/* ============================================
   Bandung Ekspor - Landing Page Stylesheet
   Color: Grey & Black Dominant
   ============================================ */

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --black: #0a0a0a;
    --dark: #1a1a1a;
    --dark-2: #222222;
    --grey-900: #2d2d2d;
    --grey-800: #3a3a3a;
    --grey-700: #4a4a4a;
    --grey-600: #666666;
    --grey-500: #888888;
    --grey-400: #aaaaaa;
    --grey-300: #cccccc;
    --grey-200: #e0e0e0;
    --grey-100: #f0f0f0;
    --white: #ffffff;
    --accent: #e8e8e8;
    --accent-bright: #ffffff;
    --success: #4ade80;
    --warning: #facc15;
    --danger: #f87171;
    --info: #60a5fa;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 30px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 60px rgba(0,0,0,0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--black);
    color: var(--grey-300);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

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

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 2px 30px rgba(0,0,0,0.5);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    font-size: 28px;
    filter: grayscale(100%) brightness(2);
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
}

.logo-accent {
    color: var(--grey-400);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
}

.nav-link {
    color: var(--grey-400);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.08);
}

.btn-nav {
    background: var(--white) !important;
    color: var(--black) !important;
    font-weight: 600 !important;
    border-radius: 8px;
    padding: 8px 20px !important;
}

.btn-nav:hover {
    background: var(--grey-200) !important;
    transform: translateY(-1px);
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--black) 0%, var(--dark) 50%, var(--grey-900) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.03) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to top, var(--black), transparent);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 120px 0 80px;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--grey-400);
    margin-bottom: 24px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(40px, 7vw, 72px);
    font-weight: 900;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.text-accent {
    background: linear-gradient(135deg, var(--grey-300), var(--grey-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--grey-500);
    max-width: 560px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -1px;
}

.stat-label {
    font-size: 13px;
    color: var(--grey-600);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--grey-200);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255,255,255,0.1);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--grey-700);
}

.btn-outline:hover {
    border-color: var(--grey-400);
    background: rgba(255,255,255,0.05);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    font-size: 16px;
}

/* ============================================
   Tracking Section
   ============================================ */
.tracking-section {
    padding: 100px 0;
    background: var(--black);
    position: relative;
}

.tracking-card {
    background: var(--dark);
    border: 1px solid var(--grey-800);
    border-radius: var(--radius-lg);
    padding: 48px;
    position: relative;
    overflow: hidden;
}

.tracking-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.tracking-header {
    text-align: center;
    margin-bottom: 32px;
}

.section-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.section-desc {
    color: var(--grey-500);
    font-size: 16px;
}

.tracking-form {
    margin-bottom: 8px;
}

.tracking-input-group {
    display: flex;
    gap: 12px;
    max-width: 600px;
    margin: 0 auto;
}

.tracking-input-group input {
    flex: 1;
    padding: 16px 20px;
    background: var(--grey-900);
    border: 1px solid var(--grey-800);
    border-radius: 10px;
    color: var(--white);
    font-family: inherit;
    font-size: 15px;
    outline: none;
    transition: var(--transition);
}

.tracking-input-group input:focus {
    border-color: var(--grey-600);
    background: var(--dark-2);
}

.tracking-input-group input::placeholder {
    color: var(--grey-600);
}

.tracking-input-group .btn {
    padding: 16px 32px;
    flex-shrink: 0;
}

.btn-reset {
    background: var(--grey-700);
    color: var(--grey-200);
    border: 1px solid var(--grey-600);
}

.btn-reset:hover {
    background: var(--grey-600);
    color: #fff;
}

/* Tracking Results */
.tracking-result {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--grey-800);
}

.error-result {
    text-align: center;
    padding: 32px;
}

.error-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.error-result p {
    color: var(--danger);
    font-size: 16px;
}

.result-summary {
    margin-bottom: 32px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.result-number .label {
    display: block;
    font-size: 12px;
    color: var(--grey-600);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.result-number .value {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
}

.result-status {
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-in-transit {
    background: rgba(96, 165, 250, 0.15);
    color: var(--info);
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.status-delivered {
    background: rgba(74, 222, 128, 0.15);
    color: var(--success);
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.status-picked-up {
    background: rgba(250, 204, 21, 0.15);
    color: var(--warning);
    border: 1px solid rgba(250, 204, 21, 0.3);
}

.result-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    padding: 24px;
    background: var(--grey-900);
    border-radius: var(--radius);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 12px;
    color: var(--grey-600);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.detail-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
}

/* Timeline */
.timeline {
    padding-top: 8px;
}

.timeline-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 24px;
}

.timeline-item {
    position: relative;
    padding-left: 32px;
    padding-bottom: 28px;
    border-left: 2px solid var(--grey-800);
    margin-left: 8px;
}

.timeline-item:last-child {
    padding-bottom: 0;
    border-left-color: transparent;
}

.timeline-dot {
    position: absolute;
    left: -7px;
    top: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--grey-700);
    border: 2px solid var(--dark);
}

.timeline-item.active .timeline-dot {
    background: var(--white);
    box-shadow: 0 0 12px rgba(255,255,255,0.3);
}

.timeline-date {
    font-size: 12px;
    color: var(--grey-500);
    margin-bottom: 4px;
}

.timeline-status {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 2px;
}

.timeline-detail {
    font-size: 14px;
    color: var(--grey-400);
    margin-bottom: 2px;
}

.timeline-location {
    font-size: 13px;
    color: var(--grey-600);
}

/* ============================================
   Services Section
   ============================================ */
.services-section {
    padding: 100px 0;
    background: var(--dark);
}

