/* ==========================================================================
   ARUMÉ PERFUME - PREMIUM LUXURY TECH SYSTEM DESIGN
   ========================================================================== */

/* 1. INITIAL SETUP & CSS VARIABLE TOKENS */
:root {
    /* Color Palette */
    --bg-dark-obsidian: #07080A;
    --bg-dark-charcoal: #0E1116;
    --bg-dark-card: #151A22;
    --color-gold-champagne: #C5A880;
    --color-gold-warm: #E5C595;
    --color-white: #FFFFFF;
    --color-gray-light: #E0E4EC;
    --color-gray-muted: #8E99A8;
    --color-gray-dark: #2A333E;
    
    /* Scent Gradient Colors */
    --color-scent-woody: #8D5B4C;
    --color-scent-floral: #D4A3B3;
    --color-scent-citrus: #E0A96D;
    --color-scent-amber: #FFB300;
    
    /* Scent Light Ratios (RGBA for liquid gradients) */
    --rgb-scent-woody: 141, 91, 76;
    --rgb-scent-floral: 212, 163, 179;
    --rgb-scent-citrus: 224, 169, 109;
    --rgb-scent-amber: 255, 179, 0;

    /* Semantic Colors */
    --color-success: #2ECC71;
    --color-error: #E74C3C;
    --color-online: #2ECC71;
    --color-offline: #F1C40F;

    /* Fonts */
    --font-heading: 'Syne', sans-serif;
    --font-body: 'Outfit', sans-serif;

    /* Shadows & Borders */
    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.5);
    --shadow-gold-glow: 0 0 20px rgba(197, 168, 128, 0.25);
    --shadow-led-glow: 0 0 15px rgba(255, 255, 255, 0.4);
    --border-glass: 1px solid rgba(255, 255, 255, 0.05);
    --border-gold-glass: 1px solid rgba(197, 168, 128, 0.15);
    --border-radius-lg: 16px;
    --border-radius-md: 10px;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.2s ease-in-out;
}

/* 2. BASE RESET & GLOBAL STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark-obsidian);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

body {
    position: relative;
    overflow-x: hidden;
    min-height: 100vh;
}

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

ul {
    list-style: none;
}

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

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark-obsidian);
}
::-webkit-scrollbar-thumb {
    background: var(--color-gray-dark);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-gold-champagne);
}

/* 3. LAYOUT UTILITIES */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

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

.section {
    padding: 100px 0;
    opacity: 0;
    transform: translateY(20px);
    display: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.active-section {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-muted);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

.section-divider {
    height: 1px;
    background: radial-gradient(circle, rgba(197, 168, 128, 0.25) 0%, rgba(255, 255, 255, 0) 70%);
    margin: 60px 0;
}

/* Glassmorphism card template */
.glass-card {
    background: rgba(21, 26, 34, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: var(--border-glass);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    border: var(--border-gold-glass);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6), var(--shadow-gold-glow);
}

/* 4. BACKGROUND AURORA ANIMATION */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
    background: var(--bg-dark-obsidian);
}

.glow-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    mix-blend-mode: screen;
}

.sphere-1 {
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-gold-champagne) 0%, transparent 80%);
    animation: float-slow 15s infinite alternate;
}

.sphere-2 {
    bottom: -15%;
    left: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--color-scent-floral) 0%, transparent 80%);
    animation: float-slow 20s infinite alternate-reverse;
}

.sphere-3 {
    top: 40%;
    left: 40%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--color-scent-citrus) 0%, transparent 80%);
    opacity: 0.08;
}

@keyframes float-slow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 30px) scale(1.1); }
}

/* 5. TOAST NOTIFICATION STYLING */
.notification-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 24px;
    background: rgba(14, 17, 22, 0.9);
    border: var(--border-gold-glass);
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(12px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.5), var(--shadow-gold-glow);
    transform: translateX(120%);
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.notification-toast.show {
    transform: translateX(0);
}

.toast-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-success);
}

.toast-content .toast-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.toast-content .toast-message {
    font-size: 0.85rem;
    color: var(--color-gray-muted);
}

