/* --------------------------------------------------------------------------
   15. Mobile Optimization Warning
   -------------------------------------------------------------------------- */
.mobile-optimization-warning {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface-1);
    border: 1px solid var(--amber);
    border-radius: var(--radius);
    padding: 16px 20px;
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.2);
    z-index: 10000;
    max-width: 90%;
    width: 340px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.mobile-optimization-warning.warning-amber {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--amber);
    color: var(--text-primary);
}

.mobile-optimization-warning .warning-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.mobile-optimization-warning .warning-icon {
    width: 24px;
    height: 24px;
    background: var(--amber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.mobile-optimization-warning .warning-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--amber);
    letter-spacing: -0.01em;
}

.mobile-optimization-warning .warning-message {
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.mobile-optimization-warning .warning-close {
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xs);
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-optimization-warning .warning-close:hover {
    background: var(--surface-2);
    color: var(--text-primary);
    border-color: var(--accent);
}

/* Hide warning on desktop */
@media (min-width: 1025px) {
    .mobile-optimization-warning {
        display: none !important;
    }
}

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

:root {
    /* Dark Theme Variables (Default) */
    --deep-space: #1E1E24;
    --surface-1: #26262D;
    --surface-2: #2E2E36;
    --surface-3: #36363F;
    
    /* Accents */
    --accent: #3B82F6;
    --accent-light: #60A5FA;
    --accent-glow: rgba(59, 130, 246, 0.35);
    --accent-soft: rgba(59, 130, 246, 0.08);
    --accent-border: rgba(59, 130, 246, 0.25);
    
    /* Typography Colors */
    --text-primary: #EEEEF0;
    --text-secondary: #8A8B9E;
    --text-muted: #55566A;
    
    /* UI Elements */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --green: #22C55E;
    --amber: #F59E0B;
    --rose: #F43F5E;
    
    /* Border Radii */
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --radius-pill: 100px;
}

/* Light Theme Variables */
.light-mode {
    --deep-space: #F8FAFC;
    --surface-1: #FFFFFF;
    --surface-2: #F1F5F9;
    --surface-3: #E2E8F0;
    
    --accent: #2563EB;
    --accent-light: #3B82F6;
    --accent-glow: rgba(37, 99, 235, 0.15);
    --accent-soft: rgba(37, 99, 235, 0.08);
    --accent-border: rgba(37, 99, 235, 0.2);
    
    --text-primary: #0F172A;
    --text-secondary: #334155;
    --text-muted: #475569;
    
    --border-subtle: #CBD5E1;
    
    --green: #15803D;
    --amber: #B45309;
    --rose: #BE123C;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
    background-color: var(--deep-space);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Texture Overlay */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
    opacity: 0.5;
}

.light-mode body::after {
    opacity: 0.25;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.mono {
    font-family: 'JetBrains Mono', monospace;
}

/* --------------------------------------------------------------------------
   02. Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: transparent;
    transition: background-color 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.navbar.scrolled {
    background: var(--surface-1);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    padding: 14px 0;
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.light-mode .navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

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

.nav-brand {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-icon {
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 8px;
    display: grid;
    place-items: center;
    font-size: 14px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 0 24px var(--accent-glow);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s;
    letter-spacing: -0.01em;
}

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

.nav-mobile-actions {
    display: none;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Theme Toggle Button */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-muted);
}

.theme-toggle:hover {
    background: var(--surface-2);
    border-color: var(--accent-border);
    color: var(--text-primary);
}

.theme-toggle .theme-icon {
    transition: all 0.3s ease;
}

/* Mobile Theme Toggle Switch */
.mobile-theme-toggle {
    display: flex;
    align-items: center;
    background: var(--surface-2);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 0; /* Remove padding to eliminate gap */
    margin: 0 auto 12px auto; /* Center horizontally and add bottom margin */
    width: 100px; /* Increased width for bigger size */
}

.mobile-theme-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50%;
    height: 40px; /* Increased height for bigger size */
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-muted);
}

.mobile-theme-btn:hover {
    background: var(--surface-3);
    color: var(--text-primary);
}

.mobile-theme-btn.active {
    background: var(--accent);
    color: white;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.mobile-theme-btn svg {
    transition: all 0.3s ease;
}

