/* CSS Variables based on provided image palette */
:root {
    --primary-navy: #122746; /* From image background */
    --primary-navy-dark: #0d1c33;
    --accent-orange: #EF7D00; /* From logo PindAI */
    --accent-orange-hover: #D96B27;
    --text-light: #F3F4F6;
    --text-muted: #9CA3AF;
    --text-dark: #1F2937;
    --bg-light: #FFFFFF;
    --bg-alt: #F8FAFC;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-dark: rgba(0, 0, 0, 0.1);
    
    /* Display defaults for bilingual system */
    --display-id: block;
    --display-en: none;
    --display-inline-id: inline-block;
    --display-inline-en: none;
}

/* Bilingual Toggle Logic */
body.show-en {
    --display-id: none;
    --display-en: block;
    --display-inline-id: none;
    --display-inline-en: inline-block;
}

.lang-id { display: var(--display-id); }
.lang-en { display: var(--display-en); }
span.lang-id, a.lang-id { display: var(--display-inline-id); }
span.lang-en, a.lang-en { display: var(--display-inline-en); }

/* Base Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography classes */
h1 { font-size: 2.5rem; font-weight: 800; line-height: 1.2; margin-bottom: 1.5rem; }
h2 { font-size: 2rem; font-weight: 700; line-height: 1.3; margin-bottom: 1rem; }
h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.75rem; }
p { margin-bottom: 1rem; }

.eyebrow {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
    color: var(--accent-orange);
    margin-bottom: 1rem;
}

.lede {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.text-center { text-align: center; }
.text-accent { color: var(--accent-orange); }

/* Sections */
section {
    padding: 5rem 0;
}
.pb-0 { padding-bottom: 0; }

.section-dark {
    background-color: var(--primary-navy);
    color: var(--text-light);
}

.section-light {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

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

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background-color: rgba(18, 39, 70, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-light);
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--accent-orange);
    font-weight: 600;
}

.nav-links {
    display: none; /* Hidden on mobile */
    gap: 2rem;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.lang-toggle-btn:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent-orange);
    color: white;
    border: 1px solid var(--accent-orange);
}

.btn-primary:hover {
    background-color: var(--accent-orange-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Hero Section */
#hero {
    padding-top: 8rem;
    padding-bottom: 4rem;
    border-left: 6px solid var(--accent-orange); /* Adding the accent line from the image */
}

.hero-content {
    max-width: 800px;
}

.hero-content h1 {
    font-size: 2.5rem;
}

.hero-content .subheadline {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 650px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

/* Stat Strip */
.stat-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent-orange);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

/* Region Pill */
.region-pill {
    display: inline-flex;
    align-items: center;
    background-color: var(--bg-alt);
    border: 1px solid var(--border-color-dark);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.region-pill .active {
    color: var(--accent-orange);
}

.region-pill .separator {
    margin: 0 0.5rem;
    color: #CBD5E1;
}

.about-body {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.125rem;
    color: #475569;
}

/* Grids */
.mobile-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

/* Cards */
.card {
    padding: 1.5rem;
    border-radius: 8px;
    height: 100%;
}

.card-dark {
    background-color: var(--primary-navy-dark);
    border: 1px solid var(--border-color);
}

.card-dark p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.card-light {
    background-color: var(--bg-alt);
    border: 1px solid var(--border-color-dark);
}

.card-light p {
    color: #475569;
    font-size: 0.9rem;
    margin: 0;
}

.border-accent {
    border-top: 3px solid var(--accent-orange);
}

.outcome-card {
    position: relative;
    padding-top: 2.5rem;
}

.outcome-number {
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    font-size: 2rem;
    font-weight: 800;
    color: rgba(239, 125, 0, 0.15); /* Faded orange */
    line-height: 1;
}

/* Strict 1 Col - Cara Kami Mengajar */
.strict-col-1 {
    display: flex;
    flex-direction: column;
    max-width: 600px;
    margin: 0 auto;
}

.step-card {
    display: flex;
    gap: 1.5rem;
    background-color: var(--primary-navy-dark);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.step-number {
    flex-shrink: 0;
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--accent-orange);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h3 { margin-bottom: 0.25rem; }
.step-content p { color: var(--text-muted); margin: 0; font-size: 0.95rem; }

.step-connector {
    width: 2px;
    height: 1.5rem;
    background-color: var(--border-color);
    margin-left: 2.75rem; /* Align with center of circle */
}

/* Tech Strip */
.tech-strip-container {
    background-color: var(--primary-navy-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.tech-prefix {
    font-weight: 700;
    color: var(--accent-orange);
    font-size: 0.9rem;
}

.tech-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.tech-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background-color: rgba(255,255,255,0.05);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    flex: 1;
    min-width: 200px;
}

.tech-badge strong {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-light);
}

.tech-badge span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Footer / CTA */
.footer-section {
    padding-top: 4rem;
    padding-bottom: 2rem;
}

.cta-box {
    background-color: var(--primary-navy-dark);
    border: 1px solid var(--accent-orange);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    margin-bottom: 4rem;
}

.cta-box p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.brand-line {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    max-width: 400px;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
}

.footer-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: #6B7280;
}

/* Responsive Overrides */
@media (min-width: 768px) {
    h1 { font-size: 3.5rem; }
    
    .nav-links { display: flex; }
    
    .desktop-grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .stat-strip {
        gap: 4rem;
    }

    .tech-strip-container {
        flex-direction: row;
        align-items: center;
        text-align: left;
    }

    .tech-prefix {
        flex-shrink: 0;
        margin-bottom: 0;
    }

    .tech-strip {
        justify-content: flex-start;
        flex-wrap: nowrap;
    }

    .tech-badge {
        align-items: flex-start;
        text-align: left;
    }

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .footer-meta {
        align-items: flex-end;
    }
}