/* ==========================================================================
   SYSTEM DESIGN: Aura Labs Premium Design Tokens
   ========================================================================== */

:root {
    /* Color Palette */
    --bg-dark: #08080C;
    --card-bg: #12121A;
    --card-bg-hover: #161622;
    --border-color: rgba(255, 255, 255, 0.08);
    
    --accent-purple: #7000FF;
    --accent-cyan: #00F2FE;
    --accent-glow: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    
    --text-white: #FFFFFF;
    --text-silver: #A0A0AB;
    --text-dark: #52525B;
    
    --success-green: #00FF88;
    --danger-red: #FF3B30;
    
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Animation & Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease-out;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-dark);
    color: var(--text-white);
    font-family: var(--font-body);
}

body {
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: #1F1F2E;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

/* Typography Utilities */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

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

/* ==========================================================================
   BUTTONS & INTERACTIVE ELEMENTS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-glow);
    color: var(--text-white);
    padding: 1rem 2rem;
    font-size: 1.05rem;
    box-shadow: 0 4px 20px rgba(112, 0, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 242, 254, 0.4), 0 0 10px rgba(112, 0, 255, 0.5);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.btn-primary:hover::after {
    left: 100%;
}

.btn-secondary-compact {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
    backdrop-filter: blur(10px);
}

.btn-secondary-compact:hover {
    background: var(--text-white);
    color: var(--bg-dark);
    border-color: var(--text-white);
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
    padding: 1.1rem;
    font-size: 1.1rem;
}

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-silver);
    font-size: 0.95rem;
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
}

.btn-link:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.btn-link i {
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.btn-link:hover i {
    transform: translateY(3px);
}

/* Pulsing Animation */
@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(112, 0, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(112, 0, 255, 0);
    }
}

.btn-pulse {
    animation: pulseGlow 2.5s infinite;
}

/* ==========================================================================
   HEADER SECTION
   ========================================================================== */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(8, 8, 12, 0.65);
    backdrop-filter: blur(20px) saturate(160%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    background: rgba(8, 8, 12, 0.9);
    border-bottom-color: rgba(112, 0, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.header-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: 0.05em;
    position: relative;
}

.brand-logo-text {
    background: linear-gradient(90deg, #FFFFFF, var(--text-silver));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-logo-dot {
    width: 5px;
    height: 5px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    margin: 0 6px;
    box-shadow: 0 0 8px var(--accent-cyan);
}

.brand-logo-sub {
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--text-silver);
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-silver);
    position: relative;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-glow);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--text-white);
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
}

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

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
    position: relative;
    padding: 10rem 2rem 6rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 50% 0%, rgba(18, 18, 28, 0.8), var(--bg-dark) 70%);
}

.hero-bg-glows {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.glow-purple {
    position: absolute;
    top: 15%;
    left: 20%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(112, 0, 255, 0.15) 0%, transparent 70%);
    filter: blur(60px);
}

.glow-cyan {
    position: absolute;
    bottom: 20%;
    right: 15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.1) 0%, transparent 70%);
    filter: blur(80px);
}

.hero-container {
    max-width: 1300px;
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 650px;
}

.hero-tagline {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    display: inline-block;
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #FFFFFF 30%, #A0A0AB 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 15px 30px rgba(0,0,0,0.3);
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-silver);
    margin-bottom: 3rem;
    line-height: 1.7;
}

.hero-cta-group {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   CSS HEADPHONE GRAPHIC & BADGES
   ========================================================================== */

.hero-visual-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    background: rgba(18, 18, 26, 0.65);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition-smooth);
}

.floating-badge:hover {
    background: rgba(22, 22, 35, 0.85);
    border-color: var(--accent-cyan);
    transform: scale(1.05) translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 242, 254, 0.25);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-cyan);
    animation: beaconPulse 2s infinite;
}

.floating-badge:hover .badge-dot {
    background: var(--accent-purple);
    box-shadow: 0 0 8px var(--accent-purple);
}

.badge-text {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-white);
}

/* Badge positions */
.badge-top-left { top: 12%; left: 0%; }
.badge-top-right { top: 22%; right: -2%; }
.badge-bottom-left { bottom: 25%; left: -5%; }
.badge-bottom-right { bottom: 15%; right: 5%; }

/* Badge Tooltips */
.badge-tooltip {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 240px;
    background: #0E0E14;
    border: 1px solid rgba(112, 0, 255, 0.3);
    padding: 1rem;
    border-radius: 8px;
    color: var(--text-silver);
    font-size: 0.8rem;
    line-height: 1.4;
    pointer-events: none;
    opacity: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    transition: var(--transition-smooth);
    z-index: 20;
}

.badge-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: #0E0E14 transparent transparent transparent;
}

.floating-badge:hover .badge-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

