/* ════════════════════════════════════════════
   header.css — STREAD PREM
════════════════════════════════════════════ */

.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-height);
    z-index: 900;
    display: flex;
    align-items: center;
    background: rgba(10, 10, 15, 0.50); /* 50% transparansi (dark) */
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: background var(--duration-base), box-shadow var(--duration-base), border-color var(--duration-base);
}
.header.scrolled {
    background: rgba(10, 10, 15, 0.50); /* Tetap 50% saat di-scroll (dark) */
    box-shadow: 0 4px 30px rgba(0,0,0,0.4);
    border-bottom-color: var(--color-border);
}

.header-inner {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

/* ── Logo ── */
.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}
.logo-icon {
    width: 38px; height: 38px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
    font-weight: 900;
    color: #fff;
    font-family: var(--font-display);
    box-shadow: 0 4px 14px rgba(108,99,255,0.4);
    flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-name {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.05rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.logo-tagline { font-size: 0.65rem; color: var(--color-text-3); text-transform: uppercase; letter-spacing: 0.08em; }

/* ── Nav ── */
.header-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
    padding: 8px 14px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-2);
    transition: all var(--duration-fast);
    white-space: nowrap;
}
.nav-link:hover { color: var(--color-text); background: rgba(255,255,255,0.06); }
.nav-link.active { color: var(--color-primary); background: rgba(108,99,255,0.1); }

/* ── Actions ── */
.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.header-actions .btn { padding: 9px 18px; font-size: 0.875rem; }

/* ── Hamburger ── */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px; height: 40px;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--duration-fast);
    cursor: pointer;
    background: transparent;
    border: 1px solid var(--color-border);
}
.hamburger:hover { background: rgba(255,255,255,0.06); }
.hamburger span {
    display: block;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--duration-base) var(--ease-out);
    transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Menu ── */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px 24px;
    z-index: 899;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base);
    pointer-events: none;
}
.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}
.mobile-nav { display: flex; flex-direction: column; gap: 4px; margin-bottom: 16px; }
.mobile-nav-link {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-2);
    transition: all var(--duration-fast);
    display: flex; align-items: center; gap: 10px;
}
.mobile-nav-link:hover { color: var(--color-text); background: rgba(255,255,255,0.06); }
.mobile-nav-link.active { color: var(--color-primary); background: rgba(108,99,255,0.1); }
.mobile-actions { display: flex; flex-direction: column; gap: 8px; padding-top: 12px; border-top: 1px solid var(--color-border); }
.mobile-actions .btn { justify-content: center; }

@media (max-width: 900px) {
    .header-nav { display: none; }
    .header-actions { display: none; }
    .hamburger { display: flex; }
    .header-inner { padding: 0 16px; }
}

/* ══════════════════════════════════════════
   LIGHT MODE OVERRIDES — Header
══════════════════════════════════════════ */
[data-theme="light"] .header {
    background: rgba(255, 255, 255, 0.50); /* 50% transparansi (light) */
    border-bottom-color: rgba(0, 0, 0, 0.07);
    box-shadow: 0 1px 16px rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .header.scrolled {
    background: rgba(255, 255, 255, 0.50); /* Tetap 50% saat di-scroll di Light Mode */
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.10);
    border-bottom-color: rgba(0, 0, 0, 0.09);
}
[data-theme="light"] .nav-link:hover {
    background: rgba(99, 102, 241, 0.08);
    color: var(--color-text);
}
[data-theme="light"] .nav-link.active {
    background: rgba(99, 102, 241, 0.10);
    color: var(--color-primary);
}
[data-theme="light"] .hamburger {
    border-color: rgba(0, 0, 0, 0.12);
}
[data-theme="light"] .hamburger:hover {
    background: rgba(0, 0, 0, 0.05);
}
[data-theme="light"] .mobile-menu {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .mobile-nav-link:hover {
    background: rgba(99, 102, 241, 0.07);
    color: var(--color-text);
}
[data-theme="light"] .mobile-actions {
    border-top-color: rgba(0, 0, 0, 0.08);
}