/* ============================================================
   LUME TECH — Landing Page Stylesheet
   Design: Dark tech, clean, professional, conversion-focused
   ============================================================ */

/* ========== CSS VARIABLES ========== */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #111118;
    --color-bg-tertiary: #16161f;
    --color-bg-card: #1a1a25;
    --color-bg-card-hover: #1f1f2e;

    --color-accent-primary: #E06B1F;
    --color-accent-secondary: #E8802E;
    --color-accent-glow: rgba(224, 107, 31, 0.25);
    --color-accent-gradient: linear-gradient(135deg, #D4631A, #E8802E);
    --color-accent-gradient-hover: linear-gradient(135deg, #E06B1F, #ED8C3A);

    --color-green: #00d4aa;
    --color-green-glow: rgba(0, 212, 170, 0.2);

    --color-text-primary: #f0f0f5;
    --color-text-secondary: #a0a0b8;
    --color-text-muted: #6b6b80;

    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(255, 255, 255, 0.12);

    --color-whatsapp: #25D366;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.5rem;
    --fs-4xl: 3.25rem;
    --fs-5xl: 4rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --header-height: 6.5rem;

    /* Effects */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 50%;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px var(--color-accent-glow);

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--fs-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

input, textarea {
    font-family: inherit;
    outline: none;
}

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

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.text-gradient {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-lume {
    color: var(--color-accent-primary);
}

.brand-tech {
    color: #5A6068;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-subtitle {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-accent-secondary);
    font-size: var(--fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--fs-3xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.section-description {
    font-size: var(--fs-md);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: var(--fs-sm);
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.btn-primary:hover {
    background: var(--color-accent-gradient-hover);
    box-shadow: 0 6px 25px var(--color-accent-glow);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1.5px solid var(--color-border-hover);
}

.btn-outline:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-secondary);
    background: rgba(224, 107, 31, 0.05);
}

.btn-lg {
    padding: 1rem 2.25rem;
    font-size: var(--fs-base);
    border-radius: var(--radius-lg);
}

.btn-full {
    width: 100%;
}

/* ========== HEADER ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: all var(--transition-base);
    background: transparent;
    overflow: visible;
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.nav-logo-img {
    height: 198px;
    width: auto;
    object-fit: contain;
    transition: opacity var(--transition-fast);
    transform: translateY(8%);
}

.nav-logo-img:hover {
    opacity: 0.85;
}

.footer-logo-img {
    height: 130px;
}

.logo-lume {
    color: var(--color-text-primary);
    font-size: var(--fs-xl);
    font-weight: 800;
}

.logo-tech {
    color: var(--color-accent-primary);
    font-size: var(--fs-xl);
    font-weight: 800;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent-gradient);
    border-radius: 1px;
    transition: width var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-nav {
    padding: 0.625rem 1.25rem;
    font-size: var(--fs-xs);
}

.btn-nav-support {
    box-shadow: none;
    transform: translateY(8%);
}

.nav-toggle,
.nav-close {
    display: none;
    font-size: var(--fs-xl);
    color: var(--color-text-primary);
    cursor: pointer;
}

/* ========== HERO ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero-bg-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
}

.hero-glow-1 {
    width: 600px;
    height: 600px;
    background: var(--color-accent-primary);
    top: -200px;
    right: -100px;
    opacity: 0.15;
}

.hero-glow-2 {
    width: 400px;
    height: 400px;
    background: var(--color-green);
    bottom: -100px;
    left: -100px;
    opacity: 0.08;
}

.hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(224, 107, 31, 0.1);
    border: 1px solid rgba(224, 107, 31, 0.2);
    padding: 0.35rem 1rem;
    border-radius: var(--radius-xl);
    font-size: var(--fs-xs);
    color: var(--color-accent-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.hero-title {
    font-size: var(--fs-3xl);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.6s ease 0.1s forwards;
    opacity: 0;
}

.hero-description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    max-width: 540px;
    animation: fadeInUp 0.6s ease 0.2s forwards;
    opacity: 0;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    animation: fadeInUp 0.6s ease 0.4s forwards;
    opacity: 0;
}

.hero-stat {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    min-width: 100px;
}

