/* ========================================
   TECHPRONT — Design System & Styles
   Colors based on logo: Blue metallic + Silver/Gray
   ======================================== */

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

[hidden] {
    display: none !important;
}

:root {
    /* Primary — Blue tones from logo */
    --blue-50: #e8f0fe;
    --blue-100: #c5d9fc;
    --blue-200: #9ebef9;
    --blue-300: #6fa0f5;
    --blue-400: #4a88f0;
    --blue-500: #2570eb;
    --blue-600: #1a5bd4;
    --blue-700: #1247b0;
    --blue-800: #0d3690;
    --blue-900: #082567;

    /* Secondary — Steel / Silver from logo */
    --steel-50: #f5f7fa;
    --steel-100: #e8ecf1;
    --steel-200: #d1d9e4;
    --steel-300: #aab8cc;
    --steel-400: #8596ae;
    --steel-500: #667a96;
    --steel-600: #53637c;
    --steel-700: #445066;
    --steel-800: #3a4455;
    --steel-900: #1e2533;

    /* Accent — Cyan highlights from logo */
    --cyan-400: #38bdf8;
    --cyan-500: #0ea5e9;
    --cyan-600: #0284c7;

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #020617;

    /* Semantic */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--blue-500) 0%, var(--cyan-500) 100%);
    --gradient-dark: linear-gradient(135deg, var(--gray-900) 0%, var(--steel-900) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    --gradient-hero: linear-gradient(135deg, rgba(8,37,103,0.92) 0%, rgba(14,165,233,0.75) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.25);
    --shadow-glow: 0 0 40px rgba(37,112,235,0.3);
    --shadow-card: 0 4px 24px rgba(0,0,0,0.08);

    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --section-py: clamp(4rem, 8vw, 7rem);

    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-fast: 200ms var(--ease-out);
    --transition-normal: 350ms var(--ease-out);
    --transition-slow: 500ms var(--ease-out);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

/* ---- CONTAINER ---- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ---- SECTION HEADER ---- */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header__tag {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: var(--blue-50);
    color: var(--blue-600);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.section-header__title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-header__title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header__text {
    font-size: 1.1rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37,112,235,0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37,112,235,0.4);
}

.btn--outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

.btn--outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn--white {
    background: var(--white);
    color: var(--blue-600);
}

.btn--white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.btn--outline-white {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}

.btn--outline-white:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 0.9rem 2rem;
    font-size: 1rem;
}

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

.btn__icon {
    flex-shrink: 0;
}

.btn__loader {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn__loader .spinner {
    animation: spin 1s linear infinite;
}

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

/* ======================================================
   HEADER
   ====================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: 0.6rem 0;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 1px 20px rgba(0,0,0,0.2);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.header__logo {
    flex-shrink: 0;
}

.header__logo-img {
    height: 44px;
    width: auto;
    border-radius: var(--radius-sm);
    transition: transform var(--transition-fast);
}

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

.header__nav {
    display: flex;
}

.header__nav-list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.header__nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.75);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.header__nav-link:hover,
.header__nav-link.active {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.header__nav-link--highlight {
    color: var(--cyan-400);
    font-weight: 600;
}

.header__nav-link--highlight:hover {
    background: rgba(14, 165, 233, 0.15) !important;
    color: var(--white);
}

.header__cta {
    font-size: 0.85rem;
    padding: 0.6rem 1.25rem;
}

.header__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.header__hamburger span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.header__hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.header__hamburger.active span:nth-child(2) {
    opacity: 0;
}
.header__hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ======================================================
   HERO
   ====================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 6rem 0 3rem;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.hero__overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero__particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.hero__inner {
    position: relative;
    z-index: 2;
}

.hero__content {
    max-width: 750px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    color: rgba(255,255,255,0.9);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    margin-bottom: 1.5rem;
    animation: fadeInDown 0.8s var(--ease-out) both;
}

.hero__badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 5.5vw, 3.75rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 1.25rem;
    animation: fadeInUp 0.8s var(--ease-out) 0.2s both;
}

.hero__title-highlight {
    background: linear-gradient(135deg, var(--cyan-400) 0%, var(--blue-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 620px;
    animation: fadeInUp 0.8s var(--ease-out) 0.4s both;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s var(--ease-out) 0.6s both;
}

.hero__stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s var(--ease-out) 0.8s both;
}

.hero__stat {
    text-align: left;
}

.hero__stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.hero__stat-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

.hero__stat-divider {
    width: 1px;
    background: rgba(255,255,255,0.2);
    align-self: stretch;
}

