/* === LOGIN.CSS ===
   assets/css/login.css
   НАЗНАЧЕНИЕ: Стили страницы авторизации/регистрации
   СВЯЗИ: login.php, themes.css (CSS переменные)
   РАЗМЕР: ~220 строк */

/* -- Reset & Base -- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: hsl(340, 8%, 5%);
    --bg-secondary: hsl(340, 6%, 10%);
    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(0, 0%, 72%);
    --text-muted: hsl(0, 0%, 52%);
    --color-primary: hsl(340, 85%, 62%);
    --color-secondary: hsl(270, 60%, 68%);
    --color-danger: hsl(0, 80%, 58%);
    --card-bg: hsl(340, 6%, 12%);
    --border-color: hsl(340, 8%, 22%);
    --bg-input: hsl(340, 6%, 8%);
    --gradient-primary: linear-gradient(135deg, hsl(340,85%,60%), hsl(270,65%,64%));
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --font-display: 'Comfortaa', cursive;
    --font-sans: 'Nunito', system-ui, sans-serif;
    --transition: 0.2s ease;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    margin: 0;
}

/* -- Gradient Mesh Background -- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    background: var(--bg-primary);
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -20%;
    width: 70%;
    height: 70%;
    background: radial-gradient(circle, hsla(340, 80%, 55%, 0.12) 0%, transparent 70%);
    pointer-events: none;
    animation: meshFloat1 12s ease-in-out infinite;
}

.login-page::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -15%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, hsla(270, 60%, 60%, 0.1) 0%, transparent 70%);
    pointer-events: none;
    animation: meshFloat2 15s ease-in-out infinite;
}

@keyframes meshFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(5%, 8%) scale(1.1); }
}

@keyframes meshFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-6%, -5%) scale(1.05); }
}

/* -- Login Card (glass) -- */
.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 400px;
    background: color-mix(in srgb, var(--card-bg) 70%, transparent);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow-lg);
}

/* -- Logo -- */
.login-logo {
    display: block;
    text-align: center;
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    margin-bottom: 4px;
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 24px;
}

/* -- Tabs -- */
.login-tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 20px;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    padding: 3px;
}

.login-tab {
    flex: 1;
    padding: 8px 0;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.login-tab:hover {
    color: var(--text-secondary);
}

.login-tab.active {
    background: var(--color-primary);
    color: #fff;
}

/* -- Form -- */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.login-field label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.login-input {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.login-input::placeholder {
    color: var(--text-muted);
}

.login-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px hsla(340, 85%, 62%, 0.15);
}

/* -- Error -- */
.login-error {
    font-size: 0.8rem;
    color: var(--color-danger);
    min-height: 0;
    transition: min-height var(--transition);
}

.login-error:empty {
    display: none;
}

/* -- Forgot Password Link -- */
.login-forgot {
    display: block;
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-decoration: none;
    margin: -6px 0 8px;
    transition: color var(--transition);
}

.login-forgot:hover {
    color: var(--color-primary);
}

/* -- Submit Button -- */
.login-btn {
    width: 100%;
    height: 48px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    background: var(--gradient-primary);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: opacity var(--transition), transform var(--transition);
}

.login-btn:hover {
    opacity: 0.9;
}

.login-btn:active {
    transform: scale(0.98);
}

.login-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.login-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* -- Footer text -- */
.login-footer-text {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 16px;
}

.login-footer-text a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.login-footer-text a:hover {
    text-decoration: underline;
}

/* -- Reduced Motion -- */
@media (prefers-reduced-motion: reduce) {
    .login-page::before,
    .login-page::after {
        animation: none;
    }
    .login-input,
    .login-btn,
    .login-tab {
        transition: none;
    }
}

/* -- Responsive -- */
@media (max-width: 480px) {
    .login-card {
        padding: 24px 20px;
    }
    .login-logo {
        font-size: 1.4rem;
    }
}