.hero-stat-number {
    font-size: var(--fs-xl);
    font-weight: 800;
    color: var(--color-accent-secondary);
    font-variant-numeric: tabular-nums;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    line-height: 1;
}

.hero-stat-text {
    font-variant-numeric: normal;
}

.hero-stat-row {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0;
    height: 32px;
    line-height: 1;
}

.hero-stat-symbol {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--color-accent-primary);
}

.hero-stat-label {
    display: block;
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-stat-divider {
    width: 1px;
    height: 32px;
    background: var(--color-border);
}

/* Hero Visual / Circuit Illustration */
.hero-visual {
    position: relative;
    animation: fadeInRight 0.8s ease 0.3s forwards;
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-circuit {
    position: relative;
    width: 340px;
    height: 340px;
}

/* Central Hub */
.circuit-hub {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 76px;
    height: 76px;
    z-index: 3;
}

.circuit-hub-ring {
    position: absolute;
    inset: 0;
    border: 2px solid var(--color-accent-primary);
    border-radius: var(--radius-full);
    opacity: 0.3;
    animation: hubPulse 3s ease-in-out infinite;
}

.circuit-hub-ring-2 {
    inset: -12px;
    border-color: var(--color-accent-secondary);
    opacity: 0.15;
    animation-delay: 1.5s;
}

.circuit-hub-core {
    position: absolute;
    inset: 8px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 30px rgba(224, 107, 31, 0.35), 0 0 60px rgba(224, 107, 31, 0.15);
}

.circuit-hub-core i {
    font-size: 1.5rem;
    color: #fff;
}

/* Circuit Nodes */
.circuit-node {
    position: absolute;
    width: 42px;
    height: 42px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.circuit-node i {
    font-size: 1rem;
    color: var(--color-accent-secondary);
}

.circuit-node:hover {
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 20px rgba(224, 107, 31, 0.25);
    transform: scale(1.15);
}

/* Node positions — 6 nodes at 60° intervals around center */
.circuit-node-1 { top: 0;    left: 50%;  transform: translateX(-50%); }          /* 12 o'clock */
.circuit-node-2 { top: 15%;  right: 5%;  }                                       /* 2 o'clock  */
.circuit-node-3 { bottom: 15%; right: 5%; }                                      /* 4 o'clock  */
.circuit-node-4 { bottom: 0;   left: 50%; transform: translateX(-50%); }         /* 6 o'clock  */
.circuit-node-5 { bottom: 15%; left: 5%;  }                                      /* 8 o'clock  */
.circuit-node-6 { top: 15%;    left: 5%;  }                                      /* 10 o'clock */

/* SVG Connection Lines */
.circuit-lines {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.circuit-line {
    stroke: var(--color-accent-primary);
    stroke-width: 1.5;
    opacity: 0.2;
    stroke-dasharray: 6 4;
    animation: dashFlow 2s linear infinite;
}

.circuit-line:nth-child(2) { animation-delay: 0.33s; }
.circuit-line:nth-child(3) { animation-delay: 0.66s; }
.circuit-line:nth-child(4) { animation-delay: 1s; }
.circuit-line:nth-child(5) { animation-delay: 1.33s; }
.circuit-line:nth-child(6) { animation-delay: 1.66s; }

/* Floating Particles */
.circuit-particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--color-accent-primary);
    border-radius: var(--radius-full);
    opacity: 0;
    z-index: 2;
    box-shadow: 0 0 8px rgba(224, 107, 31, 0.5);
    animation: particleFloat 4s ease-in-out infinite;
}

.circuit-particle-1 {
    top: 30%; left: 25%;
    animation-delay: 0s;
}

.circuit-particle-2 {
    top: 20%; right: 30%;
    animation-delay: 1s;
}

.circuit-particle-3 {
    bottom: 25%; left: 30%;
    animation-delay: 2s;
}

.circuit-particle-4 {
    bottom: 30%; right: 25%;
    animation-delay: 3s;
}

/* ========== ABOUT ========== */
.about {
    background: var(--color-bg-secondary);
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.about-container {
    width: 100%;
}

.about .section-header {
    margin-bottom: var(--spacing-sm);
}

.about .section-subtitle {
    font-size: var(--fs-xs);
    margin-bottom: 0.25rem;
}

