/* ============================================================
   PAM — Proyectos y Asesoramiento en Aislamiento
   Premium One-Page Website Styles
   ============================================================ */

/* ---------- Reset & Variables ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand colors — warm earth tones + teal accents */
    --clr-primary: #0e7c6b;
    --clr-primary-dark: #095e52;
    --clr-primary-light: #12a68e;
    --clr-accent: #e8a54b;
    --clr-accent-light: #f5c97c;

    /* Neutrals */
    --clr-dark: #111419;
    --clr-dark-2: #1a1e25;
    --clr-gray-900: #1f2937;
    --clr-gray-700: #374151;
    --clr-gray-500: #6b7280;
    --clr-gray-300: #d1d5db;
    --clr-gray-100: #f3f4f6;
    --clr-white: #ffffff;

    /* Gradient */
    --gradient-brand: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    --gradient-dark: linear-gradient(180deg, var(--clr-dark) 0%, var(--clr-dark-2) 100%);

    /* Typography */
    --ff-body: 'Inter', -apple-system, sans-serif;
    --ff-heading: 'Playfair Display', Georgia, serif;

    /* Sizes */
    --container: 1200px;
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;

    /* Transitions */
    --ease: cubic-bezier(.4, 0, .2, 1);
    --duration: 0.35s;
}

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

body {
    font-family: var(--ff-body);
    color: var(--clr-gray-900);
    background: var(--clr-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Utilities ---------- */
.text-gradient {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--clr-primary);
    margin-bottom: 12px;
}

.section-tag--light {
    color: var(--clr-accent-light);
}

.section-title {
    font-family: var(--ff-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--clr-dark);
    margin-bottom: 16px;
}

.section-title--light {
    color: var(--clr-white);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--clr-gray-500);
    line-height: 1.8;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--ff-body);
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    white-space: nowrap;
}

.btn--primary {
    background: var(--gradient-brand);
    color: var(--clr-white);
    box-shadow: 0 4px 24px rgba(14, 124, 107, 0.35);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(14, 124, 107, 0.45);
}

.btn--outline {
    background: transparent;
    color: var(--clr-white);
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
}

.btn--outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
}

.btn--lg {
    padding: 14px 36px;
    font-size: 1rem;
}

.btn--xl {
    padding: 18px 48px;
    font-size: 1.1rem;
}

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

.btn--nav {
    padding: 10px 24px;
    background: var(--gradient-brand);
    color: var(--clr-white);
    font-size: 0.9rem;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--duration) var(--ease);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 24px rgba(0, 0, 0, 0.08);
    padding: 12px 0;
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand__icon {
    font-size: 1.4rem;
    color: var(--clr-accent);
    transition: color var(--duration) var(--ease);
}

.brand__text {
    font-family: var(--ff-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--clr-white);
    transition: color var(--duration) var(--ease);
}

.brand__sub {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, .6);
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color var(--duration) var(--ease);
}

.navbar.scrolled .brand__text {
    color: var(--clr-dark);
}

.navbar.scrolled .brand__sub {
    color: var(--clr-gray-500);
}

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

.navbar__links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, .85);
    transition: color var(--duration) var(--ease);
    position: relative;
}

.navbar__links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--clr-accent);
    transition: width var(--duration) var(--ease);
}

.navbar__links a:not(.btn):hover::after {
    width: 100%;
}

.navbar.scrolled .navbar__links a:not(.btn) {
    color: var(--clr-gray-700);
}

.navbar.scrolled .navbar__links a:not(.btn):hover {
    color: var(--clr-primary);
}

.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.navbar__toggle span {
    width: 24px;
    height: 2px;
    background: var(--clr-white);
    border-radius: 2px;
    transition: all var(--duration) var(--ease);
}

.navbar.scrolled .navbar__toggle span {
    background: var(--clr-dark);
}

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

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

.hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    from {
        transform: scale(1.05);
    }

    to {
        transform: scale(1.12);
    }
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(17, 20, 25, 0.85) 0%,
            rgba(14, 124, 107, 0.45) 50%,
            rgba(17, 20, 25, 0.75) 100%);
}