/* 6. NAVIGATION HEADER */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    background: rgba(7, 8, 10, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: var(--border-glass);
    transition: var(--transition-smooth);
}

.header.scrolled {
    padding: 12px 0;
    background: rgba(7, 8, 10, 0.9);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: var(--color-white);
}

.logo-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-gold-champagne);
    border-radius: 50%;
    box-shadow: var(--shadow-gold-glow);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: var(--color-gray-muted);
    padding: 8px 0;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gold-champagne);
    box-shadow: var(--shadow-gold-glow);
    transition: var(--transition-fast);
}

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

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

.bottle-status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    border: var(--border-glass);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    transition: var(--transition-fast);
}

.bottle-status-badge:hover {
    background: rgba(197, 168, 128, 0.1);
    border: var(--border-gold-glass);
}

.status-indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    position: relative;
}

.status-indicator-dot.online {
    background-color: var(--color-online);
    box-shadow: 0 0 10px var(--color-online);
}

.status-indicator-dot.offline {
    background-color: var(--color-offline);
    box-shadow: 0 0 10px var(--color-offline);
}

.status-indicator-dot.online::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--color-online);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(2.5); opacity: 0; }
}

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 110;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* 7. PREMIUM BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gold-champagne) 0%, var(--color-gold-warm) 100%);
    color: var(--bg-dark-obsidian);
    border: none;
    box-shadow: 0 10px 20px rgba(197, 168, 128, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(197, 168, 128, 0.35), var(--shadow-gold-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.btn-block {
    display: flex;
    width: 100%;
}

.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* 8. HERO & MARKETING SECTION */
.hero-section {
    padding-top: 160px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.badge-new {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 50px;
    background: rgba(197, 168, 128, 0.08);
    border: var(--border-gold-glass);
    margin-bottom: 24px;
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--color-gold-warm);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.gradient-text {
    background: linear-gradient(90deg, var(--color-gold-champagne) 0%, var(--color-gold-warm) 50%, var(--color-white) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-gray-muted);
    font-weight: 300;
    margin-bottom: 40px;
    max-width: 550px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 60px;
}

.hero-quick-specs {
    display: flex;
    align-items: center;
    gap: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
}

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

.spec-value {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-gold-champagne);
}

.spec-label {
    font-size: 0.8rem;
    color: var(--color-gray-muted);
}

.hero-visual-content {
    position: relative;
    display: flex;
    justify-content: center;
}

.main-bottle-showcase {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.bottle-glow-back {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    height: 400px;
    background: radial-gradient(circle, rgba(197, 168, 128, 0.15) 0%, transparent 70%);
    z-index: -1;
    filter: blur(20px);
}

.image-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    animation: float 6s ease-in-out infinite;
}

.bottle-image {
    transition: var(--transition-smooth);
}

.main-bottle-showcase:hover .bottle-image {
    transform: scale(1.05);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

.floating-info-card {
    position: absolute;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: rgba(14, 17, 22, 0.8);
    border: var(--border-gold-glass);
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    width: 250px;
}

.card-top-right {
    top: 15%;
    right: -25%;
    animation: float-delayed 6s ease-in-out infinite;
}

.card-bottom-left {
    bottom: 15%;
    left: -25%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float-delayed {
    0% { transform: translateY(-15px); }
    50% { transform: translateY(0px); }
    100% { transform: translateY(-15px); }
}

.card-icon {
    font-size: 1.5rem;
}

.card-info h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2px;
    color: var(--color-white);
}

.card-info p {
    font-size: 0.75rem;
    color: var(--color-gray-muted);
    line-height: 1.3;
}

/* 9. SCENT PERSONALIZATION ENGINE */
.lab-tabs-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.lab-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.02);
    border: var(--border-glass);
    border-radius: 50px;
    color: var(--color-gray-muted);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lab-tab:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
}

.lab-tab.active {
    background: rgba(197, 168, 128, 0.1);
    border: var(--border-gold-glass);
    color: var(--color-gold-warm);
    box-shadow: var(--shadow-gold-glow);
}

