/* ==========================================================================
   SAMUDRA FILTER AIR - MODERN DESIGN SYSTEM
   Matches exact layout, colors, typography and mobile responsiveness
   ========================================================================== */

:root {
    --primary: #0062cc;
    --primary-dark: #0a2540;
    --primary-deep: #071c33;
    --primary-light: #e6f0fa;
    --primary-gradient: linear-gradient(145deg, #08305c 0%, #0056b3 55%, #0077d8 100%);
    --primary-gradient-subtle: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
    --accent-cyan: #00b4d8;
    --accent-gold: #ffb703;
    --whatsapp-green: #25D366;
    --whatsapp-green-dark: #128C7E;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --bg-surface: #ffffff;
    --bg-soft: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --border-focus: #0062cc;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-pill: 9999px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 25px -5px rgba(10, 37, 64, 0.08);
    --shadow-lg: 0 20px 35px -8px rgba(0, 98, 204, 0.14);
    --shadow-hover: 0 22px 40px -10px rgba(0, 85, 185, 0.22);
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    background-color: var(--bg-surface);
    line-height: 1.6;
    overflow-x: hidden;
    padding-bottom: 0; /* no sticky floating bottom bar */
}

section, footer {
    scroll-margin-top: 75px;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
}

/* ==========================================================================
   LAYOUT CONTAINERS & UTILITIES
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1180px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

.section-padding {
    padding-top: 65px;
    padding-bottom: 65px;
}

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

.section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    background-color: #e0f2fe;
    color: #0284c7;
    margin-bottom: 14px;
}

.section-badge.badge-white {
    background-color: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    backdrop-filter: blur(8px);
}

.section-title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1.3;
    margin-bottom: 12px;
}

.section-title.title-white {
    color: #ffffff;
}

.section-subtitle {
    font-size: 0.98rem;
    color: var(--text-muted);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 35px;
}

/* ==========================================================================
   HEADER / NAVBAR
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 30, 60, 0.05);
    transition: var(--transition-fast);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
}

.brand-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-logo-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0077b6, #00b4d8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.35rem;
    box-shadow: 0 4px 14px rgba(0, 119, 182, 0.35);
    flex-shrink: 0;
}

.brand-logo-img {
    height: 48px;
    width: auto;
    max-width: 58px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.brand-wrapper:hover .brand-logo-img {
    transform: scale(1.05);
}

.brand-logo-footer {
    height: 52px;
    max-width: 65px;
    background: #ffffff;
    padding: 3px 6px;
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

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

.brand-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary-dark);
    letter-spacing: -0.3px;
    line-height: 1.15;
}

.brand-sub {
    font-size: 0.72rem;
    font-weight: 700;
    color: #0284c7;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.nav-wrapper {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
    list-style: none;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: #334155;
    padding: 8px 4px;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    font-weight: 700;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2.5px;
    border-radius: 2px;
    background-color: var(--primary);
    transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-header-wa {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background-color: var(--whatsapp-green);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-pill);
    font-size: 0.88rem;
    font-weight: 800;
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
}

.btn-header-wa:hover {
    background-color: var(--whatsapp-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(18, 140, 126, 0.4);
    color: #ffffff;
}

.btn-header-wa i {
    font-size: 1.15rem;
}

.mobile-menu-toggle {
    display: none;
    background: #f1f5f9;
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    font-size: 1.4rem;
    color: var(--primary-dark);
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    background: linear-gradient(155deg, #074296 0%, #0052cc 45%, #026aa7 80%, #0088cc 100%);
    color: #ffffff;
    padding-top: 50px;
    padding-bottom: 65px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -150px;
    right: -150px;
    width: 450px;
    height: 450px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.25) 0%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.hero-rating-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 6px 18px;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 18px;
}

.hero-rating-badge .stars {
    color: var(--accent-gold);
    letter-spacing: 2px;
}

.hero-tag-pill {
    display: inline-block;
    background: rgba(0, 180, 216, 0.2);
    border: 1px solid rgba(0, 180, 216, 0.4);
    color: #bbf7d0;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    padding: 5px 16px;
    border-radius: var(--radius-pill);
    margin-bottom: 16px;
}