@keyframes beaconPulse {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(1); opacity: 0.8; }
}

/* CSS headphone layout representation */
.css-headphone-visual {
    position: relative;
    width: 340px;
    height: 380px;
    margin: 0 auto;
}

.headband-outer {
    position: absolute;
    top: 10px;
    left: 20px;
    width: 300px;
    height: 280px;
    border-top: 16px solid #1A1A26;
    border-left: 14px solid #161622;
    border-right: 14px solid #161622;
    border-radius: 150px 150px 0 0;
    box-shadow: inset 0 2px 10px rgba(255,255,255,0.05);
}

.headband-inner {
    position: absolute;
    top: 24px;
    left: 32px;
    width: 276px;
    height: 250px;
    border-top: 6px solid #2B2B3E;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-radius: 138px 138px 0 0;
}

.headband-metal-left, .headband-metal-right {
    position: absolute;
    top: 160px;
    width: 6px;
    height: 90px;
    background: linear-gradient(to bottom, #1D1D2C, #5C5C7A, #1D1D2C);
    box-shadow: 0 0 10px rgba(255,255,255,0.1);
}

.headband-metal-left { left: 23px; }
.headband-metal-right { right: 23px; }

.earcup-holder-left, .earcup-holder-right {
    position: absolute;
    top: 210px;
    width: 36px;
    height: 90px;
    border: 5px solid #252535;
    border-radius: 20px;
}

.earcup-holder-left {
    left: 8px;
    border-right: none;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.earcup-holder-right {
    right: 8px;
    border-left: none;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.earcup-left, .earcup-right {
    position: absolute;
    top: 220px;
    width: 76px;
    height: 125px;
    display: flex;
    align-items: center;
}

.earcup-left { left: 16px; }
.earcup-right { right: 16px; flex-direction: row-reverse; }

.earcup-body {
    width: 48px;
    height: 110px;
    background: linear-gradient(135deg, #101018, #181826);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 24px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.earcup-plate {
    width: 32px;
    height: 80px;
    background: radial-gradient(circle, #252535, #0D0D14);
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.03);
}

.earcup-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 24px;
    box-shadow: 0 0 12px rgba(112, 0, 255, 0.2);
    pointer-events: none;
}

.earpad-left, .earpad-right {
    width: 28px;
    height: 120px;
    background: #0C0C12;
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 12px;
    box-shadow: 5px 0 15px rgba(0,0,0,0.6);
}

.earpad-right {
    box-shadow: -5px 0 15px rgba(0,0,0,0.6);
}

/* Spatial soundwave visualization pulse in the center */
.spatial-sound-wave {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    z-index: -1;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.wave-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid transparent;
    opacity: 0;
}

.wave-1 {
    width: 90px;
    height: 90px;
    border-color: rgba(112, 0, 255, 0.4);
    animation: spatialPulse 3s infinite linear;
}

.wave-2 {
    width: 140px;
    height: 140px;
    border-color: rgba(0, 242, 254, 0.3);
    animation: spatialPulse 3s infinite linear 1s;
}

.wave-3 {
    width: 200px;
    height: 200px;
    border-color: rgba(112, 0, 255, 0.25);
    animation: spatialPulse 3s infinite linear 2s;
}

@keyframes spatialPulse {
    0% { transform: scale(0.6); opacity: 0; }
    30% { opacity: 0.6; }
    80% { opacity: 0.2; }
    100% { transform: scale(1.4); opacity: 0; }
}

/* ==========================================================================
   COMMON SECTION LAYOUT
   ========================================================================== */

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 2rem;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 5rem;
}

.section-tag {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    display: inline-block;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #FFFFFF, #B0B0C0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-silver);
    line-height: 1.6;
}

/* ==========================================================================
   FEATURES BREAKDOWN (INGENIERÍA)
   ========================================================================== */

.features-section {
    background: var(--bg-dark);
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 3rem 2.5rem;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.feature-card:hover {
    background: var(--card-bg-hover);
    transform: translateY(-8px);
    border-color: rgba(112, 0, 255, 0.3);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    background: rgba(112, 0, 255, 0.08);
    border: 1px solid rgba(112, 0, 255, 0.25);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    transition: var(--transition-smooth);
}

.feature-icon-wrapper i {
    font-size: 1.8rem;
    color: var(--accent-cyan);
    text-shadow: 0 0 10px var(--accent-cyan);
}

.feature-card:hover .feature-icon-wrapper {
    background: var(--accent-glow);
    border-color: transparent;
    transform: scale(1.1) rotate(5deg);
}

.feature-card:hover .feature-icon-wrapper i {
    color: var(--text-white);
}

.feature-card-title {
    font-size: 1.35rem;
    margin-bottom: 1.25rem;
    color: var(--text-white);
}

.feature-card-description {
    font-size: 0.95rem;
    color: var(--text-silver);
    line-height: 1.7;
}

