--shadow-sm:  2px 8px rgba(,,, .1);
    --shadow-md:  8px 30px rgba(,,, .12);
    --shadow-lg:  20px 60px rgba(,,, .15);/* ============================================
   ZelPet Graviranje - Premium Static Website
   Inspired by ironmarkdesigns.com
   ============================================ */

/* ---------- CSS VARIABLES ---------- */
:root {
    --color-black: #111111;
    --color-dark: #111111;
    --color-dark-2: #1a1a1a;
    --color-dark-3: #222222;
    --color-gray-1: #333333;
    --color-gray-2: #555555;
    --color-gray-3: #888888;
    --color-gray-4: #aaaaaa;
    --color-light: #f5f5f5;
    --color-white: #ffffff;
    --color-accent: #c9a84c;
    --color-accent-dark: #b8942e;
    --color-accent-light: #d4b65a;

    --font-primary: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'DM Serif Text', Georgia, serif;

    --transition: .3s cubic-bezier(.25, .46, .45, .94);
    --transition-slow: .5s cubic-bezier(.25, .46, .45, .94);
    --shadow-sm:  2px 8px rgba(0,0,0, .1);
    --shadow-md:  8px 30px rgba(0,0,0, .12);
    --shadow-lg:  20px 60px rgba(0,0,0, .15);
    --shadow-gold:  4px 20px rgba(201, 168, 76, .3);
    --radius: 12px;
    --radius-lg: 20px;
    --max-width: 1200px;
    --header-height: 80px;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-3);
    background-color: var(--color-black);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul { list-style: none; }

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

.section {
    padding: 100px ;
    position: relative;
}

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--color-white);
    line-height: 1.2;
    font-weight: 600;
}

.text-accent {
    color: var(--color-accent);
}

.section__header {
    text-align: center;
    margin-bottom: 60px;
}

.section__tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
    position: relative;
}

.section__tag::before,
.section__tag::after {
    content: '';
    display: inline-block;
    width: 30px;
    height: 1px;
    background: var(--color-accent);
    vertical-align: middle;
    margin:  12px;
}

.section__title {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 700;
    margin-bottom: 16px;
}

.section__divider {
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin:  auto 20px;
    border-radius: 2px;
}

.section__desc {
    max-width: 600px;
    margin:  auto;
    color: var(--color-gray-3);
    font-size: 17px;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-family: var(--font-primary);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .5px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-black);
}

.btn--primary:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

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

.btn--outline:hover {
    background: var(--color-white);
    color: var(--color-black);
    transform: translateY(-2px);
}

.btn--full {
    width: 100%;
    justify-content: center;
}

/* ---------- HEADER / NAV ---------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding:  24px;
    transition: background .5s ease, box-shadow .5s ease, backdrop-filter .5s ease;
    background: transparent;
    height: var(--header-height);
}

.header.scrolled {
    background: rgba(200, 202, 208, .88);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 1px 4px rgba(0,0,0, .08), inset 0 1px 0 rgba(255,255,255, .5);
}

.header.scrolled .logo__text {
    color: var(--color-dark);
}

.header.scrolled .logo__thin {
    color: var(--color-gray-2);
}

.header.scrolled .logo__mark {
    background: var(--color-dark);
    color: var(--color-accent);
}

.header.scrolled .nav__link {
    color: var(--color-gray-1);
}

.header.scrolled .nav__link:hover,
.header.scrolled .nav__link.active {
    color: var(--color-dark);
}

.header.scrolled .hamburger span {
    background: var(--color-dark);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--max-width);
    margin:  auto;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo__mark {
    width: 44px;
    height: 44px;
    background: var(--color-accent);
    color: var(--color-black);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}

.logo__text {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: -.5px;
}

.logo__thin {
    font-weight: 300;
    color: var(--color-gray-3);
}

/* Nav */
.nav__list {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-4);
    letter-spacing: .5px;
    position: relative;
    padding: 4px ;
    transition: var(--transition);
}

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

.nav__link:hover,
.nav__link.active {
    color: var(--color-white);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ---------- HERO ---------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #aaa 0%, #1a1a1a 50%, #aaa 100%);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(201, 168, 76, .08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(201, 168, 76, .05) 0%, transparent 60%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='  60 60' xmlns='http://www.w3.org/200/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm-30Vh-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4Hv2h4v4h2v-4h4v-2H6zM6 4VH4v4Hv2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: .5;
    pointer-events: none;
}

.hero__inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin:  auto;
    padding: 120px  60px;
}

.hero__badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent);
    border: 1px solid rgba(201, 168, 76, .3);
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 32px;
    animation: fadeInUp .8s ease;
}