.about .section-title {
    font-size: var(--fs-2xl);
    margin-bottom: 0.35rem;
}

.about .section-description {
    font-size: var(--fs-sm);
    line-height: 1.5;
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text p {
    color: var(--color-text-secondary);
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.about-text strong {
    color: var(--color-text-primary);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.about-highlight-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    padding: var(--spacing-sm);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.about-highlight-item:hover {
    border-color: var(--color-accent-primary);
    transform: translateX(6px);
}

.about-highlight-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(224, 107, 31, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-accent-secondary);
    font-size: var(--fs-base);
}

.about-highlight-text h4 {
    font-size: var(--fs-sm);
    font-weight: 700;
    margin-bottom: 2px;
    color: var(--color-text-primary);
}

.about-highlight-text p {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: 0;
    line-height: 1.5;
}

/* ========== SERVICES ========== */
.services {
    background: var(--color-bg-primary);
    height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: 0;
    overflow: hidden;
}

.services-container {
    width: 100%;
}

.services .section-header {
    margin-bottom: 0.5rem;
}

.services .section-subtitle {
    font-size: var(--fs-xs);
    margin-bottom: 0.25rem;
}

.services .section-title {
    font-size: var(--fs-2xl);
    margin-bottom: 0.35rem;
}

.services .section-description {
    font-size: var(--fs-sm);
    line-height: 1.5;
}

/* Services Swiper Carousel */
.services-swiper {
    width: 100%;
    padding-top: 0.25rem;
    padding-bottom: 0.75rem;
}

.services-swiper .swiper-slide {
    display: flex;
    justify-content: center;
    height: auto;
    transition: transform 0.5s ease, opacity 0.5s ease;
}

.services-swiper .swiper-slide-active {
    transform: scale(1.05);
    z-index: 2;
}

.services-swiper .swiper-slide:not(.swiper-slide-active) {
    opacity: 0.7;
}

.services-swiper .swiper-pagination-bullet {
    background: var(--color-text-muted);
    opacity: 0.5;
}

.services-swiper .swiper-pagination-bullet-active {
    background: var(--color-accent-primary);
    opacity: 1;
}

.services-swiper .swiper-3d .swiper-slide-shadow-left,
.services-swiper .swiper-3d .swiper-slide-shadow-right {
    background-image: none;
}

.service-card {
    width: 100%;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(224, 107, 31, 0.06);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card-featured {
    border-color: rgba(224, 107, 31, 0.3);
    background: linear-gradient(135deg, rgba(224, 107, 31, 0.05), var(--color-bg-card));
}

.service-card-featured::before {
    opacity: 1;
}

.service-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-accent-gradient);
    color: #fff;
    font-size: var(--fs-xs);
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-xl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-icon-wrapper {
    margin-bottom: var(--spacing-xs);
}

.service-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(224, 107, 31, 0.1);
    border-radius: var(--radius-md);
    font-size: var(--fs-lg);
    color: var(--color-accent-secondary);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: var(--color-accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.service-title {
    font-size: var(--fs-base);
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.service-description {
    font-size: var(--fs-xs);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.service-features li i {
    color: var(--color-green);
    font-size: var(--fs-xs);
}

.services-cta {
    text-align: center;
    margin-top: 0.25rem;
}

.services-cta p {
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
    font-size: var(--fs-sm);
}

.services-cta .btn {
    padding: 0.6rem 1.5rem;
    font-size: var(--fs-sm);
}

/* ========== DIFFERENTIALS ========== */
.differentials {
    background: var(--color-bg-secondary);
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.differentials-container {
    width: 100%;
}

.differentials .section-header {
    margin-bottom: var(--spacing-sm);
}

.differentials .section-subtitle {
    font-size: var(--fs-xs);
    margin-bottom: 0.25rem;
}

.differentials .section-title {
    font-size: var(--fs-2xl);
    margin-bottom: 0.35rem;
}

.differentials .section-description {
    font-size: var(--fs-sm);
    line-height: 1.5;
}

/* Differentials Swiper Carousel */
.differentials-swiper {
    width: 100%;
    padding-top: 0.25rem;
    padding-bottom: 1.5rem;
}

.differentials-swiper .swiper-slide {
    display: flex;
    justify-content: center;
    height: auto;
    transition: transform 0.5s ease, opacity 0.5s ease;
}