.feature-card-glow {
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, transparent 70%);
    filter: blur(20px);
    transition: var(--transition-smooth);
}

.feature-card:hover .feature-card-glow {
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(112, 0, 255, 0.15) 0%, transparent 70%);
}

/* ==========================================================================
   TECHNICAL SPECS (ACCORDION)
   ========================================================================== */

.specs-section {
    background: radial-gradient(circle at 50% 50%, rgba(18, 18, 28, 0.5) 0%, var(--bg-dark) 80%);
}

.specs-accordion-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.accordion-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.accordion-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.accordion-header {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    text-align: left;
    color: var(--text-white);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.accordion-header-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-fast);
}

.accordion-header-title i {
    color: var(--accent-cyan);
    font-size: 1.35rem;
}

.accordion-icon {
    font-size: 1.25rem;
    color: var(--text-silver);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.accordion-item.active {
    border-color: rgba(112, 0, 255, 0.35);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.accordion-item.active .accordion-header-title {
    color: var(--accent-cyan);
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
    color: var(--accent-cyan);
}

.accordion-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.accordion-content {
    padding: 0 2rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    margin-top: -1px;
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding-top: 1.5rem;
}

.spec-detail {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.spec-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
}

.spec-val {
    font-size: 0.95rem;
    color: var(--text-silver);
    line-height: 1.5;
}

/* ==========================================================================
   SOCIAL PROOF (RESEÑAS)
   ========================================================================== */

.reviews-section {
    background: var(--bg-dark);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.review-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.review-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.15);
}

.review-stars {
    display: flex;
    gap: 0.3rem;
    margin-bottom: 1.5rem;
}

.review-stars i {
    color: #FFB300;
    font-size: 1.05rem;
}

.review-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-silver);
    margin-bottom: 2rem;
    font-style: italic;
}

.review-author {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.author-name {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-white);
}

.author-role {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dark);
    margin-top: 0.2rem;
}

.verified-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--success-green);
    background: rgba(0, 255, 136, 0.06);
    border: 1px solid rgba(0, 255, 136, 0.15);
    padding: 0.25rem 0.5rem;
    border-radius: 50px;
}

/* ==========================================================================
   DIRECT CHECKOUT & ORDER FORM
   ========================================================================== */

.checkout-section {
    background: radial-gradient(circle at 50% 100%, rgba(112, 0, 255, 0.1) 0%, var(--bg-dark) 75%);
    position: relative;
    border-top: 1px solid rgba(255,255,255,0.03);
}

.checkout-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: start;
}

.checkout-info-header {
    margin-bottom: 3rem;
}

.checkout-tag {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent-purple);
    text-shadow: 0 0 15px rgba(112, 0, 255, 0.4);
    margin-bottom: 1rem;
    display: inline-block;
}

.checkout-title {
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    margin-bottom: 1rem;
}

.checkout-subtitle {
    font-size: 1rem;
    color: var(--text-silver);
}

.box-contents-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 4rem;
}

.box-contents-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.95rem;
    color: var(--text-silver);
}

.box-contents-list li i {
    color: var(--accent-cyan);
    font-size: 1.25rem;
}

.box-contents-list li strong {
    color: var(--text-white);
}

.trust-indicators-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.trust-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.trust-card:hover {
    border-color: rgba(112, 0, 255, 0.2);
    background: rgba(112, 0, 255, 0.03);
}

.trust-card i {
    font-size: 1.75rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.trust-card h4 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.trust-card p {
    font-size: 0.75rem;
    color: var(--text-dark);
    line-height: 1.4;
}

/* Right Column: Checkout Form Box */
.checkout-form-container {
    background: var(--card-bg);
    border: 1px solid rgba(112, 0, 255, 0.2);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(112, 0, 255, 0.1);
    position: relative;
}

.checkout-form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-glow);
    border-radius: 20px 20px 0 0;
}

.form-header {
    margin-bottom: 2.5rem;
}

.form-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.form-header p {
    font-size: 0.85rem;
    color: var(--text-silver);
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-silver);
    margin-bottom: 0.6rem;
    letter-spacing: 0.02em;
}

.input-wrapper, .select-wrapper {
    position: relative;
    width: 100%;
}

.input-wrapper i, .select-wrapper > i:first-child {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dark);
    font-size: 1.15rem;
    transition: var(--transition-fast);
}

.input-wrapper input, .select-wrapper select {
    width: 100%;
    background: #0E0E14;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 1rem 1.25rem 1rem 3.25rem;
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    outline: none;
}

.input-wrapper input:focus, .select-wrapper select:focus {
    border-color: var(--accent-cyan);
    background: #12121A;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
}

.input-wrapper input:focus + i, .select-wrapper select:focus + i {
    color: var(--accent-cyan);
}

