/* ========== Glass Header ========== */
.glass-header {
    position: relative;
    background: linear-gradient(120deg, var(--color0201) 0%, var(--color0202) 100%);
    padding: 8px 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    /* خط لهجه‌ای بالای هدر — تفاوت بصری با تم ۴ */
    border-top: 3px solid var(--color0204);
}

/* ========== Logo ========== */
.logo-link img {
    width: 140px;
    height: auto;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.15));
    transition: transform 0.3s ease;
}

.logo-link:hover img {
    transform: scale(1.05);
}

/* ========== Navbar (Desktop) — کپسول شیشه‌ای ========== */
.glass-navbar ul {
    display: flex;
    direction: rtl;
    align-items: center;
    gap: 12px;
    margin: 0;
    padding: 6px 14px;
    list-style: none;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.glass-navbar ul li a {
    text-decoration: none;
    font-family: Sahel-SemiBold, sans-serif;
    color: var(--color0203);
    font-size: 15px;
    position: relative;
    padding: 8px 14px;
    border-radius: 999px;
    transition: all 0.3s ease;
}

.glass-navbar ul li a:hover {
    color: var(--color0204);
}

/* ========== Glass Button ========== */
.btn-glass {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    padding: 8px 22px !important;
    color: var(--color0203) !important;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.btn-glass:hover {
    color: var(--color0202) !important;
    transform: translateY(-2px) !important;
}

.glass-navbar ul li a.btn-glass {
    padding: 8px 18px !important;
    border-radius: 999px;
    box-shadow: none;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    background: color-mix(in srgb, var(--color0204) 70%, transparent);
}

.glass-navbar ul li a.btn-glass:hover {
    transform: translateY(-1px) !important;
}

/* ========== Hamburger Menu Button ========== */
.menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1100;
    width: 32px;
    height: 28px;
    justify-content: center;
}

.menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color0203);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.menu-btn.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.menu-btn.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.menu-btn.active span {
    background: var(--color0204);
}

/* ========== Responsive (Mobile) ========== */
@media screen and (max-width: 768px) {
    .menu-btn {
        display: flex;
    }

    .glass-navbar {
        position: fixed;
        inset: 0;
        background: linear-gradient(160deg, var(--color0201) 0%, var(--color0202) 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        clip-path: inset(0 0 100% 0);
        opacity: 0;
        transition: clip-path 0.45s ease, opacity 0.3s ease;
        z-index: 1050;
    }

    .glass-navbar.active {
        clip-path: inset(0 0 0 0);
        opacity: 1;
    }

    .glass-navbar ul {
        flex-direction: column;
        gap: 24px;
        background: transparent;
        border: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        padding: 0;
    }

    .glass-navbar ul li a {
        font-size: 18px;
        padding: 12px 28px;
    }

    .glass-navbar ul li a.btn-glass {
        padding: 10px 28px !important;
        border-radius: 10px;
        box-shadow: none;
        border: 1px solid var(--color0203);
    }

    .btn-glass {
        padding: 14px 32px !important;
        font-size: 16px;
    }
    .logo-link img {
        width: 110px;
    }
}

@media screen and (min-width: 769px) and (max-width: 1200px) {
    .glass-navbar ul {
        gap: 6px;
    }

    .glass-navbar ul li a {
        font-size: 14px;
        padding: 8px 10px;
    }
}