/* CSS Stylesheet for Lotus Shades ISO Tank Decals Landing Page */

:root {
    --primary: #f59e0b;       /* Safety Amber */
    --primary-hover: #d97706; /* Darker Amber */
    --navy-dark: #0f172a;     /* Deep Slate Navy */
    --navy-card: #1e293b;     /* Card Navy */
    --slate-body: #334155;    /* Body text slate */
    --bg-light: #f8fafc;      /* Background light gray */
    --border-color: #e2e8f0;  /* Light border */
    --border-dark: #334155;   /* Dark border */
    --green-success: #10b981; /* Success Green */
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
    color: var(--slate-body);
    background-color: #ffffff;
    line-height: 1.6;
}

body {
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

/* Layout Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.bg-alt {
    background-color: var(--bg-light);
}

.bg-dark {
    background-color: var(--navy-dark);
}

.text-white {
    color: #ffffff;
}

.text-light {
    color: #94a3b8;
}

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

.gold-text {
    color: var(--primary) !important;
}

.highlight {
    color: var(--primary);
}

.highlight-green {
    color: var(--green-success);
    font-weight: 700;
}

/* Typography & Section Headers */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px auto;
}

.section-subtitle {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--primary-hover);
    margin-bottom: 8px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--navy-dark);
    line-height: 1.2;
    margin-bottom: 12px;
}

.bg-dark .section-header h2 {
    color: #ffffff;
}

.section-header p {
    font-size: 1.05rem;
    color: #64748b;
}

/* Badges & Buttons */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    text-transform: uppercase;
}

.badge-amber {
    background-color: rgba(245, 158, 11, 0.2);
    color: var(--primary-hover);
    border: 1px solid rgba(245, 158, 11, 0.4);
}

.badge-outline {
    border: 1px solid var(--border-color);
    color: #64748b;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s ease;
    border: none;
    outline: none;
}

.btn-lg {
    padding: 15px 32px;
    font-size: 1.05rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--navy-dark);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--navy-card);
    color: #ffffff;
    border: 1px solid var(--border-dark);
}

.btn-secondary:hover {
    background-color: #334155;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--navy-dark);
    border: 2px solid var(--navy-dark);
}

.btn-outline:hover {
    background-color: var(--navy-dark);
    color: #ffffff;
}

.btn-block {
    width: 100%;
}

/* Top Announcement Bar */
.top-bar {
    background-color: var(--navy-dark);
    color: #cbd5e1;
    font-size: 0.82rem;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.top-bar-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: underline;
}

/* Header & Navbar */
.header {
    background-color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.brand-logo {
    display: flex;
    align-items: center;
    transition: transform 0.2s ease;
}

.brand-logo:hover {
    transform: translateY(-2px);
}

.header-logo-img {
    height: 50px; /* Force a strict height */
    width: auto; /* Maintain aspect ratio */
    max-width: 100%;
    object-fit: contain; /* Ensure it stays within bounds */
    display: block;
    filter: drop-shadow(0px 0px 2px rgba(15, 23, 42, 1)) drop-shadow(0px 2px 5px rgba(15, 23, 42, 0.6));
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--navy-dark);
}

.sub-logo {
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: #64748b;
}

.nav-menu {
    display: flex;
    gap: 28px;
}

.nav-link {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--slate-body);
    transition: color 0.2s ease;
}

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

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--navy-dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.98) 100%),
                url('https://images.unsplash.com/photo-1578575437130-527eed3abbec?auto=format&fit=crop&q=80') center/cover;
    color: #ffffff;
    padding: 90px 0 100px 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 158, 11, 0.15);
    color: var(--primary);
    border: 1px solid rgba(245, 158, 11, 0.3);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 30px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1.1rem;
    color: #cbd5e1;
    margin-bottom: 30px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.hero-trust {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: #94a3b8;
    flex-wrap: wrap;
}

.hero-trust i {
    color: var(--green-success);
    margin-right: 4px;
}

/* Hero Card Preview */
.hero-card {
    background-color: var(--navy-card);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-lg);
}

.hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.hero-card-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
}

.tank-preview-box {
    background-color: #0b1120;
    border-radius: var(--radius-md);
    padding: 30px 15px;
    margin-bottom: 20px;
    border: 1px dashed #334155;
    text-align: center;
}

.tank-body {
    border: 3px solid #475569;
    border-radius: 40px;
    padding: 25px 15px;
    background: radial-gradient(circle, #1e293b 0%, #0f172a 100%);
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.decal-element {
    font-family: monospace;
    font-weight: 800;
    border-radius: 4px;
    padding: 2px 8px;
}

.decal-logo {
    background-color: var(--primary);
    color: #000;
    font-size: 0.9rem;
}

.decal-code {
    border: 1px solid #ffffff;
    color: #ffffff;
    font-size: 0.85rem;
}

.decal-hazard {
    background-color: #ef4444;
    color: #ffffff;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(45deg);
    font-size: 0.75rem;
    margin: 6px 0;
}

.decal-un {
    background-color: #f97316;
    color: #000000;
    border: 2px solid #000000;
    font-size: 0.75rem;
}

.decal-spec {
    font-size: 0.65rem;
    color: #94a3b8;
}

.hero-card-features {
    display: flex;
    justify-content: space-between;
    gap: 8px;
}

.feat-pill {
    background-color: #0f172a;
    font-size: 0.72rem;
    color: #cbd5e1;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid #334155;
}

/* Stats Bar */
.stats-bar {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 30px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-icon {
    font-size: 1.8rem;
    color: var(--primary-hover);
}

.stat-info h4 {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--navy-dark);
}

.stat-info p {
    font-size: 0.8rem;
    color: #64748b;
}

/* Category Filter Tabs */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 10px 22px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--slate-body);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active, .tab-btn:hover {
    background-color: var(--navy-dark);
    color: #ffffff;
    border-color: var(--navy-dark);
}

/* Kits Grid */
.kits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.kit-card {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.kit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.kit-card.featured {
    border: 2px solid var(--primary);
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.15);
}

.kit-badge {
    position: absolute;
    top: -12px;
    right: 25px;
    background-color: var(--navy-dark);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
}

.kit-badge-popular {
    background-color: var(--primary);
    color: var(--navy-dark);
}

.kit-icon {
    font-size: 2rem;
    color: var(--primary-hover);
    margin-bottom: 15px;
}

.kit-card h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--navy-dark);
    margin-bottom: 10px;
}

.kit-card p {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 20px;
}

.kit-list {
    margin-bottom: 25px;
    flex-grow: 1;
}

.kit-list li {
    font-size: 0.88rem;
    color: var(--slate-body);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.kit-list li i {
    color: var(--green-success);
}

.kit-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.price-estimate {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--navy-dark);
}

/* Calculator Section */
.calculator-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 30px;
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 35px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.calc-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--navy-dark);
}

.range-slider {
    width: 100%;
    accent-color: var(--primary);
}

.range-value-display {
    text-align: right;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--primary-hover);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 0.95rem;
    color: var(--slate-body);
    background-color: var(--bg-light);
    outline: none;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    border-color: var(--primary);
    background-color: #ffffff;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.custom-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    cursor: pointer;
}

.calc-output {
    background-color: var(--navy-dark);
    color: #ffffff;
    padding: 30px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.calc-output h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.price-breakdown {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.price-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    color: #cbd5e1;
}

.price-divider {
    height: 1px;
    background-color: var(--border-dark);
    margin: 10px 0;
}

.price-total {
    font-size: 1.4rem;
    font-weight: 900;
    color: #ffffff;
}

.calc-note {
    font-size: 0.75rem;
    color: #94a3b8;
    margin-bottom: 20px;
}

/* Specs Table */
.specs-table-container {
    width: 100%;
    overflow-x: auto;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #ffffff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.specs-table th {
    background-color: var(--navy-dark);
    color: #ffffff;
    text-align: left;
    padding: 16px 20px;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.specs-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.specs-table tr:last-child td {
    border-bottom: none;
}

