/* ═══════════════════════════════════════════
   AL-NAHL ORGANIC — Header Stylesheet
   Covers: site-header, logo, nav, cart,
           login-btn, hamburger, mobile menu
═══════════════════════════════════════════ */

/* ══════════════════════════════════════
   SITE HEADER (wrapper)
══════════════════════════════════════ */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1.4rem 0;
    transition: all var(--transition);
}

.site-header.scrolled {
    background: rgba(253,249,243,0.96);
    backdrop-filter: blur(12px);
    padding: 0.8rem 0;
    box-shadow: 0 2px 24px rgba(44,31,14,0.08);
}

/* ══════════════════════════════════════
   HEADER INNER LAYOUT
══════════════════════════════════════ */
.header-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 5vw, 3rem);
    display: flex;
    align-items: center;
    gap: 2rem;
}

/* ══════════════════════════════════════
   LOGO
══════════════════════════════════════ */
.logo {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    flex-shrink: 0;
}

.logo-icon {
    font-size: 1.2rem;
    color: var(--honey);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.55rem;
    font-weight: 600;
    color: var(--bark);
    letter-spacing: 0.04em;
}

.logo-sub {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--honey);
    margin-left: 0.1rem;
}

/* Logo colours when header is transparent (over hero) */
.site-header:not(.scrolled) .logo-text,
.site-header:not(.scrolled) .logo-icon { color: #fff; }
.site-header:not(.scrolled) .logo-sub  { color: var(--honey-light); }

/* ══════════════════════════════════════
   MAIN NAVIGATION
══════════════════════════════════════ */
.main-nav {
    margin-left: auto;
}

.main-nav ul {
    display: flex;
    gap: 2.2rem;
}

.main-nav a {
    font-size: 0.82rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.82);
    position: relative;
    padding-bottom: 3px;
    transition: color var(--transition);
}

/* Nav text colour after scroll */
.site-header.scrolled .main-nav a { color: var(--text-light); }

/* Animated underline */
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0;
    width: 0; height: 1.5px;
    background: var(--honey);
    transition: width var(--transition);
}

.main-nav a:hover,
.main-nav a.active { color: var(--honey); }

.main-nav a:hover::after,
.main-nav a.active::after { width: 100%; }

/* ══════════════════════════════════════
   HEADER ACTIONS (cart + login)
══════════════════════════════════════ */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-left: 1.5rem;
}

/* Cart button */
.cart-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: rgba(255,255,255,0.82);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    transition: color var(--transition);
}

.site-header.scrolled .cart-btn { color: var(--text); }
.cart-btn:hover { color: var(--honey); }

/* Login button */
.login-btn {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.5em 1.3em;
    border: 1px solid rgba(255,255,255,0.45);
    border-radius: 2px;
    color: #fff;
    transition: all var(--transition);
}

.site-header.scrolled .login-btn {
    border-color: var(--honey);
    color: var(--honey);
}

.login-btn:hover {
    background: var(--honey);
    color: #fff;
    border-color: var(--honey);
}

/* ══════════════════════════════════════
   HAMBURGER (mobile toggle)
══════════════════════════════════════ */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
}

.hamburger span {
    display: block;
    width: 24px; height: 1.5px;
    background: #fff;
    transition: all var(--transition);
}

.site-header.scrolled .hamburger span { background: var(--bark); }

/* Animated X state */
.hamburger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ══════════════════════════════════════
   RESPONSIVE — HEADER
══════════════════════════════════════ */
@media (max-width: 768px) {
    /* Full-screen mobile nav overlay */
    .main-nav {
        display: none;
        position: fixed;
        inset: 0;
        background: var(--bark);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        z-index: 999;
    }

    .main-nav.open { display: flex; }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    .main-nav a {
        font-size: 1.5rem;
        color: #fff;
        letter-spacing: 0.1em;
    }

    /* Hide desktop actions, show hamburger */
    .header-actions { display: none; }

    .hamburger {
        display: flex;
        z-index: 1000;
    }

    .hamburger.active span { background: #fff; }
}