.hero-title {
    font-size: 2.1rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}

.hero-description {
    font-size: 0.98rem;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 28px;
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 35px;
}

.btn-hero-wa {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background-color: #ffffff;
    color: #0b3b70;
    padding: 13px 26px;
    border-radius: var(--radius-pill);
    font-size: 0.95rem;
    font-weight: 800;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: var(--transition-smooth);
    border: none;
    cursor: pointer;
}

.btn-hero-wa:hover {
    transform: translateY(-3px);
    background-color: #f8fafc;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
    color: #0284c7;
}

.btn-hero-wa i {
    color: var(--whatsapp-green);
    font-size: 1.25rem;
}

.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 24px;
    background-color: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-pill);
    font-size: 0.92rem;
    font-weight: 700;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-hero-secondary:hover {
    background-color: rgba(255, 255, 255, 0.22);
    border-color: #ffffff;
    transform: translateY(-2px);
}

.hero-image-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 20px 45px rgba(0, 15, 35, 0.4);
    border: 3px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 30px;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.hero-image-card img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    object-position: center 25%;
    transition: transform 0.5s ease;
}

.hero-image-card:hover img {
    transform: scale(1.03);
}

.hero-image-badge {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(10, 37, 64, 0.85);
    backdrop-filter: blur(10px);
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 8px 18px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.hero-stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

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

.stat-number {
    font-size: 1.7rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.1;
}

.stat-label {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services-section {
    background-color: var(--bg-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.service-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card-image-wrap {
    width: 100%;
    aspect-ratio: 1 / 1;
    position: relative;
    overflow: hidden;
    background-color: #08294d;
}

.service-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.service-card:hover .service-card-image {
    transform: scale(1.05);
}

.service-badge-overlay {
    position: absolute;
    top: 14px;
    left: 14px;
    font-size: 0.72rem;
    font-weight: 800;
    color: #ffffff;
    background: rgba(10, 37, 64, 0.85);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.service-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0077b6, #00b4d8);
    opacity: 0;
    transition: var(--transition-fast);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: #bae6fd;
}

.service-card:hover::before {
    opacity: 1;
}

.service-badge {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 700;
    color: #0284c7;
    background-color: #f0f9ff;
    border: 1px solid #bae6fd;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    margin-bottom: 16px;
}

.service-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 10px;
    line-height: 1.3;
}

.service-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-size: 0.92rem;
    font-weight: 700;
    margin-top: auto;
}

.service-link:hover {
    color: #0284c7;
    gap: 10px;
}

/* ==========================================================================
   WHY CHOOSE US (KEUNGGULAN)
   ========================================================================== */
.why-us-section {
    background-color: var(--bg-soft);
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 32px;
    align-items: center;
    margin-top: 10px;
}

.why-us-banner-wrapper {
    display: flex;
    justify-content: center;
}

.why-us-banner-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 3px solid rgba(2, 132, 199, 0.2);
    transition: var(--transition-smooth);
    background: #0b3b70;
}

.why-us-banner-card img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.why-us-banner-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.why-us-banner-card:hover img {
    transform: scale(1.02);
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    display: flex;
    align-items: flex-start;
    gap: 18px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.feature-item:hover {
    border-color: #0284c7;
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.feature-icon-box {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    border-radius: 12px;
    background: linear-gradient(135deg, #0077b6, #0056b3);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.2);
}

.feature-content {
    flex-grow: 1;
}

.feature-title {
    font-size: 1.12rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 6px;
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.55;
}

/* ==========================================================================
   MID-PAGE CTA BANNER
   ========================================================================== */
.mid-cta-section {
    padding-top: 30px;
    padding-bottom: 30px;
}

.mid-cta-banner {
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    padding: 45px 30px;
    text-align: center;
    color: #ffffff;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.mid-cta-banner::before {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
}

.mid-cta-title {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.3;
}

.mid-cta-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 25px;
}

.btn-cta-white {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: #ffffff;
    color: #0b3b70;
    padding: 13px 30px;
    border-radius: var(--radius-pill);
    font-size: 0.95rem;
    font-weight: 800;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    transition: var(--transition-smooth);
}