.lab-workspace {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: stretch;
}

.lab-control-panel {
    padding: 40px;
    min-height: 520px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.lab-view {
    display: none;
}

.lab-view.active-view {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-subtitle {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.panel-desc {
    font-size: 0.9rem;
    color: var(--color-gray-muted);
    margin-bottom: 30px;
}

/* Quiz Specific Styling */
.quiz-progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
    margin-bottom: 30px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 33%;
    background: linear-gradient(90deg, var(--color-gold-champagne), var(--color-gold-warm));
    transition: width 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.quiz-step {
    display: none;
}

.quiz-step.active-step {
    display: block;
    animation: fadeIn 0.4s ease;
}

.quiz-question {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.quiz-helper {
    font-size: 0.85rem;
    color: var(--color-gray-muted);
    margin-bottom: 24px;
}

.quiz-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.quiz-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 24px 16px;
    background: rgba(255, 255, 255, 0.02);
    border: var(--border-glass);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.quiz-option:hover {
    background: rgba(197, 168, 128, 0.05);
    border-color: rgba(197, 168, 128, 0.3);
    transform: translateY(-2px);
}

.option-emoji {
    font-size: 2rem;
}

.option-label {
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    color: var(--color-gray-light);
}

/* Quiz Result Panel */
.quiz-result {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.success-checkmark {
    margin-bottom: 20px;
}

.check-icon {
    width: 60px;
    height: 60px;
    position: relative;
    border-radius: 50%;
    box-sizing: content-box;
    border: 4px solid var(--color-success);
}

.check-icon::after {
    top: 4px;
    left: 4px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    position: absolute;
    z-index: 1;
}

.icon-line {
    height: 5px;
    background-color: var(--color-success);
    display: block;
    border-radius: 2px;
    position: absolute;
    z-index: 10;
}

.icon-line.line-tip {
    width: 15px;
    left: 11px;
    top: 29px;
    transform: rotate(45deg);
}

.icon-line.line-long {
    width: 27px;
    right: 9px;
    top: 24px;
    transform: rotate(-45deg);
}

.result-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.result-description {
    font-size: 0.9rem;
    color: var(--color-gray-muted);
    margin-bottom: 24px;
    max-width: 450px;
}

.recomended-formula-badge {
    padding: 10px 24px;
    border-radius: 50px;
    background: rgba(46, 204, 113, 0.1);
    border: 1px solid rgba(46, 204, 113, 0.3);
    color: var(--color-success);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 30px;
}

.result-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Manual Sliders */
.scent-slider-group {
    margin-bottom: 24px;
}

.slider-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.scent-name {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
}

.color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.woody-dot { background-color: var(--color-scent-woody); box-shadow: 0 0 8px var(--color-scent-woody); }
.floral-dot { background-color: var(--color-scent-floral); box-shadow: 0 0 8px var(--color-scent-floral); }
.citrus-dot { background-color: var(--color-scent-citrus); box-shadow: 0 0 8px var(--color-scent-citrus); }
.amber-dot { background-color: var(--color-scent-amber); box-shadow: 0 0 8px var(--color-scent-amber); }

.slider-val {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-gold-champagne);
}

.scent-range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    outline: none;
    margin-bottom: 6px;
}

/* Specific slider tracks and thumbs colors */
[data-scent="woody"] .scent-range-slider { background: linear-gradient(to right, var(--color-scent-woody), var(--color-gray-dark)); }
[data-scent="floral"] .scent-range-slider { background: linear-gradient(to right, var(--color-scent-floral), var(--color-gray-dark)); }
[data-scent="citrus"] .scent-range-slider { background: linear-gradient(to right, var(--color-scent-citrus), var(--color-gray-dark)); }
[data-scent="amber"] .scent-range-slider { background: linear-gradient(to right, var(--color-scent-amber), var(--color-gray-dark)); }

.scent-range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-gold-champagne);
    cursor: pointer;
    transition: var(--transition-fast);
}