/* Mobile Toggle Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

.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); }

/* --------------------------------------------------------------------------
   03. Buttons & Actions
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--radius-pill);
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    letter-spacing: -0.01em;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--text-primary);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 24px var(--accent-glow), 0 1px 0 rgba(255,255,255,0.1) inset;
}

.btn-primary:hover {
    background: #2563EB;
    box-shadow: 0 0 36px var(--accent-glow), 0 1px 0 rgba(255,255,255,0.15) inset;
    transform: translateY(-1px);
}

.light-mode .btn-primary {
    box-shadow: 0 4px 14px var(--accent-glow), 0 1px 0 rgba(255, 255, 255, 0.4) inset;
}

.light-mode .btn-primary:hover {
    background: #1D4ED8;
    box-shadow: 0 6px 20px var(--accent-glow), 0 1px 0 rgba(255, 255, 255, 0.4) inset;
}

.btn-secondary {
    background: var(--surface-2);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    background: var(--surface-3);
    border-color: var(--accent-border);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 14.5px;
}

.btn-primary .btn-arrow {
    transition: transform 0.3s;
}

.btn-primary:hover .btn-arrow {
    transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   04. Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    padding: 180px 24px 120px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 700px;
    background: radial-gradient(circle at center, var(--accent-soft) 0%, transparent 55%);
    pointer-events: none;
}

.light-mode .hero::before {
    background: radial-gradient(circle at center, rgba(37, 99, 235, 0.05) 0%, transparent 55%);
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(var(--border-subtle) 1px, transparent 1px), linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 75%);
    pointer-events: none;
    opacity: 0.3;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 16px 5px 7px;
    background: var(--accent-soft);
    border: 1px solid rgba(255, 107, 107, 0.2);
    border-radius: var(--radius-pill);
    font-size: 12.5px;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: 28px;
}

.light-mode .hero-badge {
    border-color: var(--accent-border);
}

.badge-dot {
    width: 7px;
    height: 7px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero h1 {
    font-size: clamp(40px, 5vw, 50px);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 60%, #1E40AF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.light-mode .gradient-text {
    background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 60%, #1E3A8A 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 16.5px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 460px;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 48px;
}

.trusted-row {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.trusted-label {
    font-size: 11.5px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trusted-logos {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: nowrap;
}

.trusted-logo {
    opacity: 0.25;
    transition: opacity 0.3s;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.trusted-logo:hover {
    opacity: 0.5;
}

.light-mode .trusted-logo {
    opacity: 0.5;
}

.light-mode .trusted-logo:hover {
    opacity: 0.8;
}

/* --------------------------------------------------------------------------
   05. Product Showcase Images & Badges
   -------------------------------------------------------------------------- */
.hero-product-showcase {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    min-height: 500px;
}

.product-image-wrapper {
    position: relative;
    width: 320px;
    height: 480px;
    border-radius: 120px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2), 0 0 0 1px var(--border-subtle) inset;
    z-index: 2;
    background: transparent;
}

.product-image-wrapper img.main-bottle {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-image-wrapper:hover img.main-bottle {
    transform: scale(1.05);
}

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

.glass-badge {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 14px;
    z-index: 3;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    position: absolute;
}

.light-mode .glass-badge {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.06);
}

.glass-badge.badge-left {
    bottom: 25%;
    left: -10%;
    animation: floatDroplet 5s ease-in-out infinite reverse;
}

.glass-badge.badge-right-top {
    top: 15%;
    right: -8%;
    animation: floatDroplet 6s ease-in-out infinite;
}

.glass-badge.badge-right-bottom {
    bottom: 20%;
    right: -5%;
    animation: floatDroplet 7s ease-in-out infinite reverse;
}

.glass-badge .badge-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-glow);
    color: var(--accent-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.glass-badge .badge-text {
    display: flex;
    flex-direction: column;
}

.glass-badge .badge-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    font-weight: 600;
}

.glass-badge .badge-value {
    font-size: 16px;
    font-weight: 800;
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   06. General Sections
   -------------------------------------------------------------------------- */
.section {
    padding: 120px 0;
    position: relative;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 14px;
    font-family: 'JetBrains Mono', monospace;
}