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

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--grey-400);
    margin-bottom: 16px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--dark-2);
    border: 1px solid var(--grey-800);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--grey-700);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

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

.service-icon {
    font-size: 36px;
    margin-bottom: 20px;
    filter: grayscale(50%);
}

.service-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--grey-500);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255,255,255,0.06);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--grey-400);
    letter-spacing: 0.5px;
}

/* ============================================
   How It Works
   ============================================ */
.how-section {
    padding: 100px 0;
    background: var(--black);
}

.steps-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 200px;
    max-width: 260px;
    text-align: center;
    padding: 32px 20px;
}

.step-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--grey-800);
    margin-bottom: 16px;
    line-height: 1;
}

.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.step-card p {
    font-size: 14px;
    color: var(--grey-500);
    line-height: 1.7;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--grey-800), var(--grey-700));
    margin-top: 55px;
    flex-shrink: 0;
}

/* ============================================
   About Section
   ============================================ */
.about-section {
    padding: 100px 0;
    background: var(--dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content .section-title {
    text-align: left;
}

.about-content p {
    color: var(--grey-500);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--grey-300);
}

.feature-check {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: rgba(255,255,255,0.08);
    border-radius: 6px;
    font-size: 12px;
    color: var(--white);
    flex-shrink: 0;
}

.about-image {
    display: flex;
    justify-content: center;
}

.about-img-placeholder {
    width: 100%;
    max-width: 420px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--grey-900), var(--dark-2));
    border: 1px solid var(--grey-800);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.about-img-placeholder span {
    font-size: 80px;
    filter: grayscale(100%) brightness(0.6);
}

.about-img-placeholder p {
    color: var(--grey-600);
    font-size: 14px;
    font-weight: 500;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    padding: 60px 0;
    background: var(--black);
}

.cta-card {
    text-align: center;
    padding: 64px 40px;
    background: linear-gradient(135deg, var(--grey-900), var(--dark-2));
    border: 1px solid var(--grey-800);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

.cta-card h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.cta-card p {
    color: var(--grey-500);
    max-width: 560px;
    margin: 0 auto 32px;
    font-size: 16px;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-section {
    padding: 100px 0;
    background: var(--dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-content: start;
}

.contact-card {
    background: var(--dark-2);
    border: 1px solid var(--grey-800);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--grey-700);
}

.contact-icon {
    font-size: 28px;
    margin-bottom: 12px;
    filter: grayscale(50%);
}

.contact-card h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 13px;
    color: var(--grey-500);
    line-height: 1.7;
}

.contact-form-wrapper {
    background: var(--dark-2);
    border: 1px solid var(--grey-800);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--grey-400);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--grey-900);
    border: 1px solid var(--grey-800);
    border-radius: 8px;
    color: var(--white);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--grey-600);
    background: var(--dark);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--grey-700);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 80px 0 0;
    background: var(--black);
    border-top: 1px solid var(--grey-900);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand p {
    color: var(--grey-600);
    font-size: 14px;
    line-height: 1.7;
    margin-top: 16px;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

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

.footer-links a {
    font-size: 14px;
    color: var(--grey-600);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--grey-900);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--grey-700);
}

/* ============================================
   Mobile Responsive
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
    }

    .about-img-placeholder {
        max-width: 300px;
        aspect-ratio: auto;
        padding: 60px;
    }
}

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

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 8px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.open {
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        font-size: 20px;
        padding: 12px 24px;
    }

    .btn-nav {
        margin-top: 16px;
        font-size: 18px !important;
        padding: 14px 32px !important;
    }

    .hero-content {
        padding: 100px 16px 60px;
    }

    .hero-title {
        letter-spacing: -1px;
    }

    .hero-stats {
        gap: 32px;
    }

    .tracking-card {
        padding: 32px 20px;
    }

    .tracking-input-group {
        flex-direction: column;
    }

    .tracking-input-group .btn {
        width: 100%;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        flex-direction: column;
        align-items: center;
    }

    .step-connector {
        width: 2px;
        height: 30px;
        margin: 0;
        background: linear-gradient(180deg, var(--grey-800), var(--grey-700));
    }

    .step-card {
        max-width: 100%;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }

    .contact-form .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .cta-card {
        padding: 40px 24px;
    }

    .cta-card h2 {
        font-size: 28px;
    }

    .result-details {
        grid-template-columns: 1fr 1fr;
    }

    .section-title {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

    .hero-content {
        padding: 100px 8px 60px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-number {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .result-details {
        grid-template-columns: 1fr;
        padding: 16px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .cta-actions {
        flex-direction: column;
    }

    .cta-actions .btn {
        width: 100%;
    }
}

/* ============================================
   WhatsApp Floating Button
   ============================================ */
.btn-whatsapp {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 999;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
}

.btn-whatsapp:hover {
    background: #1ebe5d;
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

/* ============================================
   Scroll to Top Button
   ============================================ */
.btn-scroll-top {
    position: fixed;
    bottom: 28px;
    right: 96px;
    z-index: 999;
    width: 48px;
    height: 48px;
    background: var(--grey-800);
    border: 1px solid var(--grey-700);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
}

.btn-scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.btn-scroll-top:hover {
    background: var(--grey-700);
    border-color: var(--grey-600);
    transform: translateY(-2px);
}

@media (max-width: 480px) {
    .btn-whatsapp {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }

    .btn-scroll-top {
        bottom: 20px;
        right: 80px;
        width: 42px;
        height: 42px;
    }
}