.hero__content {
    position: relative;
    z-index: 2;
    padding-top: 120px;
    padding-bottom: 80px;
}

.hero__badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--clr-accent-light);
    letter-spacing: 1px;
    margin-bottom: 28px;
    animation: fadeUp 0.8s var(--ease) both;
}

.hero__title {
    font-family: var(--ff-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--clr-white);
    margin-bottom: 24px;
    animation: fadeUp 0.8s var(--ease) 0.1s both;
}

.hero__accent {
    background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    max-width: 560px;
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 36px;
    animation: fadeUp 0.8s var(--ease) 0.2s both;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 64px;
    animation: fadeUp 0.8s var(--ease) 0.3s both;
}

.hero__stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
    animation: fadeUp 0.8s var(--ease) 0.4s both;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat__number {
    font-family: var(--ff-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--clr-white);
    line-height: 1;
}

.stat__plus,
.stat__percent {
    font-family: var(--ff-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--clr-accent);
}

.stat__label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 4px;
}

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 2;
}

.hero__scroll span {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero__scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(255, 255, 255, 0.4);
    border-bottom: 2px solid rgba(255, 255, 255, 0.4);
    transform: rotate(45deg);
    animation: scrollBounce 2s var(--ease) infinite;
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: rotate(45deg) translateY(0);
    }

    50% {
        transform: rotate(45deg) translateY(8px);
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
    padding: 120px 0;
    background: var(--clr-white);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    padding: 36px;
    border-radius: var(--radius);
    background: var(--clr-white);
    border: 1px solid var(--clr-gray-100);
    transition: all var(--duration) var(--ease);
    position: relative;
    overflow: hidden;
}

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

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
    border-color: transparent;
}

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

.service-card--featured {
    grid-row: span 2;
    background: var(--gradient-dark);
    border-color: transparent;
    padding: 48px;
}

.service-card--featured .service-card__title {
    color: var(--clr-white);
}

.service-card--featured .service-card__text {
    color: rgba(255, 255, 255, 0.7);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(14, 124, 107, 0.08);
    color: var(--clr-primary);
    margin-bottom: 20px;
}

.service-card--featured .service-card__icon {
    background: rgba(232, 165, 75, 0.15);
    color: var(--clr-accent);
}

.service-card__icon svg {
    width: 28px;
    height: 28px;
}

.service-card__title {
    font-family: var(--ff-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--clr-dark);
    margin-bottom: 12px;
}

.service-card__text {
    font-size: 0.95rem;
    color: var(--clr-gray-500);
    line-height: 1.7;
}

.service-card__features {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-card__features li {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    padding-left: 20px;
    position: relative;
}

.service-card__features li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--clr-accent);
    font-size: 0.5rem;
    top: 6px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
    padding: 120px 0;
    background: var(--clr-gray-100);
}

.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about__image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.12);
}

.about__image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.about__image-badge {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: var(--gradient-brand);
    color: var(--clr-white);
    padding: 16px 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: 0 8px 32px rgba(14, 124, 107, 0.4);
}

.about__badge-number {
    display: block;
    font-family: var(--ff-heading);
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
}

.about__badge-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.9;
}

.about__text {
    font-size: 1.05rem;
    color: var(--clr-gray-700);
    line-height: 1.8;
    margin-bottom: 32px;
}

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

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

.highlight__icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(14, 124, 107, 0.1);
    color: var(--clr-primary);
    font-size: 0.9rem;
    font-weight: 700;
}

.highlight strong {
    display: block;
    font-size: 0.95rem;
    color: var(--clr-dark);
    margin-bottom: 2px;
}

.highlight p {
    font-size: 0.85rem;
    color: var(--clr-gray-500);
    line-height: 1.5;
}

/* --- Image Comparison Labels --- */
.compare-container {
    position: relative;
    overflow: hidden;
}

.compare-label {
    position: absolute;
    top: 24px;
    padding: 8px 18px;
    background: rgba(17, 20, 25, 0.7);
    backdrop-filter: blur(10px);
    color: var(--clr-white);
    font-family: var(--ff-body);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 4px;
    z-index: 10;
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform var(--duration) var(--ease);
}