.scent-range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(197, 168, 128, 0.5);
}

.scent-desc {
    display: block;
    font-size: 0.75rem;
    color: var(--color-gray-muted);
    line-height: 1.3;
}

.slider-status-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 30px;
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    background: rgba(255, 255, 255, 0.02);
    border: var(--border-glass);
    font-size: 0.85rem;
    font-weight: 500;
}

.slider-status-bar.valid {
    border-color: rgba(46, 204, 113, 0.2);
    background: rgba(46, 204, 113, 0.05);
    color: var(--color-success);
}

.slider-status-bar.invalid {
    border-color: rgba(231, 76, 60, 0.2);
    background: rgba(231, 76, 60, 0.05);
    color: var(--color-error);
}

/* 10. DIGITAL BOTTLE SIMULATOR */
.lab-visualizer-panel {
    display: flex;
    justify-content: center;
    align-items: center;
}

.virtual-device-container {
    display: flex;
    align-items: center;
    gap: 30px;
    width: 100%;
}

.bottle-visual-wrapper {
    flex: 1.2;
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.visualizer-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 15px;
    margin-bottom: 30px;
}

.visualizer-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.visualizer-dot.red { background-color: var(--color-error); }
.visualizer-dot.yellow { background-color: var(--color-offline); }
.visualizer-dot.green { background-color: var(--color-success); }

.visualizer-title {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-gray-muted);
    margin-left: 6px;
}

/* Rendered Smart Bottle */
.interactive-bottle {
    width: 160px;
    height: 310px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    margin-bottom: 25px;
}

/* Mist spray animation */
.nozzle-spray-container {
    position: absolute;
    top: -60px;
    width: 100px;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
}

.mist-particles {
    display: none;
    position: relative;
    width: 100%;
    height: 100%;
}

.mist-particles.spraying {
    display: flex;
    justify-content: center;
}

.mist {
    position: absolute;
    bottom: 5px;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    filter: blur(1px);
}

.mist-1 { animation: spray-left 1.2s infinite ease-out; }
.mist-2 { animation: spray-center 1.2s infinite ease-out; }
.mist-3 { animation: spray-right 1.2s infinite ease-out; }

@keyframes spray-center {
    0% { transform: translateY(0) scale(1); opacity: 1; filter: blur(1px); }
    100% { transform: translateY(-40px) scale(8); opacity: 0; filter: blur(5px); }
}
@keyframes spray-left {
    0% { transform: translate(0, 0) scale(1); opacity: 1; }
    100% { transform: translate(-20px, -35px) scale(6); opacity: 0; filter: blur(4px); }
}
@keyframes spray-right {
    0% { transform: translate(0, 0) scale(1); opacity: 1; }
    100% { transform: translate(20px, -35px) scale(6); opacity: 0; filter: blur(4px); }
}

.nozzle {
    width: 12px;
    height: 12px;
    background: var(--color-gold-champagne);
    border-radius: 2px;
}

.bottle-cap {
    width: 40px;
    height: 35px;
    background: linear-gradient(90deg, #1A1A1A, #333333, #1A1A1A);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 4px 4px 0 0;
}

.bottle-collar {
    width: 50px;
    height: 12px;
    background: linear-gradient(90deg, #B5976F, var(--color-gold-champagne), #B5976F);
    box-shadow: var(--shadow-gold-glow);
}

.bottle-body {
    width: 140px;
    height: 230px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
}

.liquid-reservoir {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80%; /* Space for hardware housing at top */
    display: flex;
    flex-direction: column-reverse; /* Bottom layer first */
    transition: var(--transition-smooth);
}

.liquid-layer {
    width: 100%;
    transition: height 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    opacity: 0.65;
}

.layer-woody {
    background: linear-gradient(180deg, rgba(var(--rgb-scent-woody), 0.8) 0%, rgba(var(--rgb-scent-woody), 0.5) 100%);
    box-shadow: inset 0 0 20px rgba(var(--rgb-scent-woody), 0.3);
}

