@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
    --bg-page: #0d1117;
    --bg-card: #161b22;
    --bg-panel: #1c2230;
    --color-primary: #f0b429;
    --color-green: #22c55e;
    --color-yellow: #f0b429;
    --color-white: #f0f6fc;
    --color-muted: #8b949e;
    --color-header: #090d13;
    --color-border: rgba(255,255,255,0.07);
    --color-accent: #3b82f6;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
    --transition: all 0.2s ease;
}

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

body {
    background-color: var(--bg-page);
    color: var(--color-white);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

.main-container,
.page-container {
    width: 100%;
    margin: 0;
    background-color: var(--bg-page);
    min-height: 100vh;
}

/* ── Banner ── */
.banner-wrapper {
    padding: 12px 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.banner-wrapper img {
    max-width: 100%;
    border-radius: var(--radius-md);
}

/* ── Header ── */
.main-header {
    background-color: var(--color-header);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 20px rgba(0,0,0,0.6);
}

.header-top {
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    width: 100%;
}

.logo img {
    height: 44px;
    border-radius: var(--radius-sm);
}

.header-auth {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-login {
    background: transparent;
    color: var(--color-yellow);
    border: 1.5px solid var(--color-yellow);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.3px;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-login:hover {
    background: rgba(240,180,41,0.12);
}

.btn-register {
    background: linear-gradient(135deg, #f0b429, #e09a10);
    color: #0d1117;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.3px;
    box-shadow: 0 0 18px rgba(240,180,41,0.25);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-register:hover {
    box-shadow: 0 0 28px rgba(240,180,41,0.45);
    transform: translateY(-1px);
}

/* ── Desktop Nav ── */
.desktop-nav {
    display: none;
    background-color: rgba(255,255,255,0.02);
    justify-content: center;
    align-items: center;
}

.mobile-nav-strip {
    background-color: rgba(255,255,255,0.03);
    border-top: 1px solid var(--color-border);
}

.mobile-nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 20px;
}

.menu-label {
    color: var(--color-muted);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.menu-toggle {
    background: var(--bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    width: 34px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.menu-toggle:hover,
.menu-toggle.active {
    background: var(--color-yellow);
    border-color: var(--color-yellow);
}

.menu-toggle svg {
    width: 16px;
    height: 16px;
    fill: var(--color-muted);
}

.menu-toggle.active svg,
.menu-toggle:hover svg {
    fill: #0d1117;
}

body.no-scroll { overflow: hidden; }

/* ── Footer ── */
.main-footer {
    background-color: var(--color-header);
    border-top: 1px solid var(--color-border);
    padding: 48px 16px 24px;
    margin-top: 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--color-border);
}

.footer-logo {
    height: 40px;
    margin-bottom: 14px;
}

.footer-desc {
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.7;
}

.footer-nav h4,
.footer-contact h4 {
    color: var(--color-yellow);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.footer-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav a,
.footer-contact a {
    color: var(--color-muted);
    font-size: 14px;
    transition: var(--transition);
}

.footer-nav a:hover,
.footer-contact a:hover {
    color: var(--color-white);
    padding-left: 4px;
}

.footer-contact p {
    color: var(--color-muted);
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-links {
    margin-top: 12px;
}

.footer-bottom {
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

.footer-copyright {
    color: var(--color-muted);
    font-size: 12px;
}

/* ── Responsive ── */
@media (max-width: 767px) {
    .desktop-nav.active {
        display: block;
        width: 100%;
        padding: 20px 0;
        position: absolute;
        top: 100%;
        left: 0;
        background: var(--color-header);
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 8px 24px rgba(0,0,0,0.5);
        z-index: 999;
    }

    .desktop-nav.active ul {
        display: flex;
        flex-direction: column;
        gap: 4px;
        list-style: none;
        align-items: stretch;
        padding: 0 16px;
    }

    .desktop-nav.active a {
        font-size: 14px;
        font-weight: 600;
        color: var(--color-white);
        text-transform: uppercase;
        padding: 12px 16px;
        border-radius: var(--radius-sm);
        display: block;
    }

    .desktop-nav.active a:hover {
        background: rgba(255,255,255,0.05);
        color: var(--color-yellow);
    }
}

@media (min-width: 768px) {
    .mobile-nav-strip { display: none; }

    .desktop-nav {
        display: flex;
        justify-content: center;
        padding: 0;
    }

    .desktop-nav ul {
        display: flex;
        justify-content: center;
        gap: 4px;
        list-style: none;
        padding: 0;
    }

    .desktop-nav a {
        font-size: 12px;
        font-weight: 700;
        color: var(--color-muted);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        padding: 14px 16px;
        display: block;
        border-bottom: 2px solid transparent;
        transition: var(--transition);
    }

    .desktop-nav a:hover {
        color: var(--color-white);
        border-bottom-color: var(--color-yellow);
    }

    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

    .logo img { height: 52px; }

    .btn-login,
    .btn-register {
        padding: 9px 18px;
        font-size: 13px;
    }
}