.differentials-swiper .swiper-slide-active {
    transform: scale(1.05);
    z-index: 2;
}

.differentials-swiper .swiper-slide:not(.swiper-slide-active) {
    opacity: 0.7;
}

.differentials-swiper .swiper-pagination-bullet {
    background: var(--color-text-muted);
    opacity: 0.5;
}

.differentials-swiper .swiper-pagination-bullet-active {
    background: var(--color-accent-primary);
    opacity: 1;
}

.differential-card {
    width: 100%;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.differential-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.differential-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(224, 107, 31, 0.06);
}

.differential-card:hover::before {
    opacity: 1;
}

.differential-icon-wrapper {
    margin-bottom: var(--spacing-xs);
}

.differential-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(224, 107, 31, 0.1);
    border-radius: var(--radius-md);
    font-size: var(--fs-lg);
    color: var(--color-accent-secondary);
    transition: all var(--transition-base);
}

.differential-card:hover .differential-icon {
    background: var(--color-accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.differential-title {
    font-size: var(--fs-base);
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.differential-description {
    font-size: var(--fs-xs);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.differential-features {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.differential-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.differential-features li i {
    color: var(--color-green);
    font-size: var(--fs-xs);
}

/* ========== PROCESS / COMO FUNCIONA ========== */
.process {
    background: var(--color-bg-primary);
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.process-container {
    width: 100%;
}

.process .section-header {
    margin-bottom: var(--spacing-sm);
}

.process .section-subtitle {
    font-size: var(--fs-xs);
    margin-bottom: 0.25rem;
}

.process .section-title {
    font-size: var(--fs-2xl);
    margin-bottom: 0.35rem;
}

.process .section-description {
    font-size: var(--fs-sm);
    line-height: 1.5;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    max-width: 1100px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.process-step-number {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-accent-primary);
    border-radius: var(--radius-full);
    font-size: var(--fs-lg);
    font-weight: 800;
    color: var(--color-accent-secondary);
    z-index: 2;
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-xs);
}

.process-step:hover .process-step-number {
    background: var(--color-accent-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 25px var(--color-accent-glow);
}

.process-step-connector {
    position: absolute;
    top: 24px;
    left: calc(50% + 28px);
    width: calc(100% - 56px);
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    opacity: 0.3;
    z-index: 1;
}

.process-step:last-child .process-step-connector {
    display: none;
}

.process-step-content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    width: 100%;
}

.process-step:hover .process-step-content {
    border-color: var(--color-accent-primary);
}

.process-step-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(224, 107, 31, 0.1);
    border-radius: var(--radius-sm);
    font-size: var(--fs-base);
    color: var(--color-accent-secondary);
    margin: 0 auto var(--spacing-xs);
}

.process-step-title {
    font-size: var(--fs-sm);
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-text-primary);
}

.process-step-description {
    font-size: var(--fs-xs);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.process-cta {
    text-align: center;
    margin-top: var(--spacing-md);
}

.process-cta .btn {
    padding: 0.6rem 1.5rem;
    font-size: var(--fs-sm);
}

/* ========== TESTIMONIALS — 3D CAROUSEL ========== */
.testimonials {
    background: var(--color-bg-secondary);
    overflow: hidden;
}

.testimonials-carousel-3d {
    position: relative;
}

.carousel-3d-scene {
    perspective: 1200px;
    overflow: visible;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 420px;
    position: relative;
}

.carousel-3d-track {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 380px;
    transform-style: preserve-3d;
    outline: none;
    cursor: grab;
    user-select: none;
}

.carousel-3d-track:active {
    cursor: grabbing;
}

.testimonial-card {
    position: absolute;
    width: 380px;
    max-width: 85vw;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all 0.5s cubic-bezier(0.77, 0, 0.18, 1);
    transform-style: preserve-3d;
    backface-visibility: hidden;
    will-change: transform, opacity;
}

.testimonial-card:hover {
    border-color: var(--color-accent-primary);
}

.testimonial-quote-icon {
    position: absolute;
    top: -14px;
    left: var(--spacing-xl);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-full);
    color: #fff;
    font-size: var(--fs-sm);
    box-shadow: 0 4px 12px var(--color-accent-glow);
}