.section-label::before {
    content: '';
    width: 18px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.section-title {
    font-size: clamp(30px, 4vw, 46px);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 14px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-desc {
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   07. Tabbed Features Widget
   -------------------------------------------------------------------------- */
.feature-tabs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin-bottom: 56px;
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    padding: 4px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.feature-tab {
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

.feature-tab:hover {
    color: var(--text-secondary);
}

.feature-tab.active {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.feature-panels {
    position: relative;
}

.feature-panel {
    display: none;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: center;
    animation: panelIn 0.45s ease forwards;
}

.feature-panel.active {
    display: grid;
}

@keyframes panelIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.feature-text {
    max-width: 440px;
}

.feature-text .feat-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-soft);
    border: 1px solid rgba(255, 107, 107, 0.10);
    border-radius: 12px;
    display: grid;
    place-items: center;
    margin-bottom: 24px;
    color: var(--accent);
}

.light-mode .feat-icon {
    border-color: var(--accent-border);
}

.feature-text h3 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 14px;
    line-height: 1.15;
}

.feature-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 28px;
}

.feature-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-bullets li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
    color: var(--text-secondary);
}

.feature-bullets li svg {
    color: var(--accent);
    flex-shrink: 0;
}

.feature-visual {
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    position: relative;
}

.light-mode .feature-visual {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.05);
}

.fv-body {
    padding: 24px;
}

/* --- Feature Panels Interactions (Stage Inspector / Calculator / Zone) --- */
.stage-inspector { display: flex; flex-direction: column; gap: 16px; }
.stage-list { display: flex; flex-direction: column; gap: 6px; }
.stage-btn {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    background: var(--surface-2); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm); color: var(--text-secondary);
    font-size: 13.5px; font-weight: 600; cursor: pointer; text-align: left; transition: all 0.2s ease;
}
.stage-btn:hover { background: var(--surface-3); color: var(--text-primary); }
.stage-btn.active { background: var(--accent-soft); border-color: var(--accent-border); color: var(--accent-light); }
.stage-num { font-family: 'JetBrains Mono', monospace; font-size: 11px; opacity: 0.6; }
.stage-detail-box { background: rgba(0,0,0,0.2); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); padding: 16px; }
.light-mode .stage-detail-box { background: rgba(0,0,0,0.02); border-color: var(--border-subtle); }
.stage-status { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--green); display: flex; align-items: center; gap: 6px; margin-bottom: 12px; font-family: 'JetBrains Mono', monospace; }
.status-dot { width: 6px; height: 6px; background: var(--green); border-radius: 50%; box-shadow: 0 0 8px var(--green); }
.stage-detail-box h4 { font-size: 17px; margin-bottom: 8px; color: var(--text-primary); font-weight: 600; }
.stage-detail-box p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }
.stage-removes { font-size: 13px; display: flex; gap: 8px; font-family: 'JetBrains Mono', monospace;}
.stage-removes .re-label { color: var(--text-primary); font-weight: 500; }
.stage-removes .re-value { color: var(--accent-light); font-weight: 600; }

.calc-widget { display: flex; flex-direction: column; }
.calc-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 20px; font-size: 14px; color: var(--text-primary); font-weight: 600; }
.calc-liters { font-size: 22px; font-weight: 800; color: var(--accent); letter-spacing: -0.02em; }
.calc-slider { -webkit-appearance: none; width: 100%; height: 6px; background: var(--surface-3); border-radius: 6px; outline: none; margin-bottom: 28px; }
.calc-slider::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: 0 0 12px var(--accent-glow); }
.calc-slider::-moz-range-thumb { appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: 0 0 12px var(--accent-glow); border: none; }
.calc-bars { display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }
.calc-bar-row { display: flex; align-items: center; gap: 12px; }
.cbr-label { width: 110px; font-size: 13px; font-weight: 600; color: var(--text-primary); }
.cbr-label span { display: block; font-size: 10px; color: var(--text-secondary); font-family: 'JetBrains Mono', monospace; margin-top: 2px;}
.cbr-track { flex: 1; height: 12px; background: rgba(255,255,255,0.04); border-radius: 6px; overflow: hidden; }
.light-mode .cbr-track { background: rgba(0,0,0,0.06); }
.cbr-fill { height: 100%; border-radius: 6px; transition: width 0.3s ease; }
.cbr-fill.red { background: var(--rose); }
.light-mode .cbr-fill.red { background: var(--rose); }
.cbr-fill.green { background: var(--green); }
.light-mode .cbr-fill.green { background: var(--green); }
.cbr-val { width: 50px; text-align: right; font-size: 12px; font-family: 'JetBrains Mono', monospace; color: var(--text-primary); font-weight: 600; }
.calc-result { background: var(--accent-soft); border: 1px solid var(--accent-border); border-radius: var(--radius-sm); padding: 18px; text-align: center; }
.cr-text { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-primary); margin-bottom: 6px; font-weight: 600; }
.cr-amount { font-size: 30px; font-weight: 800; color: var(--green); }
.cr-period { font-size: 14px; font-weight: 600; color: var(--text-secondary); }