.compare-label--before {
    left: 24px;
}

.compare-label--after {
    right: 24px;
    background: rgba(14, 124, 107, 0.8);
    border-color: rgba(18, 166, 142, 0.3);
}

.compare-container:hover .compare-label {
    transform: translateY(-2px);
}

/* ============================================================
   BENEFITS
   ============================================================ */
.benefits {
    padding: 120px 0;
    background: var(--clr-dark);
}

.benefits .section-title {
    color: var(--clr-white);
}

.benefits__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.benefit-card {
    padding: 40px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all var(--duration) var(--ease);
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
    border-color: rgba(14, 124, 107, 0.3);
}

.benefit-card__number {
    font-family: var(--ff-heading);
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.benefit-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--clr-white);
    margin-bottom: 10px;
}

.benefit-card p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
}

/* ============================================================
   PORTFOLIO
   ============================================================ */
.portfolio {
    padding: 120px 0;
    background: var(--clr-white);
}

.portfolio__showcase {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    grid-template-rows: auto auto;
    gap: 24px;
}

.portfolio__item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}

.portfolio__item--large {
    grid-row: span 2;
}

.portfolio__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

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

.portfolio__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(17, 20, 25, 0.9) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
    transition: all var(--duration) var(--ease);
}

.portfolio__tag {
    display: inline-block;
    background: var(--gradient-brand);
    color: var(--clr-white);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 12px;
    border-radius: 50px;
    width: fit-content;
    margin-bottom: 12px;
}

.portfolio__overlay h3 {
    font-family: var(--ff-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--clr-white);
    margin-bottom: 6px;
}

.portfolio__overlay p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.65);
    max-width: 400px;
}

/* ============================================================
   MATERIALS
   ============================================================ */
.materials {
    padding: 100px 0;
    background: var(--clr-gray-100);
}

.materials__logos {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.material-logo {
    padding: 32px 48px;
    background: var(--clr-white);
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all var(--duration) var(--ease);
    min-width: 180px;
}

.material-logo:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
    border-color: var(--clr-primary);
}

.material-logo__name {
    font-family: var(--ff-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--clr-dark);
    margin-bottom: 4px;
}

.material-logo__desc {
    font-size: 0.8rem;
    color: var(--clr-gray-500);
}

/* ============================================================
   ZONE
   ============================================================ */
.zone {
    position: relative;
    padding: 140px 0;
    overflow: hidden;
}

.zone__bg {
    position: absolute;
    inset: 0;
}

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

.zone__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(17, 20, 25, 0.88) 0%,
            rgba(14, 124, 107, 0.55) 100%);
}

.zone__content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.zone__text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 32px;
}

.zone__areas {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.zone__tag {
    display: inline-block;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--clr-white);
    font-weight: 500;
    transition: all var(--duration) var(--ease);
}

.zone__tag:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ============================================================
   CTA
   ============================================================ */
.cta {
    padding: 100px 0;
    background: var(--clr-white);
}

.cta__inner {
    text-align: center;
    padding: 80px 48px;
    background: var(--gradient-dark);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.cta__inner::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(14, 124, 107, 0.3), transparent);
    border-radius: 50%;
}

.cta__inner::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(232, 165, 75, 0.2), transparent);
    border-radius: 50%;
}

.cta__title {
    font-family: var(--ff-heading);
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--clr-white);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cta__text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 36px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

.cta .btn {
    position: relative;
    z-index: 1;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
    padding: 120px 0;
    background: var(--clr-gray-100);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: flex-start;
}

.contact-form {
    background: var(--clr-white);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--ff-body);
    font-size: 0.95rem;
    color: var(--clr-dark);
    background: var(--clr-gray-100);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    transition: all var(--duration) var(--ease);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--clr-primary);
    background: var(--clr-white);
    box-shadow: 0 0 0 4px rgba(14, 124, 107, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--clr-gray-300);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact__info-card {
    padding: 32px;
    background: var(--gradient-dark);
    border-radius: var(--radius);
    color: var(--clr-white);
}

.contact__info-card h3 {
    font-family: var(--ff-heading);
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.contact__info-sub {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