.layer-floral {
    background: linear-gradient(180deg, rgba(var(--rgb-scent-floral), 0.8) 0%, rgba(var(--rgb-scent-floral), 0.5) 100%);
    box-shadow: inset 0 0 20px rgba(var(--rgb-scent-floral), 0.3);
}

.layer-citrus {
    background: linear-gradient(180deg, rgba(var(--rgb-scent-citrus), 0.8) 0%, rgba(var(--rgb-scent-citrus), 0.5) 100%);
    box-shadow: inset 0 0 20px rgba(var(--rgb-scent-citrus), 0.3);
}

.layer-amber {
    background: linear-gradient(180deg, rgba(var(--rgb-scent-amber), 0.8) 0%, rgba(var(--rgb-scent-amber), 0.5) 100%);
    box-shadow: inset 0 0 20px rgba(var(--rgb-scent-amber), 0.3);
}

/* Glass reflections */
.bottle-body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 8px;
    width: 15px;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
    z-index: 2;
    pointer-events: none;
}

/* Embedded ESP32 S3 glowing vertical LED */
.led-strip {
    position: absolute;
    bottom: 20px;
    width: 4px;
    height: 150px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    z-index: 3;
    left: 50%;
    transform: translateX(-50%);
    transition: var(--transition-smooth);
}

.led-strip.glow-active {
    background: linear-gradient(to top, var(--color-scent-woody), var(--color-scent-floral), var(--color-scent-citrus), var(--color-scent-amber));
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.8), 0 0 30px rgba(197, 168, 128, 0.6);
    animation: led-pulse 2s infinite alternate;
}

@keyframes led-pulse {
    0% { opacity: 0.6; }
    100% { opacity: 1; }
}

.brand-emboss {
    position: absolute;
    bottom: 20px;
    color: rgba(255, 255, 255, 0.15);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.85rem;
    letter-spacing: 4px;
    z-index: 3;
    pointer-events: none;
}

.bottle-live-meta {
    width: 100%;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 15px;
}

.meta-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-bottom: 6px;
    color: var(--color-gray-muted);
}

.meta-value {
    font-weight: 600;
    color: var(--color-white);
}

/* Smartphone Simulator */
.smartphone-simulator {
    flex: 0.8;
    height: 380px;
    padding: 16px;
    border-radius: 30px !important;
    position: relative;
    border: 3px solid rgba(255, 255, 255, 0.15) !important;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
}

.screen-notch {
    width: 80px;
    height: 16px;
    background: var(--bg-dark-obsidian);
    border-radius: 0 0 10px 10px;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
}

.app-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #0D1015;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.02);
}

.app-header {
    background: rgba(0,0,0,0.2);
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--color-gray-muted);
    border-bottom: 1px solid rgba(255,255,255,0.03);
    padding-top: 16px;
}

.app-logo {
    letter-spacing: 1.5px;
    color: var(--color-gold-champagne);
}

.app-body {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.app-intro {
    font-size: 0.7rem;
    color: var(--color-gray-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
    font-weight: 700;
}

.app-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin: 15px 0;
}

.app-stat-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--border-radius-md);
    padding: 10px 4px;
    text-align: center;
}

.app-stat-val {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-white);
}

.app-stat-lbl {
    font-size: 0.55rem;
    text-transform: uppercase;
    color: var(--color-gray-muted);
}

.app-action-btn {
    width: 100%;
    padding: 10px;
    border-radius: var(--border-radius-md);
    background: transparent;
    border: 1px solid var(--color-gold-champagne);
    color: var(--color-gold-warm);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.app-action-btn:hover {
    background: rgba(197, 168, 128, 0.1);
    box-shadow: var(--shadow-gold-glow);
}

.app-spray-btn {
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius-md);
    background: linear-gradient(135deg, var(--color-scent-citrus), var(--color-scent-amber));
    border: none;
    color: var(--bg-dark-obsidian);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    box-shadow: 0 4px 10px rgba(224, 169, 109, 0.2);
}