.hero__title {
    font-size: clamp(40px, 8vw, 80px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 24px;
    animation: fadeInUp .8s ease .1s both;
}

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

.hero__subtitle {
    font-size: 18px;
    color: var(--color-gray-3);
    max-width: 560px;
    margin:  auto 40px;
    line-height: 1.7;
    animation: fadeInUp .8s ease .2s both;
}

.hero__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp .8s ease .3s both;
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 80px;
    animation: fadeInUp .8s ease .4s both;
}

.hero__stat {
    text-align: center;
}

.hero__stat-num {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 8px;
}

.hero__stat-num::after {
    content: '+';
}

.hero__stat-label {
    font-size: 14px;
    color: var(--color-gray-3);
    font-weight: 400;
}

.hero__scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-gray-3);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    %, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ---------- ABOUT ---------- */
.about {
    background: var(--color-dark);
}

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

.about__text {
    font-size: 17px;
    color: var(--color-gray-3);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about__features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.about__feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
    padding: 20px 12px;
    background: var(--color-dark-2);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, .05);
    transition: var(--transition);
}

.about__feature:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.about__feature i {
    font-size: 24px;
    color: var(--color-accent);
}

.about__feature span {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-4);
}

.about__image {
    position: relative;
}

.about__image-frame {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .08);
}

.about__image-frame img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.about__image-frame:hover img {
    transform: scale(1.03);
}

.about__experience {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--color-accent);
    color: var(--color-black);
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow-gold);
}

.about__exp-num {
    font-size: 32px;
    font-weight: 800;
    line-height: 1;
}

.about__exp-text {
    font-size: 11px;
    font-weight: 600;
    line-height: 1.3;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ---------- SERVICES ---------- */
.services {
    background: var(--color-black);
}

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

.service-card {
    background: var(--color-dark-2);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(201, 168, 76, .2);
    box-shadow:  20px 40px rgba(0,0,0, .3);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card--featured {
    border-color: rgba(201, 168, 76, .2);
    background: linear-gradient(180deg, rgba(201, 168, 76, .05) 0%, var(--color-dark-2) 100%);
}

.service-card__icon {
    width: 60px;
    height: 60px;
    background: rgba(201, 168, 76, .1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.service-card__icon i {
    font-size: 26px;
    color: var(--color-accent);
}

.service-card__title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card__desc {
    font-size: 15px;
    color: var(--color-gray-3);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-card__list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-card__list li {
    font-size: 14px;
    color: var(--color-gray-4);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-card__list li i {
    color: var(--color-accent);
    font-size: 12px;
}

.service-card__badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--color-accent);
    color: var(--color-black);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 50px;
}

.services__cta {
    text-align: center;
    margin-top: 60px;
    padding: 48px;
    background: linear-gradient(135deg, rgba(201, 168, 76, .08) 0%, transparent 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(201, 168, 76, .1);
}

.services__cta p {
    font-size: 20px;
    color: var(--color-gray-4);
    margin-bottom: 20px;
}

/* ---------- GALLERY ---------- */
.gallery {
    background: var(--color-dark);
}

.gallery__filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.gallery__filter {
    padding: 10px 24px;
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-4);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.gallery__filter:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.gallery__filter.active {
    background: var(--color-accent);
    color: var(--color-black);
    border-color: var(--color-accent);
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.gallery__item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 1;
}

.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.gallery__item:hover img {
    transform: scale(1.08);
}

.gallery__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0, .9) , transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    opacity: 0;
    transition: var(--transition);
}

.gallery__item:hover .gallery__overlay {
    opacity: 1;
}

.gallery__overlay h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.gallery__overlay p {
    font-size: 13px;
    color: var(--color-accent);
    font-weight: 500;
}

/* ---------- FAQ ---------- */
.faq {
    background: var(--color-black);
}

.faq__grid {
    max-width: 800px;
    margin:  auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq__item {
    background: var(--color-dark-2);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.faq__item:hover {
    border-color: rgba(201, 168, 76, .2);
}

.faq__item.active {
    border-color: rgba(201, 168, 76, .3);
}

.faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 500;
    color: var(--color-white);
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

.faq__question i {
    font-size: 14px;
    color: var(--color-accent);
    transition: var(--transition);
    flex-shrink: 0;
}

.faq__item.active .faq__question i {
    transform: rotate(45deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease, padding .4s ease;
}

.faq__item.active .faq__answer {
    max-height: 300px;
}

.faq__answer p {
    padding:  28px 22px;
    font-size: 15px;
    color: var(--color-gray-3);
    line-height: 1.7;
}