/* Compliance Cards */
.compliance-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 25px;
}

.comp-card {
    background-color: var(--navy-card);
    border: 1px solid var(--border-dark);
    padding: 25px;
    border-radius: var(--radius-md);
    text-align: center;
}

.comp-icon {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.comp-card h3 {
    font-size: 1.1rem;
    color: #ffffff;
    margin-bottom: 10px;
}

.comp-card p {
    font-size: 0.85rem;
    color: #cbd5e1;
}

/* Form Card */
.max-w-form {
    max-width: 800px;
}

.form-card {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.form-header {
    margin-bottom: 30px;
    text-align: center;
}

.form-header h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--navy-dark);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.main-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.file-upload-wrapper {
    position: relative;
}

.file-input {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.file-dummy {
    border: 2px dashed var(--border-color);
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    background-color: var(--bg-light);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #64748b;
    font-size: 0.88rem;
}

.form-response-msg {
    margin-top: 15px;
    padding: 12px;
    border-radius: var(--radius-md);
    display: none;
    font-weight: 600;
    text-align: center;
}

.form-response-msg.success {
    display: block;
    background-color: rgba(16, 185, 129, 0.15);
    color: #065f46;
    border: 1px solid #10b981;
}

/* FAQ Accordion */
.max-w-accordion {
    max-width: 800px;
}

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-toggle {
    width: 100%;
    text-align: left;
    padding: 18px 22px;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-content {
    padding: 0 22px 18px 22px;
    display: none;
    font-size: 0.92rem;
    color: var(--slate-body);
}

.faq-item.active .faq-content {
    display: block;
}

.faq-item.active .faq-toggle i {
    transform: rotate(180deg);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-box {
    background-color: #ffffff;
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    padding: 30px;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: #64748b;
}

.modal-header {
    text-align: center;
    margin-bottom: 20px;
}

.modal-icon {
    font-size: 2.5rem;
    color: var(--primary-hover);
    margin-bottom: 10px;
}

.modal-header h3 {
    font-size: 1.4rem;
    color: var(--navy-dark);
}

.modal-header p {
    font-size: 0.85rem;
    color: #64748b;
}

/* Footer */
.footer {
    background-color: #0b1120;
    color: #94a3b8;
    padding: 60px 0 20px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-desc {
    margin-top: 15px;
    font-size: 0.88rem;
    max-width: 350px;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1rem;
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 0.88rem;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding-top: 20px;
    font-size: 0.8rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-grid, .calculator-wrapper {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 75px;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }
    .nav-menu.active {
        display: flex;
    }
    .mobile-toggle {
        display: block;
    }
    .hero-text h1 {
        font-size: 2.2rem;
    }
}


/* New styling for image logo added to the bottom */
.header-logo-img {
    max-height: 55px; /* Fits nicely inside the 75px navbar */
    width: auto;
    display: block;
}

.hero-slideshow {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.slideshow-container {
  position: relative;
  width: 100%;
  height: 320px;
  background-color: #111;
}

.slide {
  display: none;
  width: 100%;
  height: 100%;
}

.slide.active {
  display: block;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-caption {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 12px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 0.9rem;
  text-align: center;
}

/* Navigation Arrows */
.slide-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  border: none;
  font-size: 18px;
  padding: 10px 14px;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.3s;
}

.slide-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}

.slide-btn.prev { left: 10px; }
.slide-btn.next { right: 10px; }

/* Dots Indicator */
.slideshow-dots {
  text-align: center;
  padding: 10px 0;
  background: #0f172a;
}

.dot {
  height: 10px;
  width: 10px;
  margin: 0 4px;
  background-color: #475569;
  border-radius: 50%;
  display: inline-block;
  cursor: pointer;
  transition: background-color 0.3s;
}

.dot.active, .dot:hover {
  background-color: #38bdf8;
}

/* Fade animation */
.fade {
  animation: fadeEffect 0.5s ease-in-out;
}

@keyframes fadeEffect {
  from { opacity: 0.4; }
  to { opacity: 1; }
}