.btn-cta-white:hover {
    transform: translateY(-3px);
    background-color: #f1f5f9;
    color: #0284c7;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
}

/* ==========================================================================
   PORTFOLIO SECTION
   ========================================================================== */
.portfolio-section {
    background-color: var(--bg-surface);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 26px;
}

.portfolio-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: #bae6fd;
}

.portfolio-image-wrapper {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    position: relative;
    background-color: #f1f5f9;
}

.portfolio-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.portfolio-card:hover .portfolio-image-wrapper img {
    transform: scale(1.05);
}

.portfolio-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 0.72rem;
    font-weight: 800;
    color: #ffffff;
    background-color: rgba(10, 37, 64, 0.85);
    backdrop-filter: blur(6px);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.5px;
}

.portfolio-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.portfolio-category {
    font-size: 0.72rem;
    font-weight: 800;
    color: #0284c7;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.portfolio-title {
    font-size: 1.18rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 8px;
    line-height: 1.35;
}

.portfolio-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 14px;
    flex-grow: 1;
}

.portfolio-meta {
    font-size: 0.8rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
}

/* ==========================================================================
   TESTIMONIALS SECTION
   ========================================================================== */
.testimonials-section {
    background-color: var(--bg-soft);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

.testimonial-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.testimonial-card:hover {
    border-color: #0284c7;
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.testimonial-stars {
    color: var(--accent-gold);
    font-size: 1rem;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.testimonial-quote {
    font-size: 0.92rem;
    color: var(--text-main);
    line-height: 1.6;
    margin-bottom: 18px;
    flex-grow: 1;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0077b6, #90e0ef);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.author-location {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ==========================================================================
   ARTICLE / SEO SECTION
   ========================================================================== */
.article-section {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
}

.article-card {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 35px 30px;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}

.article-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.article-header-icon {
    font-size: 1.4rem;
    color: var(--primary);
}

.article-main-title {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.article-content {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.article-content p {
    margin-bottom: 14px;
}

.article-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-top: 20px;
    margin-bottom: 10px;
}

.article-content ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.article-content li {
    margin-bottom: 6px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
    background-color: var(--primary-deep);
    color: #e2e8f0;
    padding-top: 55px;
    padding-bottom: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 8px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 2px;
    background-color: var(--accent-cyan);
}

.footer-desc {
    font-size: 0.88rem;
    color: #94a3b8;
    line-height: 1.6;
    margin-top: 12px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.88rem;
}

.footer-links a:hover {
    color: #ffffff;
    padding-left: 4px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.88rem;
    color: #94a3b8;
}

.footer-contact-item i {
    color: var(--accent-cyan);
    font-size: 1.1rem;
    margin-top: 3px;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 22px;
    font-size: 0.82rem;
    color: #64748b;
}

/* Sticky floating WhatsApp bar removed as per user preference (tidak ikut melayang saat discroll) */
.sticky-wa-bar {
    display: none !important;
}

/* ==========================================================================
   MODAL KONSULTASI / FAST BOOKING
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 37, 64, 0.7);
    backdrop-filter: blur(6px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: #ffffff;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 520px;
    padding: 30px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    animation: modal-pop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modal-pop {
    from { opacity: 0; transform: scale(0.92) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close-btn {
    position: absolute;
    top: 18px;
    right: 18px;
    background: #f1f5f9;
    border: none;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close-btn:hover {
    background: #e2e8f0;
    color: var(--text-main);
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    color: var(--text-main);
    background-color: #ffffff;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 98, 204, 0.15);
}

.btn-submit-booking {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-pill);
    font-size: 0.95rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
    transition: var(--transition-fast);
}

.btn-submit-booking:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MOBILE & TABLET)
   ========================================================================== */
@media (max-width: 991px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .header-actions .btn-header-wa {
        display: none;
    }

    .why-us-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.55rem;
    }

    .hero-title {
        font-size: 1.65rem;
    }

    .hero-image-card img {
        height: 240px;
    }

    .feature-item {
        flex-direction: column;
        gap: 12px;
    }

    .mid-cta-banner {
        padding: 30px 20px;
    }

    .mid-cta-title {
        font-size: 1.45rem;
    }
}