.zone-checker { display: flex; flex-direction: column; gap: 24px; }
.zone-toggles { display: flex; background: var(--surface-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); padding: 4px; }
.zone-btn { flex: 1; padding: 12px; background: transparent; border: none; border-radius: 6px; color: var(--text-secondary); font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.zone-btn:hover { color: var(--text-primary); }
.zone-btn.active { background: var(--surface-1); color: var(--text-primary); box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.light-mode .zone-btn.active { box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.zone-price-display { text-align: center; padding: 18px; background: var(--deep-space); border: 1px dashed var(--border-subtle); border-radius: var(--radius-sm); }
.zpd-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-primary); display: block; margin-bottom: 6px; font-weight: 600; }
.zpd-amount { font-size: 34px; font-weight: 800; color: var(--accent); }
.zone-areas { display: flex; flex-direction: column; gap: 12px; }
.za-label { font-size: 13px; color: var(--text-primary); font-weight: 600; }
.za-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.za-tag { background: var(--surface-2); border: 1px solid var(--border-subtle); padding: 6px 12px; border-radius: 100px; font-size: 13px; color: var(--text-primary); font-family: 'JetBrains Mono', monospace; transition: all 0.2s; font-weight: 500; }
.za-tag:hover { border-color: var(--accent); color: var(--accent-light); }

/* --------------------------------------------------------------------------
   08. Stats Strip
   -------------------------------------------------------------------------- */
.stats-strip {
    padding: 80px 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.stats-grid {
    display: flex;
    justify-content: space-between;
}

.stat-item {
    text-align: center;
    flex: 1;
    padding: 0 20px;
}

.stat-item + .stat-item {
    border-left: 1px solid var(--border-subtle);
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   09. Order & Pricing Section
   -------------------------------------------------------------------------- */
.pricing-section {
    background: linear-gradient(180deg, var(--deep-space) 0%, var(--accent-soft) 50%, var(--deep-space) 100%);
}

.order-calculator {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    box-shadow: 0 16px 32px rgba(0,0,0,0.15);
    overflow: hidden;
}

.order-tabs {
    display: flex;
    background: var(--surface-2);
    border-bottom: 1px solid var(--border-subtle);
}

.order-tab {
    flex: 1;
    padding: 14px 10px;
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
}

.order-tab:hover { color: var(--text-primary); }
.order-tab.active { color: var(--accent); background: var(--surface-1); border-bottom-color: var(--accent); }

.order-panels { padding: 24px; }
.order-panel { display: none; animation: panelIn 0.3s ease; }
.order-panel.active { display: block; }

.panel-header { margin-bottom: 20px; }
.header-content { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.header-text { flex: 1; }
.panel-header h3 { font-size: 20px; margin-bottom: 6px; font-weight: 800; }
.panel-header p { font-size: 14px; color: var(--text-secondary); }

.reset-btn { display: flex; align-items: center; gap: 6px; background: var(--surface-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); padding: 8px 12px; font-size: 12px; font-weight: 600; color: var(--text-muted); cursor: pointer; transition: all 0.2s; font-family: inherit; }
.reset-btn:hover { background: var(--surface-1); border-color: var(--accent); color: var(--text-primary); }
.light-mode .reset-btn:hover { background: var(--surface-2); }
.reset-btn svg { flex-shrink: 0; }