/* Scroll indicator */
.hero__scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero__scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 12px;
    position: relative;
}

.hero__scroll-indicator span::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255,255,255,0.7);
    border-radius: 2px;
    animation: scroll-down 2s infinite;
}

@keyframes scroll-down {
    0% { opacity: 1; top: 6px; }
    100% { opacity: 0; top: 22px; }
}

/* ======================================================
   SERVICES
   ====================================================== */
.services {
    padding: var(--section-py) 0;
    background: var(--gray-50);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--blue-200), transparent);
}

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

.service-card {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--blue-200);
}

.service-card__glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(37,112,235,0.05) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

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

.service-card__icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    transition: transform var(--transition-normal);
}

.service-card:hover .service-card__icon-wrap {
    transform: scale(1.1) rotate(-5deg);
}

.service-card__icon {
    width: 28px;
    height: 28px;
    color: var(--white);
}

.service-card__title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.service-card__text {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.service-card__features {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.service-card__features li {
    font-size: 0.82rem;
    color: var(--gray-600);
    padding-left: 1.25rem;
    position: relative;
}

.service-card__features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 7px;
    width: 6px;
    height: 6px;
    background: var(--blue-400);
    border-radius: 50%;
}

/* ======================================================
   HOW IT WORKS
   ====================================================== */
.how-it-works {
    padding: var(--section-py) 0;
    background: var(--white);
}

.steps {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.step {
    display: flex;
    gap: 1.5rem;
    padding: 2rem 0;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 27px;
    top: 5rem;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--blue-300), var(--blue-100));
}

.step__number {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    color: var(--white);
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.step__content {
    padding-top: 0.25rem;
}

.step__title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.35rem;
}

.step__text {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ======================================================
   PRODUCTS
   ====================================================== */
.products {
    padding: var(--section-py) 0;
    background: var(--gray-900);
    position: relative;
    overflow: hidden;
}

.products::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37,112,235,0.15) 0%, transparent 70%);
    pointer-events: none;
}

.products .section-header__tag {
    background: rgba(37,112,235,0.15);
    color: var(--cyan-400);
}

.products .section-header__title {
    color: var(--white);
}

.products .section-header__text {
    color: var(--gray-400);
}

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

.product-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.product-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: var(--blue-400);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(37,112,235,0.15);
}

.product-card--coming {
    opacity: 0.6;
}

.product-card--coming:hover {
    opacity: 0.8;
}

.product-card__icon {
    width: 44px;
    height: 44px;
    margin-bottom: 1rem;
}

.product-card__icon svg {
    width: 100%;
    height: 100%;
    color: var(--cyan-400);
}

.product-card__title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.4rem;
}

.product-card__text {
    font-size: 0.85rem;
    color: var(--gray-400);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.product-card__badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    background: rgba(16,185,129,0.15);
    color: var(--success);
    border: 1px solid rgba(16,185,129,0.3);
}

.product-card__badge--soon {
    background: rgba(245,158,11,0.15);
    color: var(--warning);
    border-color: rgba(245,158,11,0.3);
}

/* ======================================================
   ABOUT
   ====================================================== */
.about {
    padding: var(--section-py) 0;
    background: var(--white);
}

.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about__image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.about__image {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

.about__image-accent {
    position: absolute;
    bottom: -2px;
    left: -2px;
    right: -2px;
    height: 6px;
    background: var(--gradient-primary);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.about__floating-card {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.about__floating-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about__floating-icon svg {
    width: 22px;
    height: 22px;
    color: var(--white);
}

.about__floating-card strong {
    display: block;
    font-size: 0.9rem;
    color: var(--gray-900);
}

.about__floating-card span {
    font-size: 0.78rem;
    color: var(--gray-500);
}

.about__content-col .section-header__tag {
    margin-bottom: 1rem;
}

.about__title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 1.25rem;
}

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

.about__text {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.about__features {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about__feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.about__feature-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--blue-50);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about__feature-icon svg {
    width: 20px;
    height: 20px;
    color: var(--blue-500);
}

.about__feature strong {
    display: block;
    font-size: 0.9rem;
    color: var(--gray-900);
}

.about__feature span {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ======================================================
   COMMERCIALIZATION
   ====================================================== */
.commercialization {
    padding: var(--section-py) 0;
    background: var(--gray-50);
}

.comm__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: start;
}

.comm-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
    position: relative;
}

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

.comm-card--featured {
    border-color: var(--blue-300);
    box-shadow: var(--shadow-glow);
    background: linear-gradient(135deg, rgba(37,112,235,0.03) 0%, rgba(14,165,233,0.03) 100%);
}