.app-spray-btn.disabled {
    background: var(--color-gray-dark);
    color: var(--color-gray-muted);
    cursor: not-allowed;
    box-shadow: none;
}

.app-spray-btn:not(.disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(224, 169, 109, 0.4);
}

/* 11. TECHNOLOGY & SDGS SECTION */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.tech-card {
    padding: 40px;
}

.tech-icon-container {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-md);
    background: rgba(197, 168, 128, 0.08);
    border: var(--border-gold-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gold-warm);
    margin-bottom: 24px;
}

.tech-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.tech-card p {
    font-size: 0.9rem;
    color: var(--color-gray-muted);
    font-weight: 300;
}

/* SDGs Section Showcase */
.sdg-showcase {
    margin-top: 40px;
}

.sdg-main-heading {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 40px;
}

.sdg-flex-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.sdg-card {
    padding: 40px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.sdg-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    opacity: 0.15;
}

.sdg-9 .sdg-badge { color: #F26A36; }
.sdg-12 .sdg-badge { color: #BF8D2C; }

.sdg-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-white);
}

.sdg-card p {
    font-size: 0.95rem;
    color: var(--color-gray-muted);
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 30px;
}

.sdg-tech-badge-list {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.tech-pill {
    padding: 6px 14px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.03);
    border: var(--border-glass);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gold-warm);
}

.sdg-image-wrapper {
    width: 100%;
    height: 160px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: var(--border-glass);
}

.sdg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.sdg-card:hover .sdg-img {
    transform: scale(1.05);
}

/* 12. COMPANY PROFILE & STRUCTURE (ORG CHART) */
.about-brand-brief {
    display: flex;
    padding: 40px;
    gap: 30px;
    margin-bottom: 80px;
    position: relative;
    overflow: hidden;
}

.brief-accent-bar {
    width: 4px;
    background: linear-gradient(to bottom, var(--color-gold-champagne), transparent);
    border-radius: 2px;
}

.brief-content h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.brief-content p {
    font-size: 1rem;
    color: var(--color-gray-muted);
    font-weight: 300;
}

.org-chart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.org-heading {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 50px;
}

.org-row {
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 30px;
}

/* Connective line representing chart branches */
.org-connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(197, 168, 128, 0.3), rgba(197, 168, 128, 0.05));
    margin: 10px 0;
}

.member-card {
    padding: 30px;
    width: 260px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ceo-card {
    width: 320px;
    border: var(--border-gold-glass);
    box-shadow: var(--shadow-gold-glow);
}

.member-badge {
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.ceo-card .member-badge { background: rgba(197, 168, 128, 0.1); color: var(--color-gold-warm); border: 1px solid rgba(197, 168, 128, 0.2); }
.rd-badge { background: rgba(141, 91, 76, 0.1); color: #D4A3B3; border: 1px solid rgba(141, 91, 76, 0.2); }
.bd-badge { background: rgba(224, 169, 109, 0.1); color: var(--color-gold-warm); border: 1px solid rgba(224, 169, 109, 0.2); }
.fin-badge { background: rgba(46, 204, 113, 0.1); color: #2ECC71; border: 1px solid rgba(46, 204, 113, 0.2); }
.cr-badge { background: rgba(212, 163, 179, 0.1); color: #D4A3B3; border: 1px solid rgba(212, 163, 179, 0.2); }

.member-photo-placeholder {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255,255,255,0.03);
    border: var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-gold-champagne);
    margin-bottom: 16px;
    transition: var(--transition-fast);
}

.member-card:hover .member-photo-placeholder {
    transform: scale(1.1);
    border-color: var(--color-gold-champagne);
    box-shadow: var(--shadow-gold-glow);
}

.member-name {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.divider-name {
    margin-top: -4px;
    font-size: 0.9rem;
    opacity: 0.9;
}

.member-role {
    font-size: 0.75rem;
    color: var(--color-gray-muted);
    font-weight: 300;
    line-height: 1.4;
    margin-top: 10px;
}

.level-2 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    width: 100%;
}

.level-2 .member-card {
    width: 100%;
}

/* 13. CONTACT & SUBSCRIPTION SECTION */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
}

