/* ---------------------------------------------------
   THEME COLORS & VARIABLES
--------------------------------------------------- */
:root {
    --bg: #0a0a0a;
    --card-bg: #121212;
    --text: #ffffff;
    --text-secondary: #a0a0a0;
    --primary: #8b5cf6;
    --primary-hover: #a78bfa;
    --danger: #ef4444;
    --success: #10b981;
    --border: #2a2a2a;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --danger: #dc2626;
    --success: #059669;
    --border: #e2e8f0;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

/* ---------------------------------------------------
   BASE & RESET
--------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    transition: var(--transition);
}

.content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    animation: fadeIn 0.6s ease-out;
}

/* ---------------------------------------------------
   NAVBAR
--------------------------------------------------- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), #ec4899);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transition: var(--transition);
}

.theme-toggle {
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    transition: var(--transition);
    user-select: none;
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
}

.theme-toggle span {
    font-size: 1.2rem;
    transition: var(--transition);
}

/* ---------------------------------------------------
   CARDS & CONTAINERS
--------------------------------------------------- */
.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: slideUp 0.4s ease-out;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.auth-card {
    max-width: 400px;
    width: 100%;
    animation-delay: 0.2s;
}

.page-center {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
    padding: 2rem;
}

/* ---------------------------------------------------
   TYPOGRAPHY
--------------------------------------------------- */
.page-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: fadeIn 0.8s ease-out;
}

h1, h2, h3 {
    margin-bottom: 1rem;
    font-weight: 600;
}

h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.25rem;
    color: var(--primary);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* ---------------------------------------------------
   FORMS & INPUTS
--------------------------------------------------- */
input {
    width: 100%;
    padding: 0.875rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    transition: var(--transition);
    margin-bottom: 1rem;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ---------------------------------------------------
   BUTTONS
--------------------------------------------------- */
.btn-primary {
    display: inline-block;
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

/* ---------------------------------------------------
   ADMIN GRID
--------------------------------------------------- */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.admin-card {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 2rem;
    transition: var(--transition);
}

.admin-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.admin-card.danger {
    border: 1px solid var(--danger);
}

.admin-card.danger:hover {
    border-color: var(--danger);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.2);
}

/* ---------------------------------------------------
   MESSAGES & STATES
--------------------------------------------------- */
.message {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    font-size: 0.875rem;
    text-align: center;
    animation: fadeIn 0.3s ease-out;
}

/* ---------------------------------------------------
   ANIMATIONS
--------------------------------------------------- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------------------------------------------------
   RESPONSIVE
--------------------------------------------------- */
@media (max-width: 768px) {
    .content {
        padding: 1rem;
    }

    .navbar {
        padding: 1rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }
}

/* Additional animations */
.theme-transition * {
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.shake {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

.success {
    animation: pulse 0.6s ease-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

body.loaded .card {
    animation: slideUp 0.6s ease-out forwards;
}

/* ---------------------------------------------------
   ADAPTIVE NAVBAR
--------------------------------------------------- */

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text);
    background: rgba(99, 102, 241, 0.1);
}

.nav-link.active {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.15);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border-radius: 50px;
    cursor: pointer;
}

.user-info i {
    font-size: 1.2rem;
    color: var(--primary);
}

.username {
    font-weight: 500;
}

.logout-form {
    display: flex;
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.logout-btn:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

.login-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
}

.login-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
}

.theme-toggle i {
    font-size: 1rem;
}

.theme-toggle .fa-moon {
    display: block;
}

.theme-toggle .fa-sun {
    display: none;
}

[data-theme="light"] .theme-toggle .fa-moon {
    display: none;
}

[data-theme="light"] .theme-toggle .fa-sun {
    display: block;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* Мобильное меню */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--card-bg);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.2);
    transition: right 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.mobile-menu-header span {
    font-size: 1.2rem;
    font-weight: 600;
}

.close-menu {
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-links {
    padding: 1rem;
}

.mobile-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    color: var(--text);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.mobile-link:hover {
    background: rgba(99, 102, 241, 0.1);
}

.mobile-user-section {
    margin-top: 2rem;
    padding: 1rem;
    border-top: 1px solid var(--border);
}

.mobile-user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.mobile-logout-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.mobile-logout-btn:hover {
    background: #dc2626;
}

.mobile-login-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    margin-top: 1rem;
    transition: var(--transition);
}

.mobile-login-btn:hover {
    background: var(--primary-hover);
}

/* Адаптивность */
@media (max-width: 1024px) {
    .nav-links {
        gap: 1rem;
    }

    .nav-link span {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .user-menu .logout-form,
    .theme-toggle .theme-text,
    .login-btn span {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .theme-toggle {
        padding: 0.5rem;
    }

    .user-info {
        padding: 0.5rem;
    }

    .user-info .username {
        display: none;
    }

    .login-btn {
        padding: 0.5rem;
    }

    .login-btn span {
        display: none;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0.5rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .content {
        padding: 1rem;
    }
}

/* Затемнение фона при открытом меню */
body.menu-open::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    animation: fadeIn 0.3s ease;
}

/* ===============================
   GLOBAL SCROLLBAR STYLE
   =============================== */

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) transparent;
}

/* Chrome / Edge / Safari */
*::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

*::-webkit-scrollbar-track {
    background: transparent;
}

*::-webkit-scrollbar-thumb {
    background-color: rgba(139, 92, 246, 0.5);
    border-radius: 10px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
    background-color: rgba(139, 92, 246, 0.8);
}