/* ==========================================================================
   CSS VARIABLES & DESIGN TOKENS
   ========================================================================== */
:root {
    /* Colors */
    --primary: #F97316;
    /* Laranja obra */
    --primary-dark: #EA580C;
    --secondary: #073B3A;
    /* Petróleo escuro */
    --secondary-dark: #042A29;
    --accent: #FFC400;
    /* Amarelo segurança */
    --dark: #1F2933;
    /* Grafite */
    --dark-muted: #3E4C59;
    --light: #F5F7FA;
    /* Cinza claro */
    --white: #FFFFFF;
    --danger: #EF4444;
    --success: #10B981;
    --logo-contrast-bg: linear-gradient(135deg, #BFE8DC 0%, #7FB7B1 100%);
    --logo-contrast-border: rgba(255, 196, 0, 0.28);

    /* Gradients */
    --bg-gradient: linear-gradient(135deg, #1F2933 0%, #073B3A 100%);
    --overlay-grad: linear-gradient(to right, rgba(31, 41, 51, 0.9) 0%, rgba(31, 41, 51, 0.4) 100%);

    /* Fonts */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Layout */
    --section-py: 5rem;
    --container-px: 1.5rem;
    --max-w: 1200px;
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;

    /* Shadows & Effects */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(10px);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.2;
    color: var(--dark);
}

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

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

ul {
    list-style: none;
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--container-px);
}

.py-section {
    padding-top: var(--section-py);
    padding-bottom: var(--section-py);
}

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

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

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

.text-light {
    color: rgba(255, 255, 255, 0.8) !important;
}

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

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

.text-muted {
    color: var(--dark-muted) !important;
}

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

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

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

.mb-8 {
    margin-bottom: 2rem;
}

.mt-4 {
    margin-top: 1rem;
}

.w-full {
    width: 100%;
}

.max-w-3xl {
    max-width: 48rem;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.justify-center {
    justify-content: center;
}

/* Section Typography */
.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--dark-muted);
    margin-bottom: 3rem;
    max-width: 800px;
}

/* Glassmorphism */
.glass-panel {
    background: var(--white);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
    padding: 2rem;
}

.glass-panel-dark {
    background: rgba(31, 41, 51, 0.4);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
    padding: 2rem;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.125rem;
    line-height: 1.1;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
    white-space: nowrap;
    max-width: 100%;
}

.btn i {
    font-size: 1.25em;
    line-height: 1;
    flex-shrink: 0;
}

.btn img {
    flex-shrink: 0;
}

.btn[style*="fit-content"],
.btn-fit {
    display: flex;
    width: fit-content !important;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    background-color: var(--success);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.btn-primary:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.6);
}

.btn-secondary {
    background-color: var(--accent);
    color: var(--dark);
    box-shadow: 0 4px 15px rgba(255, 196, 0, 0.4);
}

.btn-secondary:hover {
    background-color: #E6B000;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 196, 0, 0.6);
}

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

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

/* Mercado Livre Button */
.btn-ml {
    background-color: #3483fa;
    color: var(--white);
    box-shadow: 0 4px 15px rgba(52, 131, 250, 0.4);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.125rem;
    line-height: 1.1;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
    white-space: nowrap;
    max-width: 100%;
}

.btn-ml:hover {
    background-color: #2968c8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 91, 128, 0.6);
}

.btn-ml-logo {
    height: 1.5rem;
    width: auto;
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}

.pulse-btn {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }

    70% {
        transform: scale(1.02);
        box-shadow: 0 0 0 15px rgba(16, 185, 129, 0);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* ==========================================================================
   SITE HEADER
   ========================================================================== */
.site-header {
    background: var(--bg-gradient);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    z-index: 20;
}

.site-header-inner {
    min-height: 86px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-brand,
.footer-brand {
    display: inline-flex;
    align-items: center;
    line-height: 0;
    background: var(--logo-contrast-bg);
    border: 1px solid var(--logo-contrast-border);
    box-shadow: 0 14px 30px rgba(4, 42, 41, 0.28);
    overflow: hidden;
}