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

.contact__detail-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--clr-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.contact__detail strong {
    display: block;
    font-size: 0.9rem;
    color: var(--clr-dark);
    margin-bottom: 2px;
}

.contact__detail p {
    font-size: 0.85rem;
    color: var(--clr-gray-500);
    line-height: 1.5;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--clr-dark);
    padding-top: 80px;
}

.footer__inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__brand .brand__icon {
    color: var(--clr-accent);
    font-size: 1.2rem;
}

.footer__brand .brand__text {
    font-family: var(--ff-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--clr-white);
}

.footer__brand p {
    margin-top: 12px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.6;
}

.footer__links h4 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--clr-white);
    margin-bottom: 16px;
}

.footer__links a {
    display: block;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.45);
    padding: 6px 0;
    transition: color var(--duration) var(--ease);
}

.footer__links a:hover {
    color: var(--clr-accent);
}

.footer__bottom {
    padding: 24px 0;
}

.footer__bottom p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.3);
    text-align: center;
}

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

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

    .service-card--featured {
        grid-row: auto;
    }

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

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

    .portfolio__item--large {
        grid-row: auto;
    }

    .portfolio__item img {
        aspect-ratio: 16/9;
    }

    .about__inner {
        gap: 48px;
    }

    .contact__grid {
        gap: 40px;
    }
}

/* ---------- Mobile (768px) ---------- */
@media (max-width: 768px) {

    /* -- Global spacing -- */
    .container {
        padding: 0 20px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    /* -- Navbar mobile menu -- */
    .navbar {
        padding: 16px 0;
    }

    .navbar.scrolled {
        padding: 10px 0;
    }

    .navbar__links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 340px;
        height: 100vh;
        height: 100dvh;
        background: linear-gradient(180deg, var(--clr-dark) 0%, var(--clr-dark-2) 100%);
        flex-direction: column;
        padding: 100px 36px 60px;
        gap: 8px;
        transition: right 0.4s var(--ease);
        box-shadow: -12px 0 48px rgba(0, 0, 0, 0.5);
        z-index: 999;
        overflow-y: auto;
    }

    .navbar__links.active {
        right: 0;
    }

    .navbar__links a:not(.btn) {
        color: rgba(255, 255, 255, 0.85) !important;
        font-size: 1.15rem;
        font-weight: 500;
        padding: 14px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        display: block;
        width: 100%;
    }

    .navbar__links a:not(.btn)::after {
        display: none;
    }

    .navbar__links .btn--nav {
        margin-top: 20px;
        width: 100%;
        text-align: center;
        padding: 16px 24px;
        font-size: 1rem;
    }

    .navbar__toggle {
        display: flex;
        z-index: 1001;
    }

    /* Hamburger → X animation */
    .navbar__toggle.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .navbar__toggle.open span:nth-child(2) {
        opacity: 0;
    }

    .navbar__toggle.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Mobile overlay behind menu */
    .navbar__links::before {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s var(--ease);
        z-index: -1;
    }

    .navbar__links.active::before {
        opacity: 1;
    }

    /* -- Hero mobile -- */
    .hero {
        min-height: 100vh;
        min-height: 100dvh;
        align-items: flex-end;
    }

    .hero__content {
        padding-top: 100px;
        padding-bottom: 100px;
    }

    .hero__badge {
        font-size: 0.75rem;
        padding: 6px 16px;
        margin-bottom: 20px;
    }

    .hero__title {
        font-size: clamp(2rem, 8vw, 3rem);
        margin-bottom: 16px;
    }

    .hero__title br {
        display: none;
    }

    .hero__subtitle {
        font-size: 1rem;
        margin-bottom: 28px;
        line-height: 1.7;
    }

    .hero__actions {
        margin-bottom: 40px;
    }

    .hero__overlay {
        background: linear-gradient(180deg,
                rgba(17, 20, 25, 0.3) 0%,
                rgba(17, 20, 25, 0.85) 50%,
                rgba(17, 20, 25, 0.95) 100%);
    }

    /* Stats as horizontal scroll cards */
    .hero__stats {
        display: flex;
        gap: 12px;
        flex-wrap: nowrap;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 8px;
        margin: 0 -20px;
        padding-left: 20px;
        padding-right: 20px;
    }

