/* ============================================================
   layout.css — Header, main content container, footer,
                language switcher, nav login button
   ============================================================ */

/* ── Header ──────────────────────────────────────────────── */
header {
    background-color: var(--card-bg);
    box-shadow: var(--shadow-light);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 0.5rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 65px;
    width: auto;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.8;
}

h1 {
    font-size: 1.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-text-fill-color: var(--text-primary);
}

h1:hover {
    background: linear-gradient(135deg, #88a09a, #88a09a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease, -webkit-text-fill-color 0s;
}

h1:not(:hover) {
    -webkit-text-fill-color: var(--text-primary);
    background-clip: initial;
    transition: all 0.3s ease, -webkit-text-fill-color 0s;
}

.header-separator {
    height: 1px;
    background-color: var(--border-default);
}

/* ── Nav tabs ────────────────────────────────────────────── */
.main-nav {
    display: flex;
    gap: 2rem;
    margin-top: 0;
    align-items: center;
    width: auto;
}

.nav-tab {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    -webkit-text-fill-color: var(--text-primary);
    font-weight: 500;
}

.nav-tab:hover {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease, -webkit-text-fill-color 0s;
}

.nav-tab.active {
    color: var(--text-primary);
    font-weight: 600;
    background: linear-gradient(var(--card-bg), var(--card-bg)),
                linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    border: 2px solid transparent;
}

.nav-tab:not(.active):not(:hover) {
    -webkit-text-fill-color: var(--text-secondary);
    background-clip: initial;
    transition: all 0.3s ease, -webkit-text-fill-color 0s;
}

.nav-tab.active:hover {
    color: var(--text-primary);
    -webkit-text-fill-color: var(--text-primary);
    background: linear-gradient(var(--card-bg), var(--card-bg)),
                linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    background-origin: border-box;
    background-clip: padding-box, border-box;
}

/* Enhanced navigation link styling */
.nav-link-enhanced {
    padding: 0.6rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.nav-link-enhanced:hover {
    background: linear-gradient(135deg, rgba(11, 74, 125, 0.08), rgba(18, 104, 12, 0.08));
    color: var(--gradient-start);
}

/* ── Main content container ──────────────────────────────── */
main {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

/* ── Desktop-only helper ─────────────────────────────────── */
.desktop-only {
    display: block;
}

/* ── Footer ──────────────────────────────────────────────── */
footer {
    background: #1a1a1a;
    color: #ffffff;
    padding: 4rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-col h4 {
    color: #ffffff;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-col p, .footer-col a {
    color: #a0a0a0;
    text-decoration: none;
    display: block;
    margin-bottom: 0.75rem;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: #ffffff;
}

/* ── Language Switcher ───────────────────────────────────── */
.lang-switch {
    display: flex;
    gap: 0.5rem;
    margin-right: 1.5rem;
    align-items: center;
}

.lang-btn {
    background: none;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

.lang-btn.active {
    color: #1a1a1a;
    background-color: rgba(0, 0, 0, 0.05);
}

.lang-btn:hover {
    color: var(--text-primary);
}

/* ── Navigation Login Button ─────────────────────────────── */
.nav-login-btn {
    width: 100%;
    padding: 0.6rem 1.5rem;
    background: white;
    color: black;
    border: 2px solid transparent;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
    margin-bottom: 1rem;
    background-image: linear-gradient(white, white), linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    background-origin: border-box;
    background-clip: padding-box, border-box;
}

.nav-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.nav-login-btn.outline {
    background: transparent;
    color: #1a1a1a;
}

.nav-login-btn.outline:hover {
    background: #1a1a1a;
    color: white;
}

/* Modal header row (shared layout helper) */
.modal-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
}

.modal-header-row h2 {
    flex: 1;
}

.header-actions {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
    .desktop-nav,
    .desktop-only {
        display: none;
    }

    .header-main {
        justify-content: space-between;
        flex-direction: row;
        align-items: center;
    }

    .header-content {
        padding: 1rem;
    }

    .header-main {
        gap: 1rem;
    }

    .header-left {
        gap: 0.75rem;
    }

    .header-left img.logo {
        height: 50px !important;
    }

    .header-left h1 {
        font-size: 1.3rem !important;
    }

    .header-left h2 {
        font-size: 0.9rem !important;
    }

    .main-nav .filter-apply-button {
        padding: 0.5rem 0.75rem !important;
        font-size: 0.8rem !important;
    }

    .main-nav {
        flex-wrap: wrap;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 1rem;
    }

    .header-left h1 {
        font-size: 1.4rem;
    }

    .header-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .main-nav {
        align-self: flex-end;
    }
}