/* © 2025 Spwig. All rights reserved. */

/* =============================================
   ENTRANCE PAGES (Login / Signup / Logout)
   =============================================
   Modern authentication pages with gradient
   background and theme token integration.
   CSP-compliant, no inline styles.
   ============================================= */

/* --- Page Container --- */

.entrance-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--theme-color-primary) 0%, #7b45dd 50%, #f411c7 100%);
    position: relative;
    overflow: hidden;
    padding: var(--theme-space-4);
}

/* --- Animated Background Gradient --- */

.entrance-background {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(ellipse at 0% 50%, rgba(37, 99, 235, 0.6) 0%, transparent 60%),
        radial-gradient(ellipse at 100% 50%, rgba(244, 17, 199, 0.5) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 100%, rgba(123, 69, 221, 0.5) 0%, transparent 60%),
        linear-gradient(135deg, var(--theme-color-primary) 0%, #7b45dd 50%, #f411c7 100%);
    background-size: 200% 200%, 200% 200%, 200% 200%, 100% 100%;
    animation: mesh-shift 30s ease-in-out infinite, mesh-rotate 60s linear infinite;
    z-index: 0;
}

@keyframes mesh-shift {
    0%, 100% { background-position: 0% 50%, 100% 50%, 50% 100%, 0% 0%; }
    33%      { background-position: 100% 0%, 0% 100%, 50% 0%, 0% 0%; }
    66%      { background-position: 50% 100%, 50% 0%, 0% 50%, 0% 0%; }
}

@keyframes mesh-rotate {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* --- Content Container --- */

.entrance-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
}

/* --- Glassmorphism Card --- */

.entrance-card {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--theme-radius-xl);
    padding: var(--theme-space-8);
    box-shadow: var(--theme-shadow-xl);
}

/* --- Header --- */

.entrance-header {
    text-align: center;
    margin-bottom: var(--theme-space-8);
}

.entrance-logo {
    max-width: 160px;
    height: auto;
    margin: 0 auto var(--theme-space-6);
    display: block;
}

.entrance-title {
    font-size: var(--theme-font-size-2xl);
    font-weight: var(--theme-font-weight-bold);
    color: var(--theme-color-text-inverse);
    margin: 0 0 var(--theme-space-2);
}

.entrance-subtitle {
    font-size: var(--theme-font-size-base);
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* --- Alert Messages --- */

.entrance-alert {
    padding: var(--theme-element-alert-padding);
    border-radius: var(--theme-element-alert-radius);
    margin-bottom: var(--theme-space-6);
    display: flex;
    align-items: flex-start;
    gap: var(--theme-element-alert-gap);
    font-size: var(--theme-element-alert-font-size);
    font-weight: var(--theme-element-alert-font-weight);
}

.entrance-alert i {
    font-size: var(--theme-element-alert-icon-size);
    flex-shrink: 0;
}

.entrance-alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ffb4b4;
}

.entrance-alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #a7f3d0;
}

.entrance-alert-info {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #bfdbfe;
}

/* --- Form --- */

.entrance-form {
    margin-bottom: var(--theme-space-6);
}

.entrance-field {
    margin-bottom: var(--theme-space-5);
}

.entrance-label {
    display: flex;
    align-items: center;
    gap: var(--theme-space-2);
    font-size: var(--theme-element-form-label-size);
    font-weight: var(--theme-font-weight-medium);
    color: var(--theme-color-text-inverse);
    margin-bottom: var(--theme-space-2);
}

.entrance-label i {
    font-size: var(--theme-font-size-sm);
    opacity: 0.8;
}

.entrance-input-wrapper {
    position: relative;
}

.entrance-input-wrapper input {
    width: 100%;
    padding: var(--theme-element-form-input-padding);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--theme-element-form-input-radius);
    color: var(--theme-color-text-inverse);
    font-size: var(--theme-font-size-base);
    font-family: var(--theme-font-family-body);
    transition: all var(--theme-transition-duration-base) var(--theme-transition-easing-default);
}

.entrance-input-wrapper input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.entrance-input-wrapper input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

/* Password Toggle Button */

.password-toggle {
    position: absolute;
    right: var(--theme-space-3);
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    padding: var(--theme-space-2);
    font-size: var(--theme-font-size-lg);
    line-height: 1;
    transition: color var(--theme-transition-duration-fast);
}

.password-toggle:hover {
    color: rgba(255, 255, 255, 0.9);
}

.password-toggle:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
    border-radius: var(--theme-radius-sm);
}

/* Field Error Messages */

.entrance-field-error {
    margin-top: var(--theme-space-2);
    font-size: var(--theme-font-size-sm);
    color: #ffb4b4;
}

/* Options Row (Remember Me + Forgot Password) */

.entrance-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--theme-space-6);
}

.entrance-remember {
    display: flex;
    align-items: center;
    gap: var(--theme-space-2);
    font-size: var(--theme-font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
}

.entrance-remember input[type="checkbox"] {
    width: var(--theme-element-form-checkbox-size);
    height: var(--theme-element-form-checkbox-size);
    cursor: pointer;
    accent-color: var(--theme-color-primary);
}