.calc-row { margin-bottom: 20px; }
.calc-row > label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 12px; color: var(--text-primary); }
.slider-group { display: flex; align-items: center; gap: 20px; }
.slider-group input[type="range"] { flex: 1; }
.number-input { display: flex; align-items: center; background: var(--surface-2); border: 1px solid var(--border-subtle); border-radius: 8px; padding: 4px 12px; }
.number-input input { background: transparent; border: none; color: var(--text-primary); font-size: 18px; font-weight: 700; width: 60px; text-align: center; outline: none; font-family: 'JetBrains Mono', monospace; }
.number-input span { color: var(--text-muted); font-weight: 600; }

.checkbox-label { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; color: var(--text-secondary); }
.checkbox-label input { display: none; }
.custom-checkbox { width: 20px; height: 20px; border: 2px solid var(--border-subtle); border-radius: 4px; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
.light-mode .custom-checkbox { border-color: var(--text-muted); }
.checkbox-label input:checked + .custom-checkbox { background: var(--accent); border-color: var(--accent); }
.checkbox-label input:checked + .custom-checkbox::after { content: ''; width: 5px; height: 10px; border: solid white; border-width: 0 2px 2px 0; transform: rotate(45deg); margin-bottom: 2px; }

.qty-control { display: flex; align-items: center; background: var(--surface-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); width: fit-content; }
.qty-control.large { transform: scale(1.1); transform-origin: left; }
.qty-btn { background: transparent; border: none; color: var(--text-muted); font-size: 18px; width: 36px; height: 36px; cursor: pointer; transition: 0.2s; }
.qty-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.light-mode .qty-btn:hover { background: rgba(0, 0, 0, 0.05); }
.qty-control input { width: 50px; text-align: center; background: transparent; border: none; color: var(--text-primary); font-size: 15px; font-weight: 700; font-family: 'JetBrains Mono', monospace; pointer-events: none; }

.lids-qty-wrapper { margin-top: 14px; padding-left: 30px; }
.note-text { font-size: 12px; color: var(--text-muted); margin-top: 10px; display: flex; align-items: center; gap: 6px; }
.note-text.error-note { color: var(--amber); }

.delivery-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.radio-card { cursor: pointer; }
.radio-card input { display: none; }
.rc-content { border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); padding: 14px; text-align: center; font-size: 13.5px; font-weight: 600; color: var(--text-secondary); transition: all 0.3s; background: var(--surface-2); }
.rc-content span { display: block; font-size: 12px; font-weight: 700; color: var(--accent-light); margin-top: 4px; }
.radio-card input:checked + .rc-content { border-color: var(--accent); background: var(--accent-soft); color: var(--text-primary); }

.bulk-items { display: flex; flex-direction: column; gap: 10px; }
.bulk-item { display: flex; align-items: center; justify-content: space-between; background: var(--surface-2); padding: 12px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border-subtle); }
.bi-info h4 { font-size: 15px; font-weight: 700; color: var(--text-primary); }
.bi-info span { font-size: 13px; color: var(--text-muted); font-family: 'JetBrains Mono', monospace; }
.mt-4 { margin-top: 24px; }

.panel-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border-subtle); }
.tab-total { font-size: 14px; color: var(--text-secondary); font-weight: 600; }
.tab-total span { font-size: 22px; font-weight: 800; color: var(--text-primary); margin: 0 4px; font-family: 'JetBrains Mono', monospace; }

.global-summary { background: rgba(34, 197, 94, 0.04); border-top: 1px solid var(--border-subtle); padding: 24px; }
.summary-details h3 { font-size: 18px; margin-bottom: 16px; font-weight: 700; }
.summary-line { display: flex; justify-content: space-between; font-size: 14px; color: var(--text-secondary); margin-bottom: 10px; }
.summary-line .val { font-weight: 600; color: var(--text-primary); font-family: 'JetBrains Mono', monospace; }
.summary-total { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--border-subtle); font-size: 16px; font-weight: 700; }
.total-val { font-size: 28px; font-weight: 800; color: var(--green); font-family: 'JetBrains Mono', monospace; letter-spacing: -0.02em; }
.summary-warning { display: flex; gap: 12px; background: rgba(245, 158, 11, 0.1); border: 1px solid rgba(245, 158, 11, 0.3); color: var(--amber); padding: 14px; border-radius: var(--radius-sm); margin-top: 20px; font-size: 13px; line-height: 1.5; }
.summary-warning svg { flex-shrink: 0; }
.summary-actions { margin-top: 24px; text-align: center; }
.summary-actions .btn { width: 100%; max-width: 320px; }
.custom-request { font-size: 13px; color: var(--text-muted); margin-top: 12px; }
.custom-request a { color: var(--accent); font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }

/* --------------------------------------------------------------------------
   10. FAQ Section
   -------------------------------------------------------------------------- */
.faq-section {
    background: linear-gradient(180deg, var(--deep-space) 0%, var(--surface-1) 100%);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.light-mode .faq-item:hover {
    border-color: var(--accent-border);
}

.faq-btn {
    width: 100%;
    text-align: left;
    padding: 22px 24px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 15.5px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    gap: 20px;
    transition: background 0.3s ease;
}

.faq-btn:hover { background: rgba(255, 255, 255, 0.02); }
.light-mode .faq-btn:hover { background: rgba(0, 0, 0, 0.02); }

.faq-icon {
    flex-shrink: 0;
    color: var(--accent);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active { background: var(--surface-2); border-color: var(--accent-border); }
.faq-item.active .faq-icon { transform: rotate(45deg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-inner {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    font-size: 14.5px;
    line-height: 1.6;
}

/* --------------------------------------------------------------------------
   11. Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
    border-top: 1px solid var(--border-subtle);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    align-items: stretch;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--surface-1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all 0.3s ease;
}

.contact-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.contact-card .cc-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 12px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    border: 1px solid var(--accent-border);
}

.cc-text h4 { font-size: 16px; margin-bottom: 6px; color: var(--text-primary); font-weight: 700; }
.cc-text p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; margin-bottom: 4px; }
.cc-text a { font-size: 14px; color: var(--accent); font-weight: 600; transition: color 0.3s ease; font-family: 'JetBrains Mono', monospace; }
.cc-text a:hover { color: var(--accent-light); }

.contact-map {
    background: var(--surface-2);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    min-height: 400px;
}

.contact-map iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    filter: invert(90%) hue-rotate(180deg) contrast(85%); /* Dark Mode Map */
    transition: filter 0.4s ease;
}

.light-mode .contact-map iframe {
    filter: invert(0%) hue-rotate(0deg); /* Light Mode Map */
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.footer {
    border-top: 1px solid var(--border-subtle);
    padding: 0;
}

.footer-row-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    padding: 28px 0;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-subtle);
}

.footer-row-links a { font-size: 13px; color: var(--text-muted); transition: color 0.3s; letter-spacing: -0.01em; }
.footer-row-links a:hover { color: var(--text-primary); }
.footer-link-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--border-subtle); flex-shrink: 0; }

.footer-row-bottom { display: flex; align-items: center; justify-content: space-between; padding: 24px 0 28px; }
.footer-copy { font-size: 12.5px; color: var(--text-muted); }
.footer-copy a { color: var(--accent); transition: color 0.3s; }
.footer-copy a:hover { color: var(--accent-light); }

.footer-right { display: flex; align-items: center; gap: 24px; }
.footer-legal { display: flex; align-items: center; gap: 20px; }
.footer-legal a { font-size: 12.5px; color: var(--text-muted); transition: color 0.3s; }
.footer-legal a:hover { color: var(--text-primary); }

.footer-right .separator { width: 1px; height: 16px; background: var(--border-subtle); }
.footer-socials { display: flex; gap: 4px; }
.footer-socials a { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 8px; color: var(--text-muted); transition: all 0.3s; }
.footer-socials a:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.04); }
.light-mode .footer-socials a:hover { background: rgba(0, 0, 0, 0.05); }

/* --------------------------------------------------------------------------
   13. Global Scroll Animations
   -------------------------------------------------------------------------- */
.fade-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   14. Responsive Layout Adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 48px; }
    .feature-panel, .feature-panel.active { grid-template-columns: 1fr; gap: 40px; }
    .feature-text { max-width: none; }

    /* Hide hero product showcase on tablet */
    .hero-product-showcase {
        display: none;
    }