.contact-info-panel {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-pricing-card {
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 30px;
    margin-bottom: 30px;
}

.pricing-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--color-gold-warm);
    text-transform: uppercase;
    display: block;
    margin-bottom: 10px;
}

.price-wrapper {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
}

.price-wrapper .currency {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-gray-muted);
}

.price-wrapper .price-val {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -1px;
}

.price-includes {
    font-size: 0.85rem;
    color: var(--color-gray-muted);
    line-height: 1.4;
}

.features-checklist {
    margin-bottom: 40px;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.check-bullet {
    color: var(--color-success);
    font-weight: 700;
}

.check-text {
    color: var(--color-gray-light);
}

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

.channel-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.channel-icon {
    font-size: 1.3rem;
}

.channel-details h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.channel-details p {
    font-size: 0.8rem;
    color: var(--color-gray-muted);
}

/* Premium Form Styles */
.contact-form-panel {
    padding: 40px;
}

.form-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 30px;
}

.arume-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.form-group {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.floating-label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--color-gray-muted);
    text-transform: uppercase;
}

.form-control {
    background: rgba(255, 255, 255, 0.02);
    border: var(--border-glass);
    border-radius: var(--border-radius-md);
    padding: 14px 18px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-white);
    transition: var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: rgba(197, 168, 128, 0.5);
    background: rgba(255,255,255,0.04);
    box-shadow: 0 0 10px rgba(197, 168, 128, 0.15);
}

/* Custom styled selector and options */
.select-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 40px;
}

.select-control option {
    background-color: var(--bg-dark-charcoal);
    color: var(--color-white);
}

.text-area-control {
    resize: none;
}

.error-msg {
    display: none;
    font-size: 0.75rem;
    color: var(--color-error);
    margin-top: 2px;
}

.form-group.has-error .form-control {
    border-color: var(--color-error);
}

.form-group.has-error .error-msg {
    display: block;
}

/* 14. FOOTER */
.footer {
    background: #040506;
    border-top: var(--border-glass);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: 2px;
    color: var(--color-white);
}

.brand-tagline {
    font-size: 0.9rem;
    color: var(--color-gray-muted);
    font-weight: 300;
    max-width: 350px;
}

.copyright {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.15);
    margin-top: auto;
}

.footer-links-col h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
    color: var(--color-gold-champagne);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--color-gray-muted);
}

.footer-links a:hover {
    color: var(--color-white);
    transform: translateX(4px);
}

/* 15. RESPONSIVE MEDIA QUERIES */

/* Laptop Resolution (max-width: 1024px) */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-text-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-quick-specs {
        justify-content: center;
    }
    
    .floating-info-card {
        display: none; /* Hide floating info cards on smaller screens to reduce clutter */
    }

    .lab-workspace {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .level-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* Tablet Resolution (max-width: 768px) */
@media (max-width: 768px) {
    .header {
        padding: 15px 0;
    }
    
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-dark-charcoal);
        border-left: var(--border-glass);
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        z-index: 105;
        transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    
    .nav.show-mobile {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .nav-actions {
        display: none; /* Hide bottle badge in mobile to make space */
    }

    .hero-title {
        font-size: 2.8rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .virtual-device-container {
        flex-direction: column;
        gap: 40px;
    }
    
    .bottle-visual-wrapper {
        width: 100%;
    }
    
    .smartphone-simulator {
        width: 100%;
        max-width: 320px;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .sdg-flex-row {
        grid-template-columns: 1fr;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Smartphone Portrait Resolution (max-width: 480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .hero-quick-specs {
        flex-direction: column;
        gap: 20px;
        width: 100%;
    }
    
    .quiz-options {
        grid-template-columns: 1fr;
    }
    
    .lab-control-panel {
        padding: 24px;
    }
    
    .level-2 {
        grid-template-columns: 1fr;
    }
    
    .contact-form-panel {
        padding: 24px;
    }
    
    .contact-info-panel {
        padding: 24px;
    }
}