/* DKR V4 - Responsive, Beautiful Nav, Fixed Logo */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;700;900&display=swap');

:root {
    --color-bg: #0b0b0b;
    --color-surface: #141414;
    --color-accent: #00B4A7;
    /* DKR Teal */
    --color-text: #ffffff;
    --color-text-muted: #888888;

    --font-heading: 'Montserrat', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-heading);
    overflow-x: hidden;
    line-height: 1.6;
}

/* --- Navigation --- */
nav {
    position: fixed;
    top: 20px;
    /* Floating pill effect */
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(20, 20, 20, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

nav.scrolled {
    top: 0;
    width: 100%;
    max-width: 100%;
    border-radius: 0;
    padding: 1rem 5%;
    background: rgba(5, 5, 5, 0.95);
    border-top: none;
    border-left: none;
    border-right: none;
}

.logo img {
    height: 40px;
    width: auto;
    display: block;
    transition: transform 0.3s;
}

nav.scrolled .logo img {
    transform: scale(0.9);
}

/* Desktop Links */
.nav-links {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s;
    text-decoration: none;
}

.nav-link:hover {
    color: #fff;
}

.btn-contact {
    padding: 0.7rem 1.8rem;
    background: rgba(37, 211, 102, 0.1);
    /* WhatsApp Green Tint */
    border: 1px solid #25D366;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #25D366;
    transition: var(--transition);
    text-decoration: none;
}

.btn-contact:hover {
    background: #25D366;
    border-color: #25D366;
    color: #000;
    box-shadow: 0 0 20px rgba(37, 211, 102, 0.4);
}


/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: white;
    padding: 0.5rem;
}

/* Mobile Nav Overlay */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: #000;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    transform: translateY(-100%);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu a {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -1px;
    text-transform: uppercase;
    color: #fff;
    opacity: 0;
    transform: translateY(20px);
    transition: 0.5s;
    text-decoration: none;
}

.mobile-menu.active a {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.2s;
}

.mobile-menu a:nth-child(2) {
    transition-delay: 0.3s;
}

.mobile-menu a:nth-child(3) {
    transition-delay: 0.4s;
}

.mobile-menu a:nth-child(4) {
    transition-delay: 0.5s;
}

.close-menu {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 2rem;
    cursor: pointer;
    color: #666;
    transition: 0.3s;
}

.close-menu:hover {
    color: #fff;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 60px;
}

.hero-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}

.hero-overlay {
    z-index: 2;
    text-align: center;
    padding: 0 1rem;
    perspective: 1000px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1.1;
    text-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.hero-title span {
    display: block;
    opacity: 0;
    filter: blur(12px);
    transform: translateY(30px);
    animation: revealCinematic 1s cubic-bezier(0.2, 1, 0.3, 1) forwards;
}

.hero-title span:nth-child(1) {
    animation-delay: 0.3s;
}

.hero-title span:nth-child(2) {
    animation-delay: 0.7s;
    color: var(--color-accent);
}

.hero-title span:nth-child(3) {
    animation-delay: 1.1s;
}

@keyframes revealCinematic {
    to {
        opacity: 1;
        filter: blur(0);
        transform: translateY(0);
    }
}

/* --- Tech Section --- */
.tech-container {
    display: flex;
    position: relative;
}

.tech-visual {
    width: 50%;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow: hidden;
}

.tech-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.5s ease;
}

.tech-content {
    width: 50%;
    background: rgba(11, 11, 11, 0.5);
}

.tech-step {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 4rem;
    opacity: 0.2;
    transition: opacity 0.5s;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-step.active {
    opacity: 1;
}

.tech-step h2 {
    font-size: 3rem;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.tech-step p {
    font-size: 1.2rem;
    color: var(--color-text-muted);
}

/* --- Collection Carousel (Image Only) --- */
.collection {
    padding: 5rem 0;
    /* Full width */
    background: #000;
}

.section-header {
    padding: 0 5%;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: 1px solid #333;
    padding-bottom: 1rem;
}

.image-carousel {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding: 0 5% 2rem 5%;
    scrollbar-width: none;
    -ms-overflow-style: none;
    cursor: grab;
}

.image-carousel::-webkit-scrollbar {
    display: none;
}

.carousel-item {
    min-width: 320px;
    height: 450px;
    flex-shrink: 0;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    border: 1px solid #222;
    transition: var(--transition);
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
    filter: grayscale(0.2);
}

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

.carousel-item:hover img {
    transform: scale(1.05);
    filter: grayscale(0);
}

/* --- Service Options Section --- */
.service-options {
    padding: 5rem 5%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: #0b0b0b;
}

.option-card {
    position: relative;
    height: 400px;
    border: 1px solid #333;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2.5rem;
    transition: var(--transition);
    background: #111;
}

.option-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.option-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: auto;
    /* Pushes content down */
    opacity: 0.8;
}

.option-title {
    font-size: 2rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    color: #fff;
    z-index: 2;
}

.option-desc {
    color: #aaa;
    margin-bottom: 2rem;
    font-size: 1rem;
    max-width: 400px;
    z-index: 2;
}

.option-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
    text-transform: uppercase;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: gap 0.3s;
}

.option-link:hover {
    gap: 1rem;
    color: var(--color-accent);
}

/* Background Gradients */
.option-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(45deg, rgba(0, 0, 0, 0.8), transparent);
    z-index: 1;
}

/* --- Footer --- */
footer {
    padding: 5rem 5%;
    border-top: 1px solid #222;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.socials {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.socials a {
    color: #888;
    transition: 0.3s;
}

.socials a:hover {
    color: var(--color-accent);
    transform: translateY(-3px);
}

/* --- Responsive Breakpoints --- */
@media (max-width: 900px) {
    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 3rem;
    }

    .tech-container {
        flex-direction: column;
    }

    .tech-visual {
        position: relative;
        width: 100%;
        height: 50vh;
        z-index: 10;
    }

    .tech-content {
        width: 100%;
    }

    .tech-step {
        min-height: 50vh;
        padding: 3rem 1.5rem;
        border-left: none;
        text-align: center;
    }

    .image-carousel {
        padding-bottom: 1rem;
    }

    .carousel-item {
        min-width: 260px;
        height: 350px;
    }

    /* Service Options Responsive */
    .service-options {
        grid-template-columns: 1fr;
    }

    .option-card {
        height: 300px;
    }

    footer {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .socials {
        justify-content: center;
    }

    footer div:last-child {
        text-align: center;
        margin-top: 2rem;
    }
}