.testimonial-stars {
    display: flex;
    gap: 3px;
    margin-bottom: var(--spacing-md);
}

.testimonial-stars i {
    color: #fbbf24;
    font-size: var(--fs-sm);
}

.testimonial-text {
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(224, 107, 31, 0.15);
    border-radius: var(--radius-full);
    color: var(--color-accent-secondary);
    font-size: var(--fs-lg);
}

.testimonial-info h4 {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--color-text-primary);
}

.testimonial-info span {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.testimonials-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.testimonial-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: var(--fs-sm);
    transition: all var(--transition-base);
}

.testimonial-btn:hover {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: #fff;
}

.testimonials-dots {
    display: flex;
    gap: 8px;
}

.testimonial-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    padding: 0;
}

.testimonial-dot.active {
    background: var(--color-accent-primary);
    width: 28px;
    border-radius: 5px;
}

/* ========== CONTACT + FOOTER WRAPPER ========== */
.contact-footer-wrapper {
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--header-height));
    max-height: calc(100vh - var(--header-height));
    overflow: hidden;
}

/* ========== CONTACT ========== */
.contact {
    background: var(--color-bg-primary);
    flex: 1;
    display: flex;
    align-items: center;
    padding: var(--spacing-xs) 0;
}

.contact-container {
    width: 100%;
}

.contact .section-header {
    margin-bottom: var(--spacing-xs);
}

.contact .section-subtitle {
    font-size: var(--fs-xs);
    margin-bottom: 0.25rem;
}

.contact .section-title {
    font-size: var(--fs-2xl);
    margin-bottom: 0.35rem;
}

.contact .section-description {
    font-size: var(--fs-sm);
    line-height: 1.5;
}

.contact-content {
    display: grid;
    gap: var(--spacing-xs);
}

/* Contact Icon Buttons */
.contact-icons-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.contact-icon-btn {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    color: #888;
    font-size: var(--fs-xl);
    transition: all var(--transition-base);
}

.contact-icon-btn .google-logo {
    width: 22px;
    height: 22px;
}

.contact-icon-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.contact-icon-btn.whatsapp:hover {
    background: rgba(37, 211, 102, 0.15);
    border-color: #25D366;
    color: #25D366;
}

.contact-icon-btn.facebook:hover {
    background: rgba(24, 119, 242, 0.15);
    border-color: #1877F2;
    color: #1877F2;
}

.contact-icon-btn.instagram:hover {
    background: linear-gradient(135deg, rgba(253, 29, 29, 0.12), rgba(131, 58, 180, 0.12));
    border-color: #E1306C;
    color: #E1306C;
}

.contact-icon-btn.location:hover {
    background: rgba(234, 67, 53, 0.15);
    border-color: #EA4335;
    color: #EA4335;
}

.contact-social-text {
    text-align: center;
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.contact-google-review {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: var(--spacing-xs);
}

.contact-google-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    text-decoration: none;
    transition: all var(--transition-base);
}

.contact-google-link:hover {
    transform: translateY(-3px);
}

.google-logo-full {
    filter: grayscale(100%) brightness(0.7);
    opacity: 0.6;
    transition: all var(--transition-base);
}

.contact-google-link:hover .google-logo-full {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
}

.contact-google-text {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.contact-google-link:hover .contact-google-text {
    color: var(--color-text-secondary);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-width: 720px;
    margin: 0 auto;
}

.form-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-field label {
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 0.6rem 0.875rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--fs-xs);
    transition: all var(--transition-fast);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
    color: var(--color-text-muted);
}

.form-field input:focus,
.form-field textarea:focus {
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-field textarea {
    resize: vertical;
    min-height: 60px;
}

.contact-form .btn {
    padding: 0.6rem 1.5rem;
    font-size: var(--fs-sm);
}

/* Form Message */
.form-message {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    font-weight: 600;
    transition: opacity 0.3s ease;
}

.form-message-success {
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    color: var(--color-green);
}

.form-message-error {
    background: rgba(255, 95, 87, 0.1);
    border: 1px solid rgba(255, 95, 87, 0.3);
    color: #ff5f57;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 0.25rem 0;
    flex-shrink: 0;
}

.footer-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    line-height: 0;
}