    .footer-row-bottom { flex-direction: column; gap: 20px; text-align: center; }
    .footer-right { justify-content: center; }
}

@media (max-width: 768px) {
    .container { padding: 0 16px; }

    /* Hide hero product showcase on mobile */
    .hero-product-showcase {
        display: none;
    }

    /* Mobile Nav Overrides */
    .nav-links {
        position: fixed; top: 0; right: -100%; width: 280px; height: 100dvh;
        background: var(--surface-1); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
        flex-direction: column; align-items: flex-start; padding: 80px 28px 80px;
        gap: 0; border-left: 1px solid var(--border-subtle); transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto; z-index: 999;
    }
    .nav-links.open { right: 0; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--border-subtle); }
    .nav-toggle { display: flex; }
    .nav-actions { display: none; }
    
    .nav-mobile-actions { display: flex; flex-direction: column; gap: 10px; padding-top: 24px; margin-top: 8px; }
    .nav-mobile-actions .btn { width: 100%; text-align: center; border-radius: var(--radius-pill); color: var(--text-primary); }
    .nav-mobile-actions .btn-primary { color: #fff; }
    .nav-mobile-actions a { border-bottom: none !important; padding: 10px 22px !important; font-size: 14px !important; }

    .hero { padding: 140px 24px 80px; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .trusted-logos { flex-wrap: wrap; justify-content: center; gap: 16px; }
    .trusted-row { text-align: center; align-items: center; }

    .feature-tabs { overflow-x: auto; justify-content: flex-start; width: 100%; border-radius: var(--radius-sm); -webkit-overflow-scrolling: touch; scrollbar-width: none; }
    .feature-tabs::-webkit-scrollbar { display: none; }
    .feature-tab { padding: 10px 18px; font-size: 12.5px; }

    .stats-grid { flex-wrap: wrap; gap: 32px; }
    .stat-item { flex: 1 1 40%; min-width: 140px; }
    .stat-item + .stat-item { border-left: none; padding-left: 0; }
    .stat-number { font-size: 36px; }

    .footer-row-links { gap: 20px; }
    .section { padding: 80px 0; }

    /* Forms / Calculator Mobile layout */
    .delivery-options { grid-template-columns: 1fr; }
    .panel-footer { flex-direction: column; gap: 16px; align-items: stretch; text-align: center; }
    .order-tabs { flex-direction: column; }
    .contact-grid { grid-template-columns: 1fr; }
    .contact-map { min-height: 350px; }
}

@media (max-width: 480px) {
    .container { padding: 0 12px; }
    .trusted-logos { gap: 12px; justify-content: center; }
}

@media (max-width: 389px) {
    .container { padding: 0 16px; }
    .hero h1 { font-size: 30px; margin-bottom: 16px; }
    .hero-desc { font-size: 14.5px; }
    .section-title { font-size: 26px; }
    
    .product-image-wrapper { width: 220px; height: 330px; }
    .hero-product-showcase { min-height: 360px; }

    .glass-badge { padding: 6px 10px; gap: 6px; }
    .glass-badge .badge-icon { width: 24px; height: 24px; }
    .glass-badge .badge-icon svg { width: 12px; height: 12px; }
    .glass-badge .badge-title { font-size: 7px; }
    .glass-badge .badge-value { font-size: 10px; }
    .glass-badge.badge-left { left: 0; bottom: 10%; }
    .glass-badge.badge-right-top { right: 0; top: 8%; }
    .glass-badge.badge-right-bottom { right: 0; bottom: 12%; }

    .stats-grid { flex-direction: column; gap: 32px; }
    .stat-item { text-align: center; width: 100%; flex: 1 1 100%; }

    .feature-tab { padding: 8px 12px; font-size: 11.5px; }
    .nav-links { width: 100%; padding-left: 20px; padding-right: 20px; }
    .footer-socials { gap: 2px; }
    .footer-socials a { width: 30px; height: 30px; }
}

/* Reduces animations for accessibility preferences */
@media (prefers-reduced-motion: reduce) {
    .fade-up { opacity: 1; transform: none; transition: none; }
    .badge-dot { animation: none; }
    .glass-badge { animation: none; }
    @keyframes panelIn { from { opacity: 1; transform: none; } }
}