.site-brand {
    padding: 0.35rem;
    border-radius: 18px;
}

.footer-brand {
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius-sm);
}

.site-logo {
    width: 68px;
    height: 68px;
    object-fit: contain;
    border-radius: 16px;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 44px;
    padding: 0.75rem 1.1rem;
    border-radius: var(--radius-sm);
    background: var(--success);
    color: var(--white);
    font-weight: 800;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.header-cta i {
    font-size: 1.25rem;
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
    background: var(--bg-gradient);
    color: var(--white);
    padding: 6rem 0 4rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, rgba(0, 0, 0, 0) 50%);
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-block;
    background: rgba(255, 196, 0, 0.1);
    color: var(--accent);
    padding: 0.25rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 196, 0, 0.2);
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--white);
    margin-bottom: 1rem;
}

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

.hero-text .subheadline {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--light);
    margin-bottom: 1rem;
}

.hero-text .support-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
}

.hero-bullets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.hero-bullets li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    font-weight: 500;
}

.hero-bullets i {
    color: var(--success);
    font-size: 1.25rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
}

.hero-image {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.1);
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.9);
    color: var(--dark);
    box-shadow: var(--shadow-lg);
    z-index: 10;
    animation: float 4s ease-in-out infinite;
}

.floating-card i {
    font-size: 2rem;
    color: var(--primary);
}

.floating-card strong {
    display: block;
    font-size: 1.1rem;
    line-height: 1.2;
}

.floating-card span {
    font-size: 0.85rem;
    color: var(--dark-muted);
}

.floating-card:not(.card-right) {
    top: 10%;
    left: -10%;
}

.card-right {
    bottom: 10%;
    right: -10%;
    animation-delay: 2s;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* ==========================================================================
   PROBLEM SECTION
   ========================================================================== */
.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.problem-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.problem-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(20%);
}

.overlay-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0, 0, 0, 0) 0%, rgba(31, 41, 51, 0.2) 100%);
}

.problem-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.problem-card {
    background: var(--light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    min-height: 120px;
    transition: transform 0.3s ease;
}

.problem-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    justify-self: center;
    width: min(100%, calc((100% - 1rem) / 2));
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-sm);
    background: var(--white);
    border-color: rgba(239, 68, 68, 0.2);
}

.problem-card i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.problem-card span {
    display: block;
    font-weight: 600;
    line-height: 1.25;
    color: var(--dark);
}

/* ==========================================================================
   SOLUTION SECTION
   ========================================================================== */
.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.highlights-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--white);
}

.highlight-item .icon-box {
    width: 50px;
    height: 50px;
    background: rgba(249, 115, 22, 0.1);
    border: 1px solid rgba(249, 115, 22, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
}

.highlight-item .icon-box i {
    display: block;
    line-height: 1;
}

/* Video Container - Vertical 9:16 YouTube Shorts */
.video-container-vertical {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    aspect-ratio: 9/16;
    max-height: 600px;
    margin: 0 auto;
    background: #000;
}

.video-container-vertical iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ==========================================================================
   TECHNICAL SECTION
   ========================================================================== */
.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3rem;
}

.tech-card {
    flex: 1 1 175px;
    max-width: 215px;
    background: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.tech-card i {
    font-size: 3rem;
    color: var(--secondary);
    margin-bottom: 1rem;
    line-height: 1;
}

.tech-card h4 {
    font-size: 1rem;
    color: var(--dark-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tech-card p {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    font-family: var(--font-heading);
}

.tech-card .counter {
    color: var(--primary);
}

/* ==========================================================================
   MEASURES SECTION
   ========================================================================== */
.measures-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
}

.blueprint-container {
    position: relative;
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.blueprint-img {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    display: block;
    will-change: transform;
}

@keyframes craneLift {
    0% {
        transform: translateY(24px) scale(0.96);
        opacity: 0.6;
    }

    65% {
        transform: translateY(-10px) scale(1.03);
        opacity: 1;
    }

    100% {
        transform: translateY(0px) scale(1);
        opacity: 1;
    }
}

@keyframes craneFloat {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }
}

.blueprint-img.crane-animate {
    animation:
        craneLift 1s cubic-bezier(0.34, 1.56, 0.64, 1) forwards,
        craneFloat 4s 1s ease-in-out infinite;
}

.measure-line {
    position: absolute;
    background: var(--primary);
}

.measure-line::after {
    content: attr(data-label);
    position: absolute;
    background: var(--dark);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    white-space: nowrap;
}

