/*
 * V.R.C Authentication Pages Styles
 * [SECURE-IMPLEMENTATION]
 * Enhanced UI for login, register, 2FA, and password reset pages
 */

/* ========================================
   AUTH PAGE LAYOUT
   ======================================== */
.auth-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

/* Decorative background pattern */
.auth-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 30%);
    pointer-events: none;
}

/* Floating shapes animation */
.auth-page::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(20px) rotate(10deg);
    }
}

.auth-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--vrc-spacing-lg);
    padding-top: 90px;
    position: relative;
    z-index: 1;
}

/* ========================================
   AUTH CARD
   ======================================== */
.auth-container {
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
}

.auth-card {
    background: rgba(255, 255, 255, 0.98);
    border-radius: var(--vrc-radius-2xl);
    padding: var(--vrc-spacing-2xl);
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    text-align: center;
}

/* ========================================
   AUTH ICON
   ======================================== */
.auth-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--vrc-spacing-lg);
    background: var(--vrc-gradient);
    border-radius: var(--vrc-radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--vrc-white);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.auth-icon svg {
    width: 40px;
    height: 40px;
}

/* ========================================
   AUTH TITLE & SUBTITLE
   ======================================== */
.auth-title {
    font-size: var(--vrc-font-size-2xl);
    font-weight: var(--vrc-font-weight-bold);
    color: var(--vrc-gray-900);
    margin-bottom: var(--vrc-spacing-sm);
}

.auth-subtitle {
    font-size: var(--vrc-font-size-sm);
    color: var(--vrc-gray-500);
    margin-bottom: var(--vrc-spacing-xl);
    line-height: var(--vrc-line-height-relaxed);
}

/* ========================================
   AUTH MESSAGES
   ======================================== */
.auth-error,
.auth-success {
    display: flex;
    align-items: center;
    gap: var(--vrc-spacing-sm);
    padding: var(--vrc-spacing-md);
    border-radius: var(--vrc-radius-lg);
    margin-bottom: var(--vrc-spacing-lg);
    font-size: var(--vrc-font-size-sm);
    font-weight: var(--vrc-font-weight-medium);
    text-align: left;
    animation: shake 0.4s ease-out;
}

.auth-error {
    background: var(--vrc-error-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.auth-success {
    background: var(--vrc-success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.auth-error svg,
.auth-success svg {
    flex-shrink: 0;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

/* ========================================
   AUTH FORM STYLES
   ======================================== */
.auth-form {
    text-align: left;
}

.auth-form-group {
    margin-bottom: var(--vrc-spacing-lg);
}

.auth-label {
    display: block;
    font-size: var(--vrc-font-size-sm);
    font-weight: var(--vrc-font-weight-semibold);
    color: var(--vrc-gray-700);
    margin-bottom: var(--vrc-spacing-sm);
}

.auth-input {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: var(--vrc-font-size-base);
    font-family: inherit;
    color: var(--vrc-gray-900);
    background: var(--vrc-gray-50);
    border: 2px solid var(--vrc-gray-200);
    border-radius: var(--vrc-radius-lg);
    transition: all var(--vrc-transition-normal);
}

.auth-input:hover {
    border-color: var(--vrc-gray-300);
}

.auth-input:focus {
    outline: none;
    background: var(--vrc-white);
    border-color: var(--vrc-primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.auth-input::placeholder {
    color: var(--vrc-gray-400);
}

/* Input with icon */
.auth-input-wrapper {
    position: relative;
}

.auth-input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--vrc-gray-400);
    pointer-events: none;
    transition: color var(--vrc-transition-fast);
}

.auth-input-wrapper .auth-input {
    padding-left: 2.75rem;
}

.auth-input-wrapper:focus-within .auth-input-icon {
    color: var(--vrc-primary);
}

/* Password visibility toggle */
.auth-input-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--vrc-gray-400);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--vrc-transition-fast);
}

.auth-input-toggle:hover {
    color: var(--vrc-gray-600);
}

/* ========================================
   AUTH BUTTON
   ======================================== */
.auth-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: var(--vrc-font-size-base);
    font-weight: var(--vrc-font-weight-semibold);
    color: var(--vrc-white);
    background: var(--vrc-gradient);
    border: none;
    border-radius: var(--vrc-radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--vrc-spacing-sm);
    transition: all var(--vrc-transition-normal);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.35);
    position: relative;
    overflow: hidden;
}

