px */
h4 { font-size: 1.5rem; }  /* 24px */
h5 { font-size: 1.25rem; } /* 20px */
h6 { font-size: 1rem; }    /* 16px */

p {
    font-size: 1.125rem; /* 18px */
    line-height: 1.75;
    color: var(--text-secondary);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   LAYOUT & CONTAINER
   ======================================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: var(--spacing-2xl) 0;
}

/* ========================================
   NAVIGATION / NAVIGASI
   ======================================== */

.nav-v2 {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition-base);
}

.nav-v2.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* ========================================
   BUTTONS / BUTANG
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(30, 64, 175, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(30, 64, 175, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* ========================================
   HERO SECTION / BAHAGIAN HERO
   ======================================== */

.hero-v2 {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #f0f9ff 0%, #f5f3ff 100%);
    position: relative;
    overflow: hidden;
}

.hero-v2::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero-v2::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(30, 64, 175, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: white;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    justify-content: center;
}

.hero-trust {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

.hero-avatars {
    display: flex;
    margin-left: -0.5rem;
}

.hero-avatars img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 3px solid white;
    margin-left: -0.5rem;
}

.hero-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stars {
    color: #fbbf24;
}

/* ========================================
   SOCIAL PROOF BAR
   ======================================== */

.social-proof-bar {
    background: white;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 2rem 0;
}

.social-proof-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    text-align: center;
}

.social-proof-text {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
    font-weight: 600;
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
    align-items: center;
    width: 100%;
}

.logo-item {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0.6;
    transition: opacity var(--transition-base);
}

.logo-item:hover {
    opacity: 1;
}

/* ========================================
   PROBLEM SECTION
   ======================================== */

.problem-section {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.problem-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.problem-icon i {
    font-size: 1.75rem;
    color: #dc2626;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.problem-card p {
    font-size: 1rem;
    line-height: 1.7;
}

/* ========================================
   SOLUTION/FEATURE CARDS
   ======================================== */

.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.feature-card-v2 {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.feature-card-v2:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.15);
}

.feature-icon-v2 {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon-v2 i {
    font-size: 2rem;
    color: white;
}

.feature-card-v2 h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-benefit {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.feature-list i {
    color: var(--accent);
    margin-top: 0.25rem;
}

/* ========================================
   PRICING SECTION / BAHAGIAN HARGA
   ======================================== */

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card-v2 {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    position: relative;
    transition: all var(--transition-base);
}

.pricing-card-v2:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card-v2.popular {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
}

.pricing-name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin: 1.5rem 0;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.amount {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.period {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-top: 1px solid var(--border);
}

.pricing-features li:first-child {
    border-top: none;
}

.pricing-features i {
    color: var(--accent);
    margin-top: 0.25rem;
    font-size: 1.125rem;
}

/* ========================================
   ANIMATIONS / ANIMASI
   ======================================== */

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ========================================
   RESPONSIVE / RESPONSIF
   Mobile-first approach
   ======================================== */

@media (min-width: 768px) {
    .nav-links { display: flex; }

    .hero-content {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }

    .hero-text { text-align: left; }

    .hero-cta {
        flex-direction: row;
        justify-content: flex-start;
    }

    .hero-trust {
        flex-direction: row;
        margin-top: 2rem;
    }

    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    h1 { font-size: 3.75rem; }

    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }

    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }

    .btn { padding: 0.75rem 1.5rem; }
    .btn-large { padding: 1rem 2rem; }

    section { padding: var(--spacing-xl) 0; }
}