.comm-card--featured:hover {
    box-shadow: 0 0 50px rgba(37,112,235,0.25);
}

.comm-card__popular {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.3rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
}

.comm-card__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.comm-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--blue-50);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.comm-card--featured .comm-card__icon {
    background: var(--gradient-primary);
}

.comm-card__icon svg {
    width: 24px;
    height: 24px;
    color: var(--blue-500);
}

.comm-card--featured .comm-card__icon svg {
    color: var(--white);
}

.comm-card__title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--gray-900);
}

.comm-card__text {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.comm-card__list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.comm-card__list li {
    font-size: 0.88rem;
    color: var(--gray-700);
    padding-left: 1.5rem;
    position: relative;
}

.comm-card__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    width: 16px;
    height: 16px;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%232570eb' stroke-width='3' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") no-repeat center / contain;
}

/* ======================================================
   TESTIMONIALS
   ====================================================== */
.testimonials {
    padding: var(--section-py) 0;
    background: var(--white);
}

.testimonials__carousel {
    position: relative;
    overflow: hidden;
}

.testimonials__track {
    display: flex;
    transition: transform 0.5s var(--ease-out);
}

.testimonial-card {
    flex: 0 0 100%;
    max-width: 100%;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .testimonial-card {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

@media (min-width: 1024px) {
    .testimonial-card {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

.testimonial-card > div,
.testimonial-card > blockquote {
    /* Reset to allow inner card styling */
}

.testimonial-card {
    display: flex;
    flex-direction: column;
}

.testimonial-card__stars {
    display: flex;
    gap: 2px;
    margin-bottom: 1rem;
    color: #f59e0b;
}

.testimonial-card__stars svg {
    width: 18px;
    height: 18px;
}

.testimonial-card__quote {
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 1.5rem;
    flex: 1;
    position: relative;
    padding-left: 1.25rem;
    border-left: 3px solid var(--blue-400);
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.testimonial-card__avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--blue-100);
}

.testimonial-card__name {
    display: block;
    font-size: 0.95rem;
    color: var(--gray-900);
}

.testimonial-card__role {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.testimonials__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2.5rem;
}

.testimonials__btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--gray-200);
    background: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--gray-600);
}

.testimonials__btn:hover {
    background: var(--blue-500);
    border-color: var(--blue-500);
    color: var(--white);
}

.testimonials__dots {
    display: flex;
    gap: 8px;
}

.testimonials__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-300);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.testimonials__dot.active {
    background: var(--blue-500);
    width: 28px;
    border-radius: 5px;
}

/* ======================================================
   CTA BANNER
   ====================================================== */
.cta-banner {
    padding: 0;
}

.cta-banner__inner {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    position: relative;
    overflow: hidden;
    margin: -2rem 0;
    z-index: 10;
}

.cta-banner__inner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.cta-banner__title {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.cta-banner__text {
    font-size: 1rem;
    color: rgba(255,255,255,0.85);
}

.cta-banner__actions {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
    flex-wrap: wrap;
}

/* ======================================================
   CONTACT
   ====================================================== */
.contact {
    padding: calc(var(--section-py) + 2rem) 0 var(--section-py);
    background: var(--gray-50);
}

.contact__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact__inner--tecnicos {
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
}

.contact__title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

.contact__text {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.contact__channels {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact__channel {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact__channel-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--blue-50);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact__channel-icon svg {
    width: 22px;
    height: 22px;
    color: var(--blue-500);
}

.contact__channel strong {
    display: block;
    font-size: 0.85rem;
    color: var(--gray-900);
}

.contact__channel a,
.contact__channel span {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.contact__channel a:hover {
    color: var(--blue-500);
}

/* Form */
.contact__form-wrapper {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gray-700);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--gray-800);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input:focus {
    border-color: var(--blue-400);
    box-shadow: 0 0 0 3px rgba(37,112,235,0.1);
    background: var(--white);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 18px;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-disclaimer {
    font-size: 0.75rem;
    color: var(--gray-400);
    text-align: center;
    margin-top: -0.5rem;
}

/* Form success state */
.contact__form-success {
    text-align: center;
    padding: 3rem 2rem;
}

.form-success__icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(16,185,129,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.form-success__icon svg {
    width: 32px;
    height: 32px;
    color: var(--success);
}

.contact__form-success h3 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.contact__form-success p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* ======================================================
   FOOTER
   ====================================================== */
.footer {
    background: var(--gray-900);
    padding: 4rem 0 0;
}

