/* Modern Premium Authentication Styles (GKSchools 2026) */

:root {
    --auth-primary: #3b82f6;
    --auth-primary-hover: #2563eb;
    --auth-success: #10b981;
    --auth-success-hover: #059669;
    --auth-bg: #f8fafc;
    --auth-card-bg: #ffffff;
    --auth-text-dark: #1e293b;
    --auth-text-muted: #64748b;
    --auth-border: #e2e8f0;
    --auth-radius: 16px;
    --auth-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --auth-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -6px rgba(0, 0, 0, 0.1);
}

body {
    background-color: var(--auth-bg);
    color: var(--auth-text-dark);
    font-family: 'Inter', 'Outfit', -apple-system, sans-serif;
}

/* Auth Layout Wrapper */
.auth-wrapper {
    width: 100%;
    max-width: 520px !important;
    margin: 60px auto !important;
    padding: 0 20px;
    box-sizing: border-box;
}

.auth-card {
    border: 1px solid var(--auth-border) !important;
    border-radius: var(--auth-radius) !important;
    background: var(--auth-card-bg);
    box-shadow: var(--auth-shadow) !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.auth-card:hover {
    box-shadow: var(--auth-shadow-hover) !important;
    transform: translateY(-2px);
}

.card-body {
    padding: 40px !important;
}

@media (max-width: 576px) {
    .card-body {
        padding: 30px 20px !important;
    }
    .auth-wrapper {
        margin: 30px auto !important;
    }
}

/* Titles & Text */
.signup-heading {
    font-size: 2rem !important;
    font-weight: 800 !important;
    color: var(--auth-text-dark);
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, var(--auth-primary), #1d4ed8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px !important;
    text-align: center;
}

.text-muted {
    color: var(--auth-text-muted) !important;
    font-size: 0.95rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px !important;
    text-align: left;
}

.form-label {
    display: inline-block;
    color: var(--auth-text-dark);
    font-size: 0.9rem;
    font-weight: 600 !important;
    margin-bottom: 8px !important;
}

.input-box {
    display: block;
    width: 100%;
    border-radius: 10px !important;
    padding: 12px 16px !important;
    border: 1px solid var(--auth-border) !important;
    background-color: #f8fafc !important;
    color: var(--auth-text-dark) !important;
    font-size: 1rem !important;
    transition: all 0.2s ease-in-out !important;
    box-sizing: border-box;
}

.input-box::placeholder {
    color: #94a3b8;
}

.input-box:focus {
    background-color: #ffffff !important;
    border-color: var(--auth-primary) !important;
    outline: 0;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15) !important;
}

/* Validation Invalid State */
.input-box.is-invalid {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15) !important;
}

/* Submit Buttons */
.auth-btn, .btn {
    display: block;
    width: 100%;
    border-radius: 10px !important;
    padding: 14px !important;
    font-weight: 700 !important;
    font-size: 1rem !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    transition: all 0.2s ease-in-out !important;
    border: none !important;
    cursor: pointer;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.1), 0 2px 4px -1px rgba(59, 130, 246, 0.06);
}

.btn-success {
    color: #ffffff !important;
    background: linear-gradient(135deg, var(--auth-success), #047857) !important;
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--auth-success-hover), #065f46) !important;
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(16, 185, 129, 0.2);
}

.btn-primary {
    color: #ffffff !important;
    background: linear-gradient(135deg, var(--auth-primary), #1d4ed8) !important;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--auth-primary-hover), #1e40af) !important;
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.2);
}

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

/* Alerts */
.alert {
    border-radius: 10px !important;
    padding: 12px 16px !important;
    font-size: 0.9rem !important;
    margin-bottom: 20px !important;
    font-weight: 500 !important;
}

.alert-danger {
    color: #991b1b !important;
    background-color: #fef2f2 !important;
    border: 1px solid #fca5a5 !important;
}

.alert-success {
    color: #065f46 !important;
    background-color: #ecfdf5 !important;
    border: 1px solid #a7f3d0 !important;
}

/* Links & Navigation */
.auth-links {
    margin-top: 24px !important;
    font-size: 0.92rem;
    color: var(--auth-text-muted);
}

.auth-links a {
    color: var(--auth-primary) !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    transition: color 0.15s ease;
}

.auth-links a:hover {
    color: var(--auth-primary-hover) !important;
    text-decoration: underline !important;
}