.footer-row .nav-logo-img {
    display: block;
}

.footer-row .nav-logo {
    flex-shrink: 0;
}

.footer-bottom {
    padding-top: 0.25rem;
    margin-top: 0.25rem;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-whatsapp);
    border-radius: var(--radius-full);
    color: #fff;
    font-size: 1.75rem;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: calc(100% + 12px);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px);
    transition: all var(--transition-base);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}



/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes hubPulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.15); opacity: 0.5; }
}

@keyframes dashFlow {
    to { stroke-dashoffset: -20; }
}

@keyframes particleFloat {
    0%   { opacity: 0; transform: scale(0.5) translate(0, 0); }
    20%  { opacity: 0.8; }
    50%  { opacity: 1; transform: scale(1) translate(10px, -15px); }
    80%  { opacity: 0.6; }
    100% { opacity: 0; transform: scale(0.5) translate(-5px, 10px); }
}

/* Scroll reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ========== CASES DE SUCESSO ========== */
.cases {
    background: var(--color-bg-secondary);
    height: calc(100vh - var(--header-height));
    max-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: 0;
    overflow: hidden;
}

.cases-container {
    width: 100%;
}

.cases .section-header {
    margin-bottom: var(--spacing-sm);
}

.cases .section-subtitle {
    font-size: var(--fs-xs);
    margin-bottom: 0.25rem;
}

.cases .section-title {
    font-size: var(--fs-2xl);
    margin-bottom: 0.35rem;
}

.cases .section-description {
    font-size: var(--fs-sm);
    line-height: 1.5;
}

.cases-gallery {
    padding: 0 var(--spacing-md);
    display: flex;
    width: 100%;
    justify-content: center;
}

.cases-wrapper {
    max-width: 900px;
    width: 100%;
    position: relative;
}

.cases-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    height: 44px;
    width: 44px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-gradient);
    color: #fff;
    border-radius: var(--radius-full);
    z-index: 10;
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.cases-arrow:hover {
    box-shadow: 0 6px 25px var(--color-accent-glow);
    transform: translateY(-50%) scale(1.1);
}

#cases-left {
    left: -22px;
    display: none;
}

#cases-right {
    right: -22px;
}

.cases-carousel {
    display: flex;
    gap: var(--spacing-sm);
    overflow: hidden;
    cursor: pointer;
    scroll-behavior: smooth;
    padding: var(--spacing-sm) 0;
}

.cases-carousel.dragging {
    cursor: grab;
    scroll-behavior: auto;
}

.cases-carousel.dragging .cases-card {
    pointer-events: none;
}

.cases-card {
    width: 260px;
    min-width: 260px;
    height: 160px;
    flex-shrink: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.cases-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.cases-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(224, 107, 31, 0.06);
}

.cases-card:hover::before {
    opacity: 1;
}

.cases-card img {
    width: 80%;
    height: 80%;
    object-fit: contain;
    filter: grayscale(100%) brightness(0.8);
    opacity: 0.7;
    transition: all var(--transition-base);
}

.cases-card:hover img {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
}

/* ========== RESPONSIVE ========== */

/* Tablet Large */
@media (max-width: 1024px) {
    :root {
        --fs-4xl: 2.75rem;
        --fs-3xl: 2rem;
    }

    /* Hero */
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .hero-description {
        margin: 0 auto var(--spacing-md);
    }

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

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

    .hero-visual {
        max-width: 300px;
        margin: 0 auto;
    }

    .hero-circuit {
        width: 300px;
        height: 300px;
    }

    /* About */
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    /* Footer */
    .footer-row {
        justify-content: center;
        gap: var(--spacing-lg);
    }
}

/* Tablet */
@media (max-width: 768px) {
    :root {
        --fs-4xl: 2.25rem;
        --fs-3xl: 1.75rem;
        --fs-2xl: 1.35rem;
    }

    /* Sections — disable full-viewport and let content flow naturally */
    .services,
    .differentials,
    .process,
    .cases,
    .contact,
    .about {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    .contact-footer-wrapper {
        min-height: auto;
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    .section-header {
        margin-bottom: var(--spacing-md);
    }

    /* Mobile Nav */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        background: var(--color-bg-secondary);
        border-left: 1px solid var(--color-border);
        padding: 5rem 2rem 2rem;
        transition: right var(--transition-smooth);
        z-index: 1000;
    }

