/* ================================================
   S7PARIS — style.css
   Premium "Paris Luxury" Aesthetic
   Midnight Black, Charcoal, Champagne Gold
   ================================================ */

/* ---- CSS VARIABLES ---- */
:root {
    --paris-dark: #0F0F0F;
    /* Deep Midnight Black */
    --paris-charcoal: #1C1C1C;
    /* Elegant Dark Grey */
    --gold: #D4C4A8;
    /* Champagne / Beige Gold */
    --gold-dark: #B9A588;
    /* Muted Gold */
    --gold-light: #EBE0CD;
    /* Soft Cream */
    --white: #FFFFFF;
    --off-white: #F8F8F8;
    --grey: #888888;
    --grey-light: #E0E0E0;
    --text: #333333;
    --text-light: #666666;

    --font-main: 'Montserrat', sans-serif;
    --font-body: 'Poppins', sans-serif;

    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.25);

    --radius: 8px;
    /* Slightly sharper for a modern look */
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --max-w: 1200px;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text);
    background: var(--white);
    overflow-x: hidden;
    line-height: 1.8;
}

img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

ul {
    list-style: none;
}

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

input,
textarea,
select {
    font-family: var(--font-body);
    font-size: 0.95rem;
    width: 100%;
    border: 1px solid var(--grey-light);
    border-radius: 0;
    /* Sharp look */
    padding: 1rem;
    outline: none;
    transition: all var(--transition);
    background: var(--white);
    color: var(--text);
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--gold);
    box-shadow: 0 4px 12px rgba(212, 196, 168, 0.15);
}

/* ---- UTILITY ---- */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 8rem 0;
}

.gold {
    color: var(--gold);
}

.section-label {
    font-family: var(--font-main);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1rem;
    text-align: center;
}

.section-title {
    font-family: var(--font-main);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--paris-dark);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    border-radius: 0;
    /* Sharp for luxury look */
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--gold);
    color: var(--paris-dark);
}

.btn-primary:hover {
    background: var(--gold-dark);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(212, 196, 168, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--paris-dark);
    border-color: var(--white);
    transform: translateY(-3px);
}

/* ---- SCROLL ANIMATION ---- */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================
   NAVBAR
   ================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: var(--paris-dark);
    padding: 1rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-main);
    color: var(--white);
    font-weight: 900;
    font-size: 1.4rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.7);
    font-family: var(--font-main);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

/* Lang switcher */
.lang-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    font-family: var(--font-main);
    font-size: 0.7rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.3s;
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--gold);
}

.lang-sep {
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.7rem;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
}

.hamburger span {
    width: 28px;
    height: 1px;
    background: var(--white);
    transition: 0.3s;
}

/* ================================================
   HERO
   ================================================ */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('images/s7paris_luxury_hero.png') center center / cover no-repeat;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(15, 15, 15, 0.95), rgba(15, 15, 15, 0.4));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 1.5rem;
}

.hero-tagline {
    font-family: var(--font-main);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 2rem;
    animation: fadeInDown 1s ease both;
}

.hero-title {
    font-family: var(--font-main);
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: -2px;
    animation: fadeInUp 1s ease both 0.3s;
}

.hero-sub {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease both 0.6s;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeInUp 1s ease both 0.9s;
}

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

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

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

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

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.about-image {
    position: relative;
    height: 600px;
}

.about-image img {
    filter: grayscale(100%) brightness(0.9);
    transition: filter 0.5s ease;
}

.about-image:hover img {
    filter: grayscale(0%) brightness(1);
}

.about-badge {
    position: absolute;
    top: 50%;
    left: -3rem;
    transform: translateY(-50%) rotate(-90deg);
    background: var(--gold);
    color: var(--paris-dark);
    padding: 1rem 3rem;
    font-family: var(--font-main);
    font-weight: 900;
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    white-space: nowrap;
}

.about-content h2 {
    margin-bottom: 2rem;
}

.about-desc {
    margin-bottom: 3rem;
    font-size: 1.1rem;
    color: var(--text-light);
}

/* ================================================
   SERVICES
   ================================================ */
.services {
    background: var(--off-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 4rem 3rem;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
}

.service-card:hover {
    background: var(--paris-dark);
    border-bottom-color: var(--gold);
    transform: translateY(-10px);
}

.service-card:hover h3 {
    color: var(--white);
}

.service-card:hover p {
    color: rgba(255, 255, 255, 0.5);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    display: block;
}

.service-card h3 {
    font-family: var(--font-main);
    font-size: 1.25rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* ================================================
   PROJECTS
   ================================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.project-card {
    position: relative;
    height: 500px;
    overflow: hidden;
    cursor: pointer;
}

.project-card img {
    transition: transform 1s ease;
    filter: grayscale(20%);
}

.project-card:hover img {
    transform: scale(1.1);
    filter: grayscale(0%);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 15, 15, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.5s ease;
    text-align: center;
    padding: 2rem;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-name {
    color: var(--white);
    font-family: var(--font-main);
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.project-category {
    color: var(--gold);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 4px;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
    background: var(--paris-dark);
    color: var(--white);
    padding: 6rem 0 3rem;
}

.footer-logo {
    font-family: var(--font-main);
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 5px;
    margin-bottom: 2rem;
    display: block;
}

.footer-copy {
    margin-top: 4rem;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ================================================
   GRID STRUCTURES
   ================================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    gap: 2rem;
    color: var(--gold);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.cookie-content {
    max-width: var(--max-w);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 900px) {

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 300px;
        background: var(--paris-dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.4s ease;
        z-index: 1000;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.5);
    }

    .nav-links.open {
        right: 0;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
        position: relative;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .about-grid,
    .services-grid,
    .projects-grid,
    .stats-grid,
    .testimonials-grid,
    .contact-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-title {
        font-size: clamp(2.5rem, 8vw, 3.5rem);
    }

    .about-image {
        height: 400px;
        margin-bottom: 2rem;
    }

    .about-badge {
        left: 0;
        transform: none;
        rotate: 0;
        top: auto;
        bottom: 0;
        width: 100%;
        text-align: center;
    }

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

    .cookie-buttons {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* ================================================
   BACK TO TOP
   ================================================ */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    background: var(--gold);
    color: var(--paris-dark);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    background: var(--white);
    color: var(--paris-dark);
    transform: translateY(-5px);
}