.select-wrapper select {
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.select-arrow {
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-silver);
    pointer-events: none;
}

/* Error message state */
.form-group.invalid input {
    border-color: var(--danger-red);
    box-shadow: 0 0 8px rgba(255, 59, 48, 0.15);
}

.error-msg {
    display: block;
    font-size: 0.75rem;
    color: var(--danger-red);
    margin-top: 0.4rem;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-fast);
}

.form-group.invalid .error-msg {
    opacity: 1;
    max-height: 20px;
}

/* Pricing summary details in form */
.pricing-summary {
    background: #0E0E14;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2.25rem 0;
}

.price-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-silver);
    margin-bottom: 0.75rem;
}

.discount-row {
    color: var(--success-green);
}

.price-old {
    text-decoration: line-through;
    color: var(--text-dark);
}

.ship-badge {
    background: rgba(0, 255, 136, 0.1);
    color: var(--success-green);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.price-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.06);
    margin: 1rem 0;
}

.final-price-row {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0;
}

.price-new {
    color: var(--accent-cyan);
    font-size: 1.4rem;
    font-family: var(--font-heading);
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.form-disclaimer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-dark);
    margin-top: 1.5rem;
    text-align: center;
}

.form-disclaimer i {
    font-size: 0.85rem;
}

/* Loading state for form submit */
.btn-loading {
    pointer-events: none;
    opacity: 0.8;
}
.btn-loading span {
    visibility: hidden;
}
.btn-loading::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--text-white);
    border-radius: 50%;
    animation: spin 0.8s infinite linear;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   FOOTER SECTION
   ========================================================================== */

.main-footer {
    background: #040407;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding: 5rem 2rem 3rem;
}

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

.footer-brand {
    margin-bottom: 3rem;
}

.brand-slogan {
    font-size: 0.85rem;
    color: var(--text-silver);
    margin-top: 0.5rem;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4rem;
    margin-bottom: 4rem;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    padding-bottom: 4rem;
}

.footer-links-column h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-white);
    margin-bottom: 1.5rem;
}

.footer-links-column a {
    display: block;
    font-size: 0.9rem;
    color: var(--text-silver);
    margin-bottom: 0.8rem;
}

.footer-links-column a:hover {
    color: var(--accent-cyan);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-dark);
}

.footer-socials {
    display: flex;
    gap: 1.5rem;
}

.footer-socials a {
    font-size: 1.25rem;
    color: var(--text-silver);
}

.footer-socials a:hover {
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

/* ==========================================================================
   SUCCESS MODAL OVERLAY
   ========================================================================== */

.success-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(4, 4, 6, 0.85);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

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

.success-modal {
    background: var(--card-bg);
    border: 1px solid rgba(112, 0, 255, 0.25);
    max-width: 550px;
    width: 100%;
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    box-shadow: 0 30px 60px rgba(0,0,0,0.8), 0 0 40px rgba(112, 0, 255, 0.15);
    transform: translateY(20px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.success-modal-overlay.active .success-modal {
    transform: translateY(0);
}

.success-icon-container {
    width: 80px;
    height: 80px;
    background: rgba(0, 255, 136, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
}

.success-icon-container i {
    font-size: 3.5rem;
    color: var(--success-green);
}

.success-modal h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.modal-intro {
    font-size: 0.95rem;
    color: var(--text-silver);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.modal-order-summary {
    background: #0E0E14;
    border: 1px solid rgba(255,255,255,0.03);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 2rem;
    text-align: left;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.summary-item:last-child {
    margin-bottom: 0;
}

.summary-lbl {
    color: var(--text-dark);
}

.summary-val {
    font-weight: 600;
    color: var(--text-silver);
}

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

.modal-outro {
    font-size: 0.85rem;
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 2.5rem;
}

/* ==========================================================================
   MOBILE RESPONSIVENESS & MEDIA QUERIES
   ========================================================================== */

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 5rem;
        text-align: center;
    }
    
    .hero-content {
        margin: 0 auto;
    }
    
    .hero-cta-group {
        justify-content: center;
    }
    
    .hero-visual-wrapper {
        max-width: 450px;
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .checkout-layout {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .trust-indicators-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }
    
    .nav-menu {
        display: none; /* Mobile navigation simplified */
    }
    
    .hero-section {
        padding-top: 8rem;
    }
    
    .floating-badge {
        display: none; /* Hide hover badges on mobile viewports for clean layout */
    }
    
    .css-headphone-visual {
        transform: scale(0.85);
    }
    
    .specs-accordion-container {
        padding: 0;
    }
    
    .spec-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .checkout-form-container {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .css-headphone-visual {
        transform: scale(0.7);
        height: 280px;
        width: 285px;
    }
    
    .success-modal {
        padding: 2rem 1.5rem;
    }
}