:root {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-link: #4f46e5;
    --border-color: #e1e5ed;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --gradient-start: #667eea;
    --gradient-end: #764ba2;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --input-bg: #ffffff;
    --input-text: #1a1a2e;
    --dropdown-bg: #ffffff;
    --dropdown-text: #1a1a2e;
}

[data-theme="dark"] {
    --bg-primary: #0a0a1a;
    --bg-secondary: #141428;
    --bg-card: #1a1a35;
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0c0;
    --text-link: #a78bfa;
    --border-color: #2a2a4a;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --gradient-start: #8b5cf6;
    --gradient-end: #f093fb;
    --glass-bg: rgba(20, 20, 40, 0.85);
    --input-bg: #1a1a35;
    --input-text: #e8e8f0;
    --dropdown-bg: #1a1a35;
    --dropdown-text: #e8e8f0;
}

* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

html, body {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    scroll-behavior: smooth;
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== СТРЕЛКА НАЗАД ===== */
.back-button {
    position: fixed;
    top: 80px;
    left: 20px;
    z-index: 9998;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--shadow-color);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .back-button:hover {
        transform: scale(1.1);
        background: var(--gradient-start);
        color: white;
    }

/* ===== НАВБАР ===== */
.glass-nav {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 30px var(--shadow-color);
    padding: 12px 0;
}

.glass-footer {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    margin-top: auto;
}

.glass-dropdown {
    background: var(--dropdown-bg) !important;
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
}

.dropdown-item {
    color: var(--dropdown-text) !important;
}

    .dropdown-item:hover {
        background: var(--bg-primary);
        color: var(--text-link) !important;
    }

/* ===== ССЫЛКИ В МЕНЮ ===== */
.nav-link-glass {
    color: var(--text-link) !important;
    font-weight: 600;
    padding: 8px 18px !important;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

    .nav-link-glass i {
        color: var(--text-link);
        margin-right: 4px;
    }

    .nav-link-glass:hover {
        background: var(--bg-card);
        box-shadow: 0 4px 20px var(--shadow-color);
        color: var(--text-primary) !important;
    }

        .nav-link-glass:hover i {
            color: var(--text-primary);
        }

/* ===== БРЕНД ===== */
.brand-text {
    font-weight: 900;
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-highlight {
    font-weight: 900;
    font-size: 1.8rem;
    color: var(--text-primary);
}

/* ===== КАРТОЧКИ ===== */
.card-glass {
    background: var(--bg-card);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 24px var(--shadow-color);
    backdrop-filter: blur(12px);
    padding: 24px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    color: var(--text-primary);
}

    .card-glass:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 40px var(--shadow-color);
    }

/* ===== ФОРМЫ ===== */
.form-control-glass {
    background: var(--input-bg) !important;
    border: 2px solid var(--border-color);
    border-radius: 16px !important;
    padding: 12px 20px;
    color: var(--input-text) !important;
    transition: all 0.3s ease;
    width: 100%;
}

    .form-control-glass:focus {
        border-color: var(--gradient-start);
        box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
        background: var(--input-bg) !important;
        color: var(--input-text) !important;
        outline: none;
    }

    .form-control-glass::placeholder {
        color: var(--text-secondary);
        opacity: 0.7;
    }

/* ===== КНОПКИ ===== */
.btn-primary-gradient {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border: none;
    color: white !important;
    transition: all 0.3s ease;
}

    .btn-primary-gradient:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
        color: white !important;
    }

.btn-glass {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

    .btn-glass:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 30px var(--shadow-color);
        color: var(--text-primary);
        background: var(--bg-primary);
    }

/* ===== АВАТАРКИ ===== */
.avatar-xs {
    width: 32px;
    height: 32px;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-sm {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-md {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-lg {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-xl {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 50%;
}

/* ===== ОКОШКИ СТАТИСТИКИ ===== */
.stat-item {
    text-align: center;
    padding: 15px 25px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    min-width: 120px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px var(--shadow-color);
}

    .stat-item:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 30px var(--shadow-color);
    }

.stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ===== АДАПТИВ ===== */
@media (max-width: 768px) {
    .card-glass {
        padding: 16px;
        border-radius: 16px;
    }

    .brand-text, .brand-highlight {
        font-size: 1.4rem;
    }

    .back-button {
        top: 75px;
        left: 10px;
        width: 38px;
        height: 38px;
        font-size: 16px;
    }

    .stat-item {
        min-width: 100px;
        padding: 12px 18px;
    }

    .stat-number {
        font-size: 1.5rem;
    }
}