/* ========================================
   ШАПКА — ПРОЗРАЧНАЯ, С ГРАДИЕНТНЫМ РАЗДЕЛИТЕЛЕМ
   ======================================== */

.header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    padding: 1.2rem 0 0.6rem;
}

.header-container {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* ============ ВЕРХНЯЯ СТРОКА ============ */
.header-top-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
}

/* ============ ЛОГОТИП ============ */
.logo {
    grid-column: 2;
    justify-self: center;
    font-family: var(--font-heading);
    font-size: 1.7rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
    transition: opacity 0.2s;
}

.logo span {
    color: var(--color-accent);
}

.logo:hover {
    opacity: 0.85;
}

/* ============ БУРГЕР ============ */
.burger-btn {
    grid-column: 1;
    justify-self: start;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.4));
}

.burger-btn span {
    display: block;
    width: 100%;
    height: 2.5px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s;
}

.burger-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background: var(--color-accent);
}

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

.burger-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background: var(--color-accent);
}

/* ============ ПРАВАЯ ЧАСТЬ (профиль + выход) ============ */
.header-actions {
    grid-column: 3;
    justify-self: end;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.profile-icon,
.logout-btn,
.login-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
    text-decoration: none;
    transition: all 0.25s ease;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.profile-icon:hover,
.logout-btn:hover,
.login-btn:hover {
    background: rgba(255, 107, 157, 0.25);
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.profile-icon svg,
.logout-btn svg,
.login-btn svg {
    display: block;
    stroke: currentColor;
}

/* ============ ГРАДИЕНТНЫЙ РАЗДЕЛИТЕЛЬ ============ */
.header-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg,
            rgba(255, 255, 255, 0) 0%,
            rgba(255, 255, 255, 0) 10%,
            rgba(255, 255, 255, 0.9) 50%,
            rgba(255, 255, 255, 0) 90%,
            rgba(255, 255, 255, 0) 100%);
}

/* ============ ВКЛАДКИ-КНОПКИ ============ */
.nav-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.7rem;
}

.nav-tabs a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.3rem;
    background: var(--color-accent);
    color: #ffffff;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.28);
    transition: all 0.25s ease;
    white-space: nowrap;
}

.nav-tabs a:hover {
    background: #ff85b0;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 107, 157, 0.4);
}

.nav-tabs a.active {
    background: #ffffff;
    color: var(--color-accent);
    border-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 14px rgba(255, 255, 255, 0.35);
}

/* ============ МОБИЛЬНАЯ ВЕРСИЯ ============ */
@media (max-width: 768px) {
    .nav-tabs {
        display: none;
    }

    .header-divider {
        display: none;
    }

    .logo {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {

    .profile-icon,
    .logout-btn,
    .login-btn {
        width: 34px;
        height: 34px;
    }
}

@media (max-width: 480px) {

    .profile-icon,
    .logout-btn,
    .login-btn {
        width: 30px;
        height: 30px;
    }

    .profile-icon svg,
    .logout-btn svg,
    .login-btn svg {
        width: 18px;
        height: 18px;
    }
}

/* ========================================
   БОКОВОЕ МЕНЮ (бургер)
   ======================================== */
.side-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.side-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.side-menu {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    background: var(--color-primary);
    z-index: 1000;
    transition: left 0.35s cubic-bezier(0.34, 1.2, 0.64, 1);
    padding: 1.5rem 1.2rem;
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.3);
    overflow-y: auto;
}

.side-menu.active {
    left: 0;
}

.side-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1.5rem;
}

.side-menu-logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-white);
}

.side-menu-logo span {
    color: var(--color-accent);
}

.side-menu-close {
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s, transform 0.3s;
    padding: 0 0.3rem;
}

.side-menu-close:hover {
    color: var(--color-accent);
    transform: rotate(90deg);
}

.side-menu-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.side-menu-links li {
    margin-bottom: 0.2rem;
}

.side-menu-links li hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin: 0.8rem 0;
}

.side-menu-links a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s;
}

.side-menu-links a:hover {
    background: rgba(255, 107, 157, 0.15);
    color: var(--color-white);
}

.side-menu-links a.active {
    background: rgba(255, 107, 157, 0.2);
    color: var(--color-accent);
}