    .nav-menu.show-menu {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .nav-link {
        font-size: var(--fs-lg);
    }

    .nav-close {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        width: 36px;
        height: 36px;
        background: var(--color-bg-tertiary);
        border-radius: var(--radius-sm);
    }

    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
    }

    .btn-nav {
        display: none;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + var(--spacing-lg));
        padding-bottom: var(--spacing-lg);
    }

    .hero-circuit {
        width: 260px;
        height: 260px;
    }

    .circuit-hub {
        width: 66px;
        height: 66px;
    }

    .circuit-node {
        width: 36px;
        height: 36px;
    }

    .circuit-node i {
        font-size: 0.85rem;
    }

    /* About */
    .about-text p {
        font-size: var(--fs-xs);
    }

    .about-highlight-icon {
        width: 36px;
        height: 36px;
        min-width: 36px;
        font-size: var(--fs-sm);
    }

    /* Services & Differentials */
    .service-card,
    .differential-card {
        padding: var(--spacing-sm);
    }

    /* Cases */
    .cases {
        padding: var(--spacing-md) 0;
    }

    .cases-card {
        width: 200px;
        min-width: 200px;
        height: 130px;
        padding: var(--spacing-md);
    }

    .cases-arrow {
        width: 38px;
        height: 38px;
        font-size: 0.85rem;
    }

    #cases-left { left: -19px; }
    #cases-right { right: -19px; }

    /* Process */
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .process-step-connector {
        display: none;
    }

    /* Contact */
    .contact-icons-row {
        gap: var(--spacing-sm);
    }

    .form-group {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }

    /* Footer */
    .footer-row {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    /* Testimonials */
    .testimonial-card {
        width: 320px;
    }

    .carousel-3d-scene {
        min-height: 380px;
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --fs-4xl: 1.75rem;
        --fs-3xl: 1.35rem;
        --fs-2xl: 1.2rem;
        --fs-xl: 1.15rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    /* All sections — content flow, no forced viewport */
    .services,
    .differentials,
    .process,
    .cases,
    .contact,
    .about {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + var(--spacing-md));
        padding-bottom: var(--spacing-md);
    }

    .hero-title {
        font-size: var(--fs-3xl);
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .hero-stat-divider {
        width: 40px;
        height: 1px;
    }

    .hero-circuit {
        width: 220px;
        height: 220px;
    }

    .circuit-hub {
        width: 56px;
        height: 56px;
    }

    .circuit-hub-core i {
        font-size: 1rem;
    }

    .circuit-node {
        width: 32px;
        height: 32px;
    }

    .circuit-node i {
        font-size: 0.7rem;
    }

    /* About */
    .about-content {
        gap: var(--spacing-md);
    }

    .about-highlight-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    /* Services & Differentials cards */
    .service-card,
    .differential-card {
        padding: var(--spacing-sm);
    }

    /* Cases */
    .cases {
        padding: var(--spacing-sm) 0;
    }

    .cases-card {
        width: 180px;
        min-width: 180px;
        height: 110px;
        padding: var(--spacing-sm);
    }

    .cases-gallery {
        padding: 0 var(--spacing-sm);
    }

    .cases-arrow {
        width: 34px;
        height: 34px;
        font-size: 0.75rem;
    }

    #cases-left { left: -12px; }
    #cases-right { right: -12px; }

    .service-icon,
    .differential-icon {
        width: 38px;
        height: 38px;
        font-size: var(--fs-base);
    }

    /* Process */
    .process-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .process-step-connector {
        display: none;
    }

    .process-step-number {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: var(--fs-base);
    }

    /* Contact */
    .contact-icon-btn {
        width: 42px;
        height: 42px;
        font-size: var(--fs-lg);
    }

    .form-field textarea {
        min-height: 70px;
    }

    /* Testimonials */
    .testimonial-card {
        width: 280px;
        padding: var(--spacing-md);
    }

    .carousel-3d-scene {
        min-height: 360px;
    }

    /* Float elements */
    .whatsapp-float {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 54px;
        height: 54px;
        font-size: 1.5rem;
    }

    .whatsapp-tooltip {
        display: none;
    }


}