/* Position each measure line over the blueprint image */
.height-line {
    top: 5%;
    left: 8%;
    width: 2px;
    height: 85%;
}

.height-line::after {
    top: 12px;
    left: 10px;
    transform: none;
}

.arm-line {
    top: 8%;
    left: 30%;
    width: 55%;
    height: 2px;
}

.arm-line::after {
    top: -22px;
    right: 0;
}

.base-line {
    bottom: 8%;
    left: 30%;
    width: 45%;
    height: 2px;
}

.base-line::after {
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
}

.reach-line {
    top: 62%;
    left: 15%;
    width: 30%;
    height: 2px;
}

.reach-line::after {
    top: auto;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
}

.measures-list {
    margin-top: 2rem;
}

.measures-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--light);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary);
}

/* ==========================================================================
   CHECKLIST SECTION
   ========================================================================== */
.fit-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.fit-checklist ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.fit-checklist li {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    color: var(--white);
    font-weight: 500;
}

.custom-checkbox {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 2.5rem;
    cursor: default;
    font-size: 1.1rem;
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: default;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    height: 1.5rem;
    width: 1.5rem;
    background-color: var(--success);
    border-radius: 4px;
}

.checkmark:after {
    content: "";
    position: absolute;
    display: block;
    left: 8px;
    top: 4px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* ==========================================================================
   VOLUMES SECTION
   ========================================================================== */
.volumes-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.volumes-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.includes-box {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.includes-box strong {
    display: block;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.includes-box ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.includes-box li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.includes-box i {
    color: var(--success);
}

.alert-box {
    padding: 1.5rem;
    border-radius: var(--radius-md);
    background: rgba(239, 68, 68, 0.05);
    border-left: 4px solid var(--danger);
}

.alert-box strong {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--danger);
    margin-bottom: 0.5rem;
}

.alert-box ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    color: var(--dark-muted);
}

/* ==========================================================================
   DELIVERY & WARRANTY
   ========================================================================== */
.dw-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.dw-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.dw-icon {
    width: 80px;
    height: 80px;
    background: rgba(7, 59, 58, 0.1);
    color: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.dw-icon i {
    display: block;
    line-height: 1;
}

.map-illustration {
    width: 200px;
    height: 200px;
    margin: 1.5rem auto;
}

.warranty-seal {
    width: 180px;
    height: 180px;
    margin: 1.5rem auto;
}

.ping-anim {
    animation: mapPing 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
    transform-origin: center;
}

@keyframes mapPing {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(3);
        opacity: 0;
    }
}

/* ==========================================================================
   ADAPTATIONS
   ========================================================================== */
.adaptations-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.adapt-card {
    background: var(--light);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    flex: 1 1 180px;
    max-width: 220px;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.adapt-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}

.adapt-card i {
    font-size: 2rem;
    color: var(--dark-muted);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.adapt-card p {
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-container {
    max-width: 800px;
}

.accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    text-align: left;
    padding: 1.5rem;
    background: none;
    border: none;
    font-size: 1.125rem;
    font-weight: 600;
    font-family: var(--font-heading);
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.accordion-header:hover {
    background: var(--light);
}

.accordion-header i {
    transition: transform 0.3s ease;
    color: var(--primary);
}

.accordion-header.active i {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--white);
}

.accordion-content p {
    padding: 0 1.5rem 1.5rem;
    color: var(--dark-muted);
}

/* ==========================================================================
   CTA & FORM
   ========================================================================== */
.cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.cta-image-col {
    display: flex;
    align-items: center;
    justify-content: center;
}

.cta-hero-img {
    width: 100%;
    max-width: 520px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    object-fit: cover;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem auto 0;
    max-width: 400px;
}

.cta-buttons .btn {
    text-transform: none;
    font-size: 1.05rem;
    letter-spacing: 0;
}

.btn-wrapper {
    display: inline-flex;
    flex-direction: column;
    width: fit-content;
    align-items: center;
    margin-left: auto;
    margin-right: auto;
}

.btn-wrapper .btn {
    width: 100%;
}

.btn-note {
    font-size: 0.72rem;
    opacity: 0.6;
    margin-top: 0.35rem;
    font-style: italic;
    text-align: center;
}