    .hero__stats::-webkit-scrollbar {
        display: none;
    }

    .stat {
        flex: 0 0 auto;
        min-width: 140px;
        background: rgba(255, 255, 255, 0.08);
        backdrop-filter: blur(12px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 16px;
        padding: 16px 20px;
        scroll-snap-align: start;
        flex-direction: column;
    }

    .stat__number {
        font-size: 2.2rem;
    }

    .stat__plus,
    .stat__percent {
        font-size: 1.4rem;
    }

    .stat__label {
        font-size: 0.75rem;
    }

    .hero__scroll {
        display: none;
    }

    /* -- Services mobile -- */
    .services {
        padding: 80px 0;
    }

    .services__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .service-card {
        padding: 28px;
    }

    .service-card--featured {
        padding: 32px;
    }

    /* Accent bar on left for mobile */
    .service-card::before {
        width: 4px;
        height: 100%;
        right: auto;
        bottom: 0;
    }

    .service-card__icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
    }

    .service-card__icon svg {
        width: 24px;
        height: 24px;
    }

    /* -- About mobile -- */
    .about {
        padding: 80px 0;
    }

    .about__inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .about__image {
        border-radius: var(--radius);
    }

    .about__image img {
        aspect-ratio: 16/10;
    }

    .about__image-badge {
        bottom: 16px;
        right: 16px;
        padding: 12px 18px;
    }

    .about__badge-number {
        font-size: 1.4rem;
    }

    .about__text {
        font-size: 0.95rem;
        margin-bottom: 24px;
    }

    .highlight {
        gap: 12px;
    }

    .highlight__icon {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
        border-radius: 6px;
    }

    .highlight strong {
        font-size: 0.9rem;
    }

    .highlight p {
        font-size: 0.8rem;
    }

    /* -- Benefits mobile -- */
    .benefits {
        padding: 80px 0;
    }

    .benefits__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .benefit-card {
        padding: 28px;
    }

    .benefit-card__number {
        font-size: 2.2rem;
        margin-bottom: 10px;
    }

    .benefit-card h3 {
        font-size: 1.05rem;
    }

    .benefit-card p {
        font-size: 0.9rem;
    }

    /* -- Portfolio mobile -- */
    .portfolio {
        padding: 80px 0;
    }

    .portfolio__showcase {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .portfolio__item--large {
        grid-row: auto;
    }

    .portfolio__item img {
        aspect-ratio: 4/3;
    }

    .portfolio__overlay {
        padding: 20px;
    }

    .portfolio__overlay h3 {
        font-size: 1.15rem;
    }

    .portfolio__overlay p {
        font-size: 0.82rem;
    }

    .portfolio__tag {
        font-size: 0.7rem;
        padding: 3px 10px;
        margin-bottom: 8px;
    }

    /* -- Materials mobile -- */
    .materials {
        padding: 60px 0;
    }

    .materials__logos {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .material-logo {
        min-width: unset;
        padding: 20px 16px;
    }

    .material-logo__name {
        font-size: 1.2rem;
    }

    .material-logo__desc {
        font-size: 0.72rem;
    }

    /* 5th logo centered on its own row */
    .material-logo:last-child {
        grid-column: 1 / -1;
        max-width: 200px;
        margin: 0 auto;
    }

    /* -- Zone mobile -- */
    .zone {
        padding: 80px 0;
    }

    .zone__text {
        font-size: 0.95rem;
    }

    .zone__areas {
        gap: 8px;
    }

    .zone__tag {
        padding: 8px 16px;
        font-size: 0.82rem;
    }

    /* -- CTA mobile -- */
    .cta {
        padding: 60px 0;
    }

    .cta__inner {
        padding: 48px 24px;
        border-radius: var(--radius);
    }

    .cta__title {
        font-size: 1.5rem;
    }

    .cta__text {
        font-size: 0.95rem;
        margin-bottom: 28px;
    }

    /* -- Contact mobile -- */
    .contact {
        padding: 80px 0;
    }

    .contact__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-form {
        padding: 28px;
        border-radius: var(--radius);
    }

