/* ===================================
   CSS Custom Properties
   =================================== */
:root {
    --midnight: #0a1628;
    --midnight-light: #132240;
    --midnight-mid: #1a2d4a;
    --mint: #34d399;
    --mint-light: #6ee7b7;
    --mint-dark: #059669;
    --mint-pale: #d1fae5;
    --white: #ffffff;
    --off-white: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;

    --font-display: 'Outfit', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;

    --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.08);
    --shadow-md: 0 4px 20px rgba(10, 22, 40, 0.12);
    --shadow-lg: 0 10px 40px rgba(10, 22, 40, 0.18);
    --shadow-xl: 0 20px 60px rgba(10, 22, 40, 0.22);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--mint);
    color: var(--midnight);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    z-index: 1000;
    font-weight: 600;
}

.skip-link:focus {
    top: 16px;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--midnight);
    line-height: 1.15;
    font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-xl);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--mint);
    color: var(--midnight);
    border-color: var(--mint);
}

.btn-primary:hover {
    background: var(--mint-light);
    border-color: var(--mint-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(52, 211, 153, 0.35);
}

.btn-mint {
    background: var(--mint);
    color: var(--midnight);
    border-color: var(--mint);
}

.btn-mint:hover {
    background: var(--mint-light);
    border-color: var(--mint-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(52, 211, 153, 0.35);
}

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

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

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

/* ===================================
   Section Helpers
   =================================== */
.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--mint-dark);
    background: var(--mint-pale);
    padding: 6px 16px;
    border-radius: var(--radius-xl);
    margin-bottom: 16px;
}

.section-title {
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 560px;
}

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

.section-header .section-subtitle {
    margin: 0 auto;
}

/* ===================================
   Reveal Animations
   =================================== */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Navbar
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 22, 40, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.97);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--white);
}

.logo-icon {
    display: flex;
    align-items: center;
    color: var(--mint);
}

.logo-light {
    color: var(--white);
}

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

.nav-links a:not(.btn) {
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
    position: relative;
}

.nav-links a:not(.btn):hover {
    color: var(--mint);
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--mint);
    transition: var(--transition);
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

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

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

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

/* ===================================
   Hero
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--midnight);
    overflow: hidden;
    padding-top: 72px;
}

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

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 22, 40, 0.92) 0%,
        rgba(10, 22, 40, 0.75) 50%,
        rgba(10, 22, 40, 0.6) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 80px 0;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(52, 211, 153, 0.12);
    border: 1px solid rgba(52, 211, 153, 0.3);
    color: var(--mint);
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: var(--radius-xl);
    margin-bottom: 28px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.4); }
}

.hero-title {
    color: var(--white);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    z-index: 2;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 120px;
}

/* ===================================
   Stats Bar
   =================================== */
.stats-bar {
    background: var(--midnight);
    padding: 0;
    position: relative;
    z-index: 3;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.stat-item {
    text-align: center;
    padding: 48px 24px;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

.stat-item:last-child {
    border-right: none;
}

.stat-item:hover {
    background: var(--midnight-light);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(2rem, 3vw, 2.75rem);
    font-weight: 900;
    color: var(--mint);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.55);
    font-weight: 500;
}

/* ===================================
   Auctions Section
   =================================== */
.auctions {
    background: var(--off-white);
    padding: 100px 0;
}

.auction-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.auction-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.auction-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.card-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.auction-card:hover .card-image img {
    transform: scale(1.06);
}

.card-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 5px 14px;
    border-radius: var(--radius-xl);
}

.card-tag.mint {
    background: var(--mint);
    color: var(--midnight);
}

.card-tag.navy {
    background: var(--midnight);
    color: var(--white);
}

.card-content {
    padding: 28px;
}

.card-content h3 {
    margin-bottom: 10px;
}

.card-content p {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.65;
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--white);
    padding: 100px 0;
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-image-stack {
    position: relative;
}

.about-img-main {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-img-main img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.about-img-accent {
    position: absolute;
    bottom: -40px;
    right: -30px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--white);
}

.about-img-accent img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.about-badge {
    position: absolute;
    top: -20px;
    left: -20px;
    background: var(--midnight);
    color: var(--white);
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
}

.about-badge svg {
    color: var(--mint);
}

.about-content .section-title {
    margin-bottom: 24px;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--gray-500);
    line-height: 1.75;
    margin-bottom: 16px;
}