.entrance-link {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--theme-font-size-sm);
    text-decoration: underline;
    transition: opacity var(--theme-transition-duration-fast);
}

.entrance-link:hover {
    opacity: 0.8;
}

/* --- Submit Button --- */

.entrance-submit {
    width: 100%;
    padding: var(--theme-element-form-button-padding-y) var(--theme-element-form-button-padding-x);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--theme-element-form-button-radius);
    color: var(--theme-color-text-inverse);
    font-size: var(--theme-font-size-base);
    font-weight: var(--theme-font-weight-semibold);
    font-family: var(--theme-font-family-body);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--theme-space-2);
    transition: all var(--theme-transition-duration-base) var(--theme-transition-easing-default);
}

.entrance-submit:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.entrance-submit:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

.entrance-submit:disabled,
.entrance-submit-loading {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.entrance-submit-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* --- Divider --- */

.entrance-divider {
    position: relative;
    text-align: center;
    margin: var(--theme-space-8) 0;
    font-size: var(--theme-font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.entrance-divider::before,
.entrance-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: calc(50% - 2rem);
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

.entrance-divider::before {
    left: 0;
}

.entrance-divider::after {
    right: 0;
}

.entrance-divider span {
    background: rgba(255, 255, 255, 0.12);
    padding: 0 var(--theme-space-3);
    border-radius: var(--theme-radius-full);
}

/* --- Social Auth Buttons --- */

.entrance-social {
    margin-bottom: var(--theme-space-6);
}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--theme-space-3);
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--theme-space-3);
    padding: var(--theme-space-3) var(--theme-space-6);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--theme-radius-md);
    color: var(--theme-color-text-inverse);
    font-size: var(--theme-font-size-base);
    font-weight: var(--theme-font-weight-medium);
    font-family: var(--theme-font-family-body);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--theme-transition-duration-base) var(--theme-transition-easing-default);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.social-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

.social-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Subtle provider-specific hover colors */
.social-btn-google:hover {
    border-color: rgba(66, 133, 244, 0.5);
}

.social-btn-apple:hover {
    border-color: rgba(255, 255, 255, 0.6);
}

.social-btn-microsoft:hover {
    border-color: rgba(0, 120, 212, 0.5);
}

.social-btn-loading {
    opacity: 0.6;
    pointer-events: none;
}

/* --- Footer --- */

.entrance-footer {
    text-align: center;
    margin-top: var(--theme-space-6);
}

.entrance-footer-text {
    font-size: var(--theme-font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0 var(--theme-space-4);
}

.entrance-footer-text .entrance-link {
    font-weight: var(--theme-font-weight-medium);
    text-decoration: none;
}

.entrance-footer-text .entrance-link:hover {
    text-decoration: underline;
}

.entrance-footer-powered {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--theme-space-2);
    font-size: var(--theme-font-size-xs);
    color: rgba(255, 255, 255, 0.6);
}

.entrance-footer-powered-text {
    opacity: 0.8;
}

.entrance-footer-favicon {
    width: 16px;
    height: 16px;
    opacity: 0.8;
}

/* --- Responsive Design --- */

@media (max-width: 768px) {
    .entrance-page {
        padding: var(--theme-space-3);
    }

    .entrance-card {
        padding: var(--theme-space-6) var(--theme-space-4);
    }

    .entrance-header {
        margin-bottom: var(--theme-space-6);
    }

    .entrance-logo {
        max-width: 130px;
        margin-bottom: var(--theme-space-4);
    }

    .entrance-title {
        font-size: var(--theme-font-size-xl);
    }

    .entrance-subtitle {
        font-size: var(--theme-font-size-sm);
    }

    .social-btn {
        font-size: var(--theme-font-size-sm);
        padding: var(--theme-space-2) var(--theme-space-4);
    }

    .entrance-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--theme-space-3);
    }
}

@media (max-height: 700px) {
    .entrance-page {
        align-items: flex-start;
        padding-top: var(--theme-space-8);
        padding-bottom: var(--theme-space-8);
    }

    .entrance-logo {
        max-width: 120px;
        margin-bottom: var(--theme-space-3);
    }

    .entrance-header {
        margin-bottom: var(--theme-space-4);
    }

    .entrance-divider {
        margin: var(--theme-space-4) 0;
    }
}

/* --- Accessibility --- */

@media (prefers-reduced-motion: reduce) {
    .entrance-background {
        animation: none;
    }

    .entrance-card,
    .entrance-submit,
    .entrance-input-wrapper input,
    .social-btn,
    .password-toggle {
        transition: none;
    }
}

/* --- Dark Mode Support --- */

@media (prefers-color-scheme: dark) {
    .entrance-card {
        background: rgba(0, 0, 0, 0.25);
        backdrop-filter: blur(32px);
        -webkit-backdrop-filter: blur(32px);
    }

    .entrance-input-wrapper input {
        background: rgba(0, 0, 0, 0.15);
    }
}