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

    /* Touch-friendly inputs */
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 16px;
        font-size: 1rem;
        border-radius: 12px;
    }

    .form-group label {
        font-size: 0.82rem;
        margin-bottom: 8px;
    }

    .form-group {
        margin-bottom: 16px;
    }

    .contact__info-card {
        padding: 24px;
        border-radius: var(--radius);
        text-align: center;
    }

    .contact__info-card h3 {
        font-size: 1.5rem;
    }

    .contact__detail-icon {
        width: 44px;
        height: 44px;
        border-radius: 10px;
    }

    /* -- Footer mobile -- */
    .footer {
        padding-top: 48px;
    }

    .footer__inner {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer__brand {
        grid-column: 1 / -1;
        text-align: center;
    }

    .footer__links h4 {
        font-size: 0.8rem;
        margin-bottom: 12px;
    }

    .footer__links a {
        font-size: 0.85rem;
        padding: 5px 0;
    }

    .footer__bottom {
        padding: 20px 0;
    }

    .footer__bottom p {
        font-size: 0.72rem;
    }
}

/* ---------- Small mobile (480px) ---------- */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero__title {
        font-size: clamp(1.8rem, 9vw, 2.5rem);
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
    }

    .stat {
        min-width: 120px;
        padding: 14px 16px;
    }

    .stat__number {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }

    .section-desc {
        font-size: 0.95rem;
    }

    .section-tag {
        font-size: 0.72rem;
        letter-spacing: 2px;
    }

    .service-card {
        padding: 24px;
    }

    .service-card__title {
        font-size: 1.1rem;
    }

    .service-card__text {
        font-size: 0.88rem;
    }

    .benefit-card {
        padding: 24px;
    }

    .portfolio__overlay {
        padding: 16px;
    }

    .portfolio__overlay h3 {
        font-size: 1rem;
    }

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

    .zone__tag {
        padding: 8px 14px;
        font-size: 0.78rem;
    }

    .cta__inner {
        padding: 40px 20px;
    }

    .cta__title {
        font-size: 1.3rem;
    }

    .contact-form {
        padding: 24px 20px;
    }

    .footer__inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer__brand {
        text-align: left;
    }
}

/* ---------- Extra small (360px) ---------- */
@media (max-width: 360px) {
    .hero__title {
        font-size: 1.6rem;
    }

    .hero__badge {
        font-size: 0.68rem;
        padding: 5px 12px;
    }

    .hero__subtitle {
        font-size: 0.9rem;
    }

    .stat {
        min-width: 100px;
        padding: 12px 14px;
    }

    .stat__number {
        font-size: 1.5rem;
    }

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

    .material-logo:last-child {
        max-width: none;
    }
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.7s var(--ease);
}

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

/* Stagger animation delay for grid children on mobile */
@media (max-width: 768px) {
    .reveal {
        transform: translateY(24px);
    }

    .services__grid .reveal:nth-child(2) {
        transition-delay: 0.08s;
    }

    .services__grid .reveal:nth-child(3) {
        transition-delay: 0.16s;
    }

    .benefits__grid .reveal:nth-child(2) {
        transition-delay: 0.08s;
    }

    .benefits__grid .reveal:nth-child(3) {
        transition-delay: 0.16s;
    }
}

/* ============================================================
   TOUCH ENHANCEMENTS
   ============================================================ */
@media (hover: none) and (pointer: coarse) {

    /* Remove hover-only effects on touch devices */
    .service-card:hover {
        transform: none;
        box-shadow: none;
    }

    .benefit-card:hover {
        transform: none;
    }

    .material-logo:hover {
        transform: none;
        box-shadow: none;
    }

    .zone__tag:hover {
        transform: none;
    }

    /* Make service cards always show the accent bar */
    .service-card::before {
        opacity: 1;
    }

    /* Larger tap targets */
    .navbar__links a:not(.btn) {
        min-height: 48px;
        display: flex;
        align-items: center;
    }

    /* Portfolio overlay always visible on touch */
    .portfolio__overlay {
        background: linear-gradient(to top, rgba(17, 20, 25, 0.85) 0%, transparent 70%);
    }
}