/* ================================================
   BOOKIFY - IDENTITY PAGES STYLING
   Login, Signup, and Account Management Pages
   ================================================ */

:root {
    --color-primary: #FFD700;
    /* Yellow */
    --color-primary-hover: #E6C200;
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    --color-error: #EF4444;
    --color-success: #10B981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ================================================
   IDENTITY CONTAINER & LAYOUT
   ================================================ */

.identity-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--color-gray-50);
    padding: 40px 20px;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.identity-wrapper {
    width: 100%;
    max-width: 480px;
}

.identity-card,
.account-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
}

.account-card {
    max-width: 1000px;
    display: flex;
}

.card-side {
    flex: 0 0 40%;
    background: var(--color-black);
    color: var(--color-white);
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.card-side::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, rgba(255, 215, 0, 0.15), transparent 40%);
    pointer-events: none;
}

.card-side h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--color-white);
    line-height: 1.2;
}

.card-side p {
    font-size: 16px;
    color: var(--color-gray-400);
    line-height: 1.6;
    margin: 0;
}

.card-form {
    flex: 1;
    padding: 60px;
    display: flex;
    flex-direction: column;
}

/* ================================================
   HEADER & BRANDING
   ================================================ */

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
    justify-content: center;
}

.logo {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: var(--color-black);
}

.title {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-black);
    letter-spacing: -0.5px;
}

.identity-header {
    text-align: center;
    margin-bottom: 40px;
}

.identity-logo {
    display: inline-flex;
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    background: var(--color-primary);
    border-radius: 16px;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--color-black);
    box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

.identity-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.identity-subtitle {
    font-size: 16px;
    color: var(--color-gray-500);
    margin-bottom: 8px;
}

.identity-divider {
    height: 1px;
    background: var(--color-gray-200);
    margin: 32px 0;
}

/* ================================================
   FORM STYLING
   ================================================ */

.identity-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-floating {
    position: relative;
}

.form-floating>.form-control {
    height: 56px;
    padding: 24px 16px 8px;
}

.form-floating>label {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: 16px;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
    color: var(--color-gray-500);
    font-size: 15px;
}

.form-floating>.form-control:focus~label,
.form-floating>.form-control:not(:placeholder-shown)~label {
    opacity: 0.8;
    transform: scale(0.85) translateY(-10px) translateX(2px);
    color: var(--color-gray-900);
    font-weight: 600;
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    color: var(--color-gray-900);
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.1);
}

.form-control:hover {
    border-color: var(--color-gray-300);
}

.form-control.is-invalid {
    border-color: var(--color-error);
}

.invalid-feedback {
    font-size: 13px;
    color: var(--color-error);
    margin-top: 6px;
    font-weight: 500;
}

/* ================================================
   BUTTONS
   ================================================ */

.btn {
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.w-100 {
    width: 100%;
}

.btn-primary,
.btn-accent {
    background-color: var(--color-primary);
    color: var(--color-black);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    font-weight: 700;
    letter-spacing: 0.5px;
}

.btn-primary:hover,
.btn-accent:hover {
    background-color: var(--color-black);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
}

.btn-secondary:hover {
    background-color: var(--color-gray-200);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-gray-200);
    color: var(--color-gray-700);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-black);
    background-color: rgba(255, 215, 0, 0.05);
    transform: translateY(-1px);
}

/* ================================================
   LINKS & HELPERS
   ================================================ */

.identity-link {
    color: var(--color-gray-600);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    position: relative;
    padding-bottom: 2px;
}

.identity-link:hover {
    color: var(--color-black);
}

.identity-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

.identity-link:hover::after {
    width: 100%;
}

.forgot-password-link {
    text-align: right;
    margin-top: 8px;
}

.forgot-password-link a {
    font-size: 14px;
    color: var(--color-gray-500);
    text-decoration: none;
    font-weight: 500;
}

.forgot-password-link a:hover {
    color: var(--color-black);
    text-decoration: underline;
}

/* ================================================
   FOOTER LINKS
   ================================================ */

.identity-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-gray-200);
}

.identity-footer p {
    font-size: 15px;
    color: var(--color-gray-500);
}

/* ================================================
   EXTERNAL LOGIN
   ================================================ */

.external-login-divider {
    position: relative;
    margin: 32px 0;
    text-align: center;
}

.external-login-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--color-gray-200);
}

.external-login-divider span {
    background-color: var(--color-white);
    padding: 0 16px;
    color: var(--color-gray-500);
    font-size: 14px;
    position: relative;
    font-weight: 500;
}

.btn-external {
    width: 100%;
    padding: 14px;
    font-size: 15px;
    font-weight: 600;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    color: var(--color-gray-700);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.btn-external:hover {
    border-color: var(--color-gray-300);
    background-color: var(--color-gray-50);
    color: var(--color-black);
}

/* ================================================
   ALERTS
   ================================================ */

.alert {
    padding: 16px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    line-height: 1.5;
}

.alert-danger {
    background-color: #FEF2F2;
    color: #991B1B;
    border: 1px solid #FEE2E2;
}

.alert-success {
    background-color: #ECFDF5;
    color: #065F46;
    border: 1px solid #D1FAE5;
}

/* ================================================
   CHECKBOX
   ================================================ */

.form-check {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding-left: 0;
}

.form-check-input {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-300);
    border-radius: 6px;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-color: var(--color-white);
    position: relative;
    transition: all 0.2s;
    margin-top: 0;
    flex-shrink: 0;
}

.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form-check-input:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--color-black);
    font-size: 14px;
    font-weight: 800;
}

.form-check-input:hover {
    border-color: var(--color-primary);
}

.form-check-label {
    font-size: 14px;
    color: var(--color-gray-600);
    cursor: pointer;
    user-select: none;
}

/* Responsive */
@media (max-width: 768px) {
    .account-card {
        flex-direction: column;
    }

    .card-side {
        padding: 40px;
    }

    .card-form {
        padding: 40px 24px;
    }
}