.about-features {
    margin-top: 32px;
    display: grid;
    gap: 14px;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-700);
}

.about-features svg {
    flex-shrink: 0;
}

/* ===================================
   Services Section
   =================================== */
.services {
    background: var(--midnight);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.services-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.services-content .section-tag {
    background: rgba(52, 211, 153, 0.15);
    color: var(--mint);
}

.services-content .section-title {
    color: var(--white);
    margin-bottom: 40px;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.step {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: var(--transition);
}

.step:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(52, 211, 153, 0.3);
    transform: translateY(-4px);
}

.step-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--mint);
    opacity: 0.4;
    line-height: 1;
    margin-bottom: 12px;
}

.step h4 {
    color: var(--white);
    margin-bottom: 8px;
}

.step p {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.6;
}

.services-visual {
    position: relative;
}

.services-img {
    border-radius: var(--radius-lg);
    width: 100%;
    height: 560px;
    object-fit: cover;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 1;
}

.big-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.6;
}

.mint-shape {
    width: 200px;
    height: 200px;
    background: var(--mint);
    top: -40px;
    right: -40px;
    z-index: 0;
    filter: blur(60px);
}

.navy-shape {
    width: 160px;
    height: 160px;
    background: var(--mint-dark);
    bottom: -20px;
    left: -20px;
    z-index: 0;
    filter: blur(50px);
}

/* ===================================
   Testimonial
   =================================== */
.testimonial {
    background: var(--mint-pale);
    padding: 80px 0;
}

.testimonial-card {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.testimonial-quote-mark {
    font-family: var(--font-display);
    font-size: 6rem;
    font-weight: 900;
    color: var(--mint);
    line-height: 1;
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.3;
}

.testimonial-text {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--midnight);
    line-height: 1.7;
    font-weight: 500;
    margin-bottom: 32px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--midnight);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mint);
}

.author-name {
    display: block;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--midnight);
}

.author-location {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: var(--off-white);
    padding: 100px 0;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info .section-title {
    margin-bottom: 16px;
}

.contact-desc {
    font-size: 1.0625rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 40px;
}

.contact-details {
    display: grid;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.contact-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.contact-icon {
    width: 52px;
    height: 52px;
    background: var(--mint-pale);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mint-dark);
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.contact-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--midnight);
    line-height: 1.4;
}

.contact-form-wrapper {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form-wrapper h3 {
    font-size: 1.5rem;
    margin-bottom: 28px;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--gray-900);
    background: var(--off-white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--mint);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.15);
}

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

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

.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success.show {
    display: block;
}

.success-icon {
    margin: 0 auto 16px;
    width: 72px;
    height: 72px;
    background: var(--mint-pale);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-success h4 {
    font-size: 1.375rem;
    margin-bottom: 8px;
    color: var(--midnight);
}

.form-success p {
    color: var(--gray-500);
    font-size: 1rem;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--midnight);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-top: 16px;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-links ul,
.footer-contact ul {
    display: grid;
    gap: 12px;
}

.footer-links a,
.footer-contact a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--mint);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.875rem;
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 1024px) {
    .about-layout,
    .services-wrapper,
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-visual {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }

    .about-img-main img {
        height: 400px;
    }

    .services-visual {
        max-width: 400px;
        margin: 0 auto;
    }

    .services-img {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 32px 24px;
        gap: 24px;
        transform: translateY(-120%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .menu-toggle {
        display: flex;
    }

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

    .stat-item {
        padding: 32px 16px;
    }

    .stat-item:nth-child(2) {
        border-right: none;
    }

    .stat-item:nth-child(1),
    .stat-item:nth-child(2) {
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .auction-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .about-img-accent {
        right: 0;
        bottom: -30px;
    }

    .about-badge {
        left: 0;
        top: -16px;
    }

    .contact-form-wrapper {
        padding: 28px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        justify-content: center;
    }

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

    .stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        padding: 24px 16px;
    }

    .stat-item:last-child {
        border-bottom: none;
    }

    .contact-details {
        gap: 16px;
    }
}

@media (prefers-reduced-motion: no-preference) {
    .reveal[data-reveal] {
        opacity: 0;
        transform: translateY(30px);
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .reveal[data-reveal] {
        opacity: 1;
        transform: none;
    }
}