/* ---------- CONTACT ---------- */
.contact {
    background: var(--color-dark);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

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

.contact__card {
    background: var(--color-dark-2);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
}

.contact__card:hover {
    border-color: rgba(201, 168, 76, .2);
    transform: translateY(-4px);
}

.contact__card i {
    font-size: 28px;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.contact__card h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact__card p {
    font-size: 14px;
    color: var(--color-gray-3);
    line-height: 1.6;
}

.contact__card a {
    color: var(--color-gray-3);
}

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

/* Contact Form */
.contact__form {
    background: var(--color-dark-2);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form__group {
    margin-bottom: 16px;
}

.form__group input,
.form__group textarea {
    width: 100%;
    padding: 16px 20px;
    font-family: var(--font-primary);
    font-size: 15px;
    color: var(--color-white);
    background: var(--color-dark-3);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: var(--radius);
    outline: none;
    transition: var(--transition);
}

.form__group input::placeholder,
.form__group textarea::placeholder {
    color: var(--color-gray-2);
}

.form__group input:focus,
.form__group textarea:focus {
    border-color: var(--color-accent);
    box-shadow:    3px rgba(201, 168, 76, .1);
}

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

.form__note {
    font-size: 12px;
    color: var(--color-gray-2);
    margin-top: 12px;
    text-align: center;
}

/* ---------- FOOTER ---------- */
.footer {
    background: var(--color-dark-2);
    border-top: 1px solid rgba(255, 255, 255, .05);
    padding: 80px  ;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.footer__brand p {
    font-size: 14px;
    color: var(--color-gray-3);
    margin: 16px  24px;
    line-height: 1.7;
}

.footer__social {
    display: flex;
    gap: 12px;
}

.footer__social a {
    width: 40px;
    height: 40px;
    background: var(--color-dark-3);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-4);
    font-size: 16px;
    transition: var(--transition);
}

.footer__social a:hover {
    background: var(--color-accent);
    color: var(--color-black);
    border-color: var(--color-accent);
}

.footer__links h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-white);
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__links li a {
    font-size: 14px;
    color: var(--color-gray-3);
}

.footer__links li a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

.footer__newsletter h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-white);
}

.footer__newsletter p {
    font-size: 14px;
    color: var(--color-gray-3);
    margin-bottom: 20px;
}

.footer__form {
    display: flex;
    gap: 0;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 50px;
    overflow: hidden;
    background: var(--color-dark-3);
}

.footer__form input {
    flex: 1;
    padding: 14px 20px;
    font-family: var(--font-primary);
    font-size: 14px;
    color: var(--color-white);
    background: transparent;
    border: none;
    outline: none;
}

.footer__form input::placeholder {
    color: var(--color-gray-2);
}

.footer__form button {
    padding: 14px 20px;
    background: var(--color-accent);
    color: var(--color-black);
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: var(--transition);
}

.footer__form button:hover {
    background: var(--color-accent-dark);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px ;
    gap: 16px;
}

.footer__bottom p {
    font-size: 13px;
    color: var(--color-gray-2);
}

.footer__bottom a {
    color: var(--color-accent);
}

/* ---------- BACK TO TOP ---------- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    color: var(--color-black);
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-gold);
}

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

.back-to-top:hover {
    background: var(--color-accent-dark);
    transform: translateY(-4px);
}

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

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
    .about__grid {
        gap: 48px;
    }

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

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

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

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

@media (max-width: 768px) {
    .section {
        padding: 80px ;
    }

    .header {
        padding:  16px;
    }

    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 10, .98);
        backdrop-filter: blur(24px);
        padding: 100px 32px 32px;
        transition: var(--transition);
        border-left: 1px solid rgba(255, 255, 255, .05);
    }

    .nav.open {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .nav__link {
        font-size: 18px;
    }

    .hero__stats {
        gap: 32px;
        flex-wrap: wrap;
    }

    .hero__stat-num {
        font-size: 32px;
    }

    .hero__scroll {
        display: none;
    }

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

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

    .about__experience {
        width: 100px;
        height: 100px;
        bottom: -16px;
        right: -16px;
    }

    .about__exp-num {
        font-size: 26px;
    }

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

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

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

    .contact__form {
        padding: 28px 20px;
    }

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

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

@media (max-width: 480px) {
    .hero__title {
        font-size: 36px;
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__stats {
        gap: 24px;
    }

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

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

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

    .section__tag::before,
    .section__tag::after {
        width: 20px;
    }
}

/* ---------- SCROLL ANIMATIONS ---------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .8s ease, transform .8s ease;
}

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