/* ==========================================================================
   FOOTER & FAB
   ========================================================================== */
.footer {
    background: var(--secondary-dark);
    color: rgba(255, 255, 255, 0.5);
    padding: 2.5rem 0 6rem;
    /* Clearance for FAB on mobile */
    font-size: 0.875rem;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.footer-logo {
    width: min(280px, 70vw);
    height: auto;
    border-radius: var(--radius-sm);
}

.footer p {
    margin: 0;
    text-align: right;
}

.fab-whatsapp {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--success);
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    transition: transform 0.3s ease;
}

.fab-text {
    position: absolute;
    right: 75px;
    background: var(--white);
    color: var(--dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px);
    transition: all 0.3s ease;
}

.fab-whatsapp:hover {
    transform: scale(1.1);
}

.fab-whatsapp:hover .fab-text {
    opacity: 1;
    transform: translateX(0);
}

/* ==========================================================================
   RESPONSIVE DESIGN (Mobile First adjusted backwards for Desktop First css approach)
   ========================================================================== */
@media (max-width: 992px) {

    .hero-content,
    .problem-grid,
    .solution-grid,
    .measures-grid,
    .fit-grid,
    .volumes-grid,
    .cta-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .hero-bullets {
        text-align: left;
        display: inline-grid;
        margin: 0 auto 2.5rem;
    }

    .hero-actions {
        justify-content: center;
    }

    .floating-card {
        display: none;
    }

    .problem-content {
        order: -1;
    }

    .section-title,
    .section-desc {
        text-align: center !important;
        margin-left: auto;
        margin-right: auto;
    }

    .measures-content {
        order: -1;
    }

    .blueprint-container {
        padding: 1.5rem;
    }

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

    .fit-content .btn {
        margin: 1rem auto 0;
    }

    .volumes-content {
        order: -1;
    }

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

    .cta-buttons {
        margin: 2rem auto 0;
    }

    /* Solution section: center the vertical video */
    .solution-grid {
        gap: 2.5rem;
    }

    .video-container-vertical {
        max-height: 500px;
        max-width: 340px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-py: 3.5rem;
        --container-px: 1.25rem;
    }

    .site-header {
        display: none;
    }

    .site-header-inner {
        min-height: 76px;
    }

    .site-logo {
        width: 58px;
        height: 58px;
        border-radius: 14px;
    }

    .header-cta {
        min-height: 40px;
        padding: 0.65rem 0.85rem;
        font-size: 0.9rem;
    }

    .hero {
        padding: 3.5rem 0 2.5rem;
        min-height: auto;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-text .subheadline {
        font-size: 1.1rem;
    }

    .hero-text .support-text {
        font-size: 1rem;
    }

    .hero-bullets {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .section-desc {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
        font-size: clamp(0.82rem, 2.8vw, 1rem);
        padding: 0.875rem clamp(0.85rem, 3vw, 1.5rem);
        gap: 0.4rem;
    }

    .btn[style*="fit-content"],
    .btn-fit {
        width: 100% !important;
    }

    .btn-wrapper {
        width: 100%;
        max-width: 24rem;
    }

    .problem-cards {
        grid-template-columns: 1fr 1fr;
    }

    .highlights-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .highlight-item strong {
        font-size: 0.95rem;
    }

    .video-container-vertical {
        max-height: 450px;
        max-width: 300px;
    }

    .tech-grid {
        gap: 1rem;
    }

    .tech-card {
        flex: 1 1 calc(50% - 0.5rem);
        max-width: calc(50% - 0.5rem);
        padding: 1.25rem 1rem;
    }

    .tech-card i {
        font-size: 2.25rem;
    }

    .tech-card p {
        font-size: 1.25rem;
    }

    .blueprint-container {
        padding: 1rem;
    }

    .measure-line::after {
        font-size: 0.625rem;
        padding: 0.15rem 0.35rem;
    }

    .measures-list li {
        font-size: 1rem;
        padding: 0.75rem;
    }

    .custom-checkbox {
        font-size: 0.95rem;
    }

    .fit-checklist li {
        padding: 0.75rem 1rem;
    }

    .includes-box ul {
        grid-template-columns: 1fr;
    }

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

    .dw-card {
        padding: 1.5rem;
    }

    .map-illustration,
    .warranty-seal {
        width: 160px;
        height: 160px;
    }