.footer__top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__logo {
    height: 40px;
    width: auto;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.footer__description {
    font-size: 0.88rem;
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.footer__social {
    display: flex;
    gap: 0.75rem;
}

.footer__social-link {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--gray-400);
}

.footer__social-link:hover {
    background: var(--blue-500);
    border-color: var(--blue-500);
    color: var(--white);
    transform: translateY(-2px);
}

.footer__social-link svg {
    width: 18px;
    height: 18px;
}

.footer__heading {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer__links a,
.footer__links span {
    font-size: 0.85rem;
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--cyan-400);
}

.footer__bottom {
    padding: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer__bottom p {
    font-size: 0.78rem;
    color: var(--gray-500);
}

/* ======================================================
   WHATSAPP FAB
   ====================================================== */
.whatsapp-fab {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    z-index: 999;
    transition: all var(--transition-normal);
    animation: fab-entrance 0.6s var(--ease-spring) 1s both;
}

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

.whatsapp-fab::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid rgba(37,211,102,0.3);
    animation: whatsapp-ring 2s ease-out infinite;
}

@keyframes whatsapp-ring {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

@keyframes fab-entrance {
    0% { transform: scale(0) rotate(-180deg); opacity: 0; }
    100% { transform: scale(1) rotate(0); opacity: 1; }
}

.whatsapp-fab__tooltip {
    position: absolute;
    right: calc(100% + 12px);
    background: var(--white);
    color: var(--gray-800);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateX(10px);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.whatsapp-fab__tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-left-color: var(--white);
    border-right: none;
}

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

/* ======================================================
   BACK TO TOP
   ====================================================== */
.back-to-top {
    position: fixed;
    bottom: 1.5rem;
    right: 5.5rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--white);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--gray-600);
    box-shadow: var(--shadow-md);
    z-index: 999;
    transition: all var(--transition-normal);
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--blue-500);
    border-color: var(--blue-500);
    color: var(--white);
    transform: translateY(-2px);
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s var(--ease-out);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos].animated {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* Particle animation */
.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    animation: particle-float linear infinite;
}

@keyframes particle-float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-10vh) rotate(720deg);
        opacity: 0;
    }
}

/* ======================================================
   RESPONSIVE
   ====================================================== */
@media (max-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about__inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about__image {
        height: 350px;
    }

    .contact__inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .contact__inner--tecnicos {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .cta-banner__inner {
        flex-direction: column;
        text-align: center;
    }

    .footer__top {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .header__nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        z-index: 100;
    }

    .header__nav.open {
        transform: translateX(0);
    }

    .header__nav-list {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }

    .header__nav-link {
        width: 100%;
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }

    .header__cta {
        display: none;
    }

    .header__hamburger {
        display: flex;
        z-index: 200;
    }

    .hero__title {
        font-size: clamp(1.75rem, 7vw, 2.5rem);
    }

    .hero__stats {
        flex-direction: column;
        gap: 1.25rem;
    }

    .hero__stat-divider {
        display: none;
    }

    .hero__stat {
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .hero__stat-number {
        font-size: 1.75rem;
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
    }

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

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact__form-wrapper {
        padding: 1.5rem;
    }

    .cta-banner__inner {
        padding: 2rem;
        border-radius: var(--radius-lg);
    }

    .cta-banner__actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-banner__actions .btn {
        width: 100%;
    }

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

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }

    .testimonial-card {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .hero__scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .about__floating-card {
        right: 10px;
        bottom: -15px;
    }

    .whatsapp-fab {
        bottom: 1rem;
        right: 1rem;
        width: 54px;
        height: 54px;
    }

    .back-to-top {
        right: 4.5rem;
        bottom: 1rem;
        width: 40px;
        height: 40px;
    }
}

/* ======================================================
   UPLOAD DE ARQUIVOS (Para Técnicos)
   ====================================================== */
.form-file-input-wrapper {
    position: relative;
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 1.75rem 1.5rem;
    text-align: center;
    background: var(--gray-50);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.form-file-input-wrapper:hover {
    border-color: var(--blue-400);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.form-file-input-wrapper.dragover {
    border-color: var(--blue-500);
    background: var(--blue-50);
}

.form-file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
    z-index: 10;
}

.form-file-icon {
    width: 32px;
    height: 32px;
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.form-file-input-wrapper:hover .form-file-icon {
    color: var(--blue-500);
}

.form-file-label {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.4;
    pointer-events: none;
    display: block;
}

.form-file-label small {
    display: block;
    margin-top: 0.25rem;
}