.auth-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s ease;
}

.auth-btn:hover::before {
    left: 100%;
}

.auth-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.45);
}

.auth-btn:active:not(:disabled) {
    transform: translateY(0);
}

.auth-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-btn:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.3);
}

/* Secondary auth button */
.auth-btn-secondary {
    background: var(--vrc-white);
    color: var(--vrc-gray-700);
    border: 2px solid var(--vrc-gray-200);
    box-shadow: none;
}

.auth-btn-secondary:hover:not(:disabled) {
    border-color: var(--vrc-primary);
    color: var(--vrc-primary);
    box-shadow: none;
}

/* ========================================
   AUTH CHECKBOX
   ======================================== */
.auth-checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--vrc-spacing-sm);
    margin-bottom: var(--vrc-spacing-lg);
}

.auth-checkbox {
    width: 1.25rem;
    height: 1.25rem;
    accent-color: var(--vrc-primary);
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
}

.auth-checkbox-label {
    font-size: var(--vrc-font-size-sm);
    color: var(--vrc-gray-600);
    line-height: var(--vrc-line-height-normal);
}

.auth-checkbox-label a {
    color: var(--vrc-primary);
    font-weight: var(--vrc-font-weight-medium);
}

/* ========================================
   AUTH LINKS
   ======================================== */
.auth-links {
    margin-top: var(--vrc-spacing-xl);
    padding-top: var(--vrc-spacing-lg);
    border-top: 1px solid var(--vrc-gray-200);
    text-align: center;
}

.auth-link {
    display: inline-flex;
    align-items: center;
    gap: var(--vrc-spacing-xs);
    font-size: var(--vrc-font-size-sm);
    color: var(--vrc-gray-600);
    transition: color var(--vrc-transition-fast);
}

.auth-link a {
    color: var(--vrc-primary);
    font-weight: var(--vrc-font-weight-semibold);
}

.auth-link a:hover {
    text-decoration: underline;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: var(--vrc-spacing-lg) 0;
    color: var(--vrc-gray-400);
    font-size: var(--vrc-font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--vrc-gray-200);
}

.auth-divider span {
    padding: 0 var(--vrc-spacing-md);
}

/* ========================================
   2FA SPECIFIC STYLES
   ======================================== */
.auth-2fa-code {
    display: flex;
    gap: var(--vrc-spacing-sm);
    justify-content: center;
    margin-bottom: var(--vrc-spacing-xl);
}

.auth-2fa-digit {
    width: 3rem;
    height: 3.5rem;
    text-align: center;
    font-size: var(--vrc-font-size-xl);
    font-weight: var(--vrc-font-weight-bold);
    border: 2px solid var(--vrc-gray-200);
    border-radius: var(--vrc-radius-lg);
    background: var(--vrc-gray-50);
    transition: all var(--vrc-transition-fast);
}

.auth-2fa-digit:focus {
    outline: none;
    border-color: var(--vrc-primary);
    background: var(--vrc-white);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.auth-qr-container {
    background: var(--vrc-white);
    border-radius: var(--vrc-radius-xl);
    padding: var(--vrc-spacing-lg);
    margin: var(--vrc-spacing-lg) 0;
    display: inline-block;
    box-shadow: var(--vrc-shadow-md);
}

.auth-qr-container img {
    display: block;
    border-radius: var(--vrc-radius-md);
}

/* ========================================
   AUTH FOOTER
   ======================================== */
.auth-footer {
    margin-top: var(--vrc-spacing-2xl);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--vrc-font-size-sm);
}

.auth-footer a {
    color: rgba(255, 255, 255, 0.9);
}

.auth-footer a:hover {
    color: var(--vrc-white);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 480px) {
    .auth-main {
        padding: var(--vrc-spacing-md);
        padding-top: 80px;
    }

    .auth-card {
        padding: var(--vrc-spacing-lg);
    }

    .auth-icon {
        width: 64px;
        height: 64px;
    }

    .auth-icon svg {
        width: 32px;
        height: 32px;
    }

    .auth-title {
        font-size: var(--vrc-font-size-xl);
    }

    .auth-2fa-digit {
        width: 2.5rem;
        height: 3rem;
    }
}

/* ========================================
   REDUCED MOTION
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .auth-page::after {
        animation: none;
    }

    .auth-error,
    .auth-success {
        animation: none;
    }

    .auth-btn::before {
        display: none;
    }
}

/* ========================================
   FIX: Prevent horizontal scrollbar from
   decorative ::after pseudo-element
   ======================================== */
html:has(.auth-page) {
    overflow-x: hidden;
}