    .adaptations-grid {
        gap: 1rem;
    }

    .adapt-card {
        flex: 1 1 140px;
        max-width: none;
        padding: 1.25rem 1rem;
    }

    .glass-panel {
        padding: 1.5rem;
    }

    .glass-panel-dark {
        padding: 1.5rem;
    }

    .accordion-header {
        padding: 1rem;
        font-size: 1rem;
    }

    .accordion-content p {
        padding: 0 1rem 1rem;
        font-size: 0.95rem;
    }

    .fab-whatsapp {
        bottom: 1rem;
        right: 1rem;
        width: 56px;
        height: 56px;
        font-size: 2rem;
    }

    .fab-text {
        display: none;
    }

    .footer-inner {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }

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

@media (max-width: 480px) {
    :root {
        --section-py: 2.5rem;
        --container-px: 1rem;
    }

    .site-header-inner {
        min-height: 68px;
    }

    .site-logo {
        width: 52px;
        height: 52px;
        border-radius: 12px;
    }

    .header-cta {
        padding: 0.6rem 0.75rem;
        font-size: 0.82rem;
    }

    .hero {
        padding: 2.5rem 0 2rem;
    }

    .hero-text h1 {
        font-size: 1.65rem;
    }

    .hero-text .subheadline {
        font-size: 1rem;
    }

    .hero-text .support-text {
        font-size: 0.9rem;
        margin-bottom: 1.25rem;
    }

    .hero-bullets li {
        font-size: 0.875rem;
    }

    .hero-bullets i {
        font-size: 1.1rem;
    }

    .badge {
        font-size: 0.75rem;
        padding: 0.2rem 0.75rem;
    }

    .section-title {
        font-size: 1.35rem;
    }

    .section-desc {
        font-size: 0.9rem;
    }

    .btn {
        font-size: clamp(0.72rem, 3.3vw, 0.9rem);
        padding: 0.75rem 0.75rem;
        gap: 0.35rem;
        letter-spacing: 0;
    }

    .btn i {
        font-size: 1.1em;
    }

    .problem-cards {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    .problem-card {
        padding: 1rem 0.5rem;
    }

    .problem-card i {
        font-size: 1.75rem;
    }

    .problem-card span {
        font-size: 0.85rem;
    }

    .video-container-vertical {
        max-height: 400px;
        max-width: 260px;
        border-radius: var(--radius-md);
    }

    .tech-grid {
        gap: 0.75rem;
    }

    .tech-card {
        flex: 1 1 calc(50% - 0.375rem);
        max-width: calc(50% - 0.375rem);
    }

    .tech-card {
        padding: 1rem 0.75rem;
    }

    .tech-card i {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .tech-card h4 {
        font-size: 0.75rem;
        letter-spacing: 0.5px;
    }

    .tech-card p {
        font-size: 1.1rem;
    }

    .blueprint-container {
        padding: 0.75rem;
    }

    .measure-line {
        display: none;
    }

    .measures-list li {
        font-size: 0.9rem;
        gap: 0.5rem;
    }

    .custom-checkbox {
        font-size: 0.875rem;
        padding-left: 2.25rem;
    }

    .checkmark {
        height: 1.25rem;
        width: 1.25rem;
    }

    .checkmark:after {
        left: 6px;
        top: 3px;
        width: 4px;
        height: 8px;
    }

    .includes-box {
        padding: 1rem;
    }

    .includes-box strong {
        font-size: 1.1rem;
    }

    .alert-box {
        padding: 1rem;
    }

    .dw-card {
        gap: 0.75rem;
    }

    .dw-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }

    .map-illustration,
    .warranty-seal {
        width: 140px;
        height: 140px;
    }

    .adapt-card {
        flex: 1 1 calc(50% - 0.5rem);
        padding: 1rem 0.75rem;
    }

    .adapt-card i {
        font-size: 1.5rem;
    }

    .adapt-card h4 {
        font-size: 0.9rem;
    }

    .adapt-card p {
        font-size: 0.8rem;
    }

    .accordion-header {
        padding: 0.875rem;
        font-size: 0.9rem;
        gap: 0.5rem;
    }

    .accordion-content p {
        padding: 0 0.875rem 0.875rem;
        font-size: 0.875rem;
    }

    .footer {
        padding-bottom: 5rem;
    }

    .footer-logo {
        width: min(240px, 82vw);
    }
}