/* ==============================================================
   استایل‌های مدرن صفحه ورود سامانه CRM آموزشگاه زبان (RTL)
   ============================================================== */

@import url('https://cdn.jsdelivr.net/gh/rastikerdar/vazirmatn@v33.003/Vazirmatn-font-face.css');

:root {
    --primary: #4338ca;
    --primary-light: #6366f1;
    --primary-dark: #3730a3;
    --primary-glow: rgba(99, 102, 241, 0.25);
    
    --bg-dark: #090d16;
    --bg-card: rgba(17, 24, 39, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-focus: #6366f1;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --danger-border: rgba(239, 68, 68, 0.3);
    
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --warning-border: rgba(245, 158, 11, 0.3);

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --success-border: rgba(16, 185, 129, 0.3);
    
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    direction: rtl;
    padding: 24px;
    position: relative;
    overflow-x: hidden;
}

/* افکت‌های نوری پس‌زمینه (Ambient Glow) */
body::before, body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: 0;
    pointer-events: none;
}

body::before {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.25) 0%, rgba(0, 0, 0, 0) 70%);
    top: -100px;
    right: -100px;
}

body::after {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.18) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: -120px;
    left: -120px;
}

.auth-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 460px;
    margin: auto;
}

.auth-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.brand-section {
    text-align: center;
    margin-bottom: 32px;
}

.brand-icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    color: #fff;
    margin-bottom: 16px;
    box-shadow: 0 8px 24px var(--primary-glow);
}

.brand-title {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.3px;
    margin-bottom: 6px;
}

.brand-subtitle {
    font-size: 13.5px;
    color: var(--text-muted);
}

/* فرم و ورودی‌ها */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    right: 14px;
    color: var(--text-dim);
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.form-input {
    width: 100%;
    height: 48px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0 46px 0 16px;
    color: #fff;
    font-size: 14px;
    transition: var(--transition);
}

.form-input::placeholder {
    color: var(--text-dim);
    font-size: 13px;
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.form-input:focus + .input-icon,
.input-container:focus-within .input-icon {
    color: var(--primary-light);
}

/* دکمه نمایش / پنهان گذرواژه */
.toggle-password {
    position: absolute;
    left: 12px;
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.toggle-password:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

/* سطر گزینه‌ها (مرا به خاطر بسپار) */
.form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    font-size: 13px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-muted);
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    accent-color: var(--primary-light);
    width: 16px;
    height: 16px;
    cursor: pointer;
    border-radius: 4px;
}

/* دکمه ارسال */
.btn-submit {
    width: 100%;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 10px 25px var(--primary-glow);
    transition: var(--transition);
}

.btn-submit:hover {
    background: linear-gradient(135deg, #4f46e5, #312e81);
    transform: translateY(-2px);
    box-shadow: 0 14px 28px var(--primary-glow);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* هشدارهای خطا و اعلان */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    font-size: 13.5px;
    line-height: 1.6;
    margin-bottom: 22px;
    animation: fadeIn 0.3s ease;
}

.alert-danger {
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    color: #fca5a5;
}

.alert-warning {
    background: var(--warning-bg);
    border: 1px solid var(--warning-border);
    color: #fcd34d;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: #6ee7b7;
}

.alert-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

/* نشان امنیتی پایین کارت */
.security-badge {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-dim);
    font-size: 12px;
    text-align: center;
}

.security-badge svg {
    color: var(--success);
    flex-shrink: 0;
}

/* انیمیشن‌ها */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .spinner {
    display: block;
}

/* واکنش‌گرایی در صفحات کوچک */
@media (max-width: 480px) {
    body { padding: 16px; }
    .auth-card { padding: 28px 20px; border-radius: 16px; }
    .brand-title { font-size: 20px; }
}