/* --- JE Fitness UI System --- */

:root {
    /* Color Palette */
    --primary-accent: var(--bs-primary);
    --primary-accent-dark: var(--bs-primary-text-emphasis);
    --gradient-purple-start: var(--bs-primary);
    --gradient-purple-end: var(--bs-purple);
    --gradient-primary: linear-gradient(135deg, var(--gradient-purple-start), var(--gradient-purple-end));

    /* Backgrounds */
    --bg-main: var(--bs-gray-900);
    --bg-secondary: var(--bs-gray-800);
    --bg-card: var(--bs-gray-700);
    --bg-input: var(--bs-secondary-bg-subtle);

    /* Text */
    --text-primary: var(--bs-white);
    --text-muted: var(--bs-gray-600);
    --text-on-accent: var(--bs-dark);

    /* Spacing & Borders */
    --border-radius-lg: var(--bs-border-radius-xl);
    --border-radius-md: var(--bs-border-radius-lg);
    --border-color: var(--bs-border-color);
    --transition-base: all 0.3s ease;
}

/* --- Base Reset --- */
body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* --- Shared Layout Classes --- */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.max-w-600 { max-width: 600px; }

.py-6 {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.mb-6 {
    margin-bottom: 4rem;
}

.section-spacing {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.sticky-top-header {
    position: sticky;
    top: 20px;
}

.sticky-top-navbar-offset {
    position: sticky;
    top: 100px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
}

.accent { color: var(--primary-accent); }
.text-gradient {
    background: linear-gradient(135deg, var(--primary-accent), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- Navbar --- */
.navbar {
    background: var(--gradient-primary) !important;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: #fff !important;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    font-weight: 500;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #fff !important;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

/* --- Components: Cards --- */
.card, .ui-card {
    background-color: var(--bg-card) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    border-radius: var(--border-radius-lg);
    transition: var(--transition-base);
    color: var(--text-primary);
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 210, 255, 0.3) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.card-header.bg-gradient {
    background: var(--gradient-primary) !important;
    border-bottom: none;
}

/* --- Components: Buttons --- */
.btn-primary {
    background-color: var(--primary-accent) !important;
    border: none !important;
    color: var(--text-on-accent) !important;
    font-weight: 700;
    border-radius: 50px;
    padding: 10px 25px;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background-color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 210, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
    transition: transform 0.1s ease;
}

/* Ripple Effect */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::before {
    width: 300px;
    height: 300px;
}

/* Loading Spinner */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Fade In/Out for Loading States */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

.fade-out {
    animation: fadeOut 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

.btn-outline-info {
    border-color: var(--primary-accent);
    color: var(--primary-accent);
    border-radius: 50px;
}

.btn-outline-info:hover {
    background-color: var(--primary-accent);
    color: var(--text-on-accent);
}

/* --- Components: Forms --- */
.form-control, .form-select {
    background-color: var(--bg-secondary) !important;
    border: 2px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    font-weight: 500;
    border-radius: var(--border-radius-md);
    padding: 0.75rem 1rem;
    transition: var(--transition-base);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-card) !important;
    border-color: var(--primary-accent) !important;
    box-shadow: 0 0 0 0.3rem rgba(0, 210, 255, 0.25) !important;
    color: var(--text-primary) !important;
    transform: scale(1.01);
}

/* Improved visibility and contrast for trainer dropdown, time slot dropdown, and notes textarea */
#trainerSelect, #appointmentTime, #appointmentNotes,
#editTrainerSelect, #editAppointmentTime, #editAppointmentNotes {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border: 2px solid var(--border-color) !important;
    font-weight: 500;
}

#trainerSelect:focus, #appointmentTime:focus, #appointmentNotes:focus,
#editTrainerSelect:focus, #editAppointmentTime:focus, #editAppointmentNotes:focus {
    background-color: var(--bg-card) !important;
    border-color: var(--primary-accent) !important;
    box-shadow: 0 0 0 0.3rem rgba(0, 210, 255, 0.25) !important;
    color: var(--text-primary) !important;
}

/* Ensure dropdown options have good contrast */
#trainerSelect option, #appointmentTime option,
#editTrainerSelect option, #editAppointmentTime option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

/* --- Trainer Specific --- */
.trainer-image-circle {
    width: 120px;
    height: 120px;
    object-fit: cover;
}

/* --- Checkout Specific --- */
.progress-step-circle {
    width: 50px;
    height: 50px;
}

.progress-connector {
    height: 2px;
}

.progress-connector-active { background: var(--gradient-purple-start); }
.progress-connector-inactive { background: #dee2e6; }

/* --- Admin Specific (from style blocks) --- */
.admin-stats-card {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
}

.admin-stats-icon {
    font-size: 2.5rem;
}

/* --- Trainer Specific (Modernized) --- */
.trainer-modern-card {
    background-color: var(--bg-card) !important;
    border: 1px solid rgba(255, 255, 255, 0.05) !important;
    border-radius: 24px !important;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.trainer-modern-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--primary-accent) !important;
}

.trainer-modern-image {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border: 4px solid var(--bg-secondary);
}

.status-indicator {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid var(--bg-card);
}

.status-indicator.online { background-color: #10b981; }

/* Appointment Section */
.appointment-section-card {
    background-color: var(--bg-card) !important;
    border-radius: 24px !important;
    overflow: hidden;
}

.custom-appointment-table thead th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 800;
    color: var(--text-muted);
    padding: 1.25rem 1rem;
    border: none;
}

.custom-appointment-table tbody td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.appointment-status-badge {
    padding: 6px 12px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: capitalize;
}

.status-scheduled { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.status-pending { background: rgba(245, 158, 11, 0.1); color: #f59e0b; }
.status-cancelled { background: rgba(239, 68, 68, 0.1); color: #ef4444; }

/* Contact Section */
.contact-section {
    background-color: var(--bg-secondary);
}

.contact-form {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.contact-form .btn-primary {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
    font-weight: bold;
}

.contact-form .btn-primary:hover {
    background-color: #fff;
    border-color: #fff;
    color: var(--primary-accent);
}

/* Responsive Design for Trainers */
@media (min-width: 992px) {
    .trainer-card {
        flex-direction: row;
        text-align: left;
    }

    .trainer-image {
        margin-right: 20px;
        margin-bottom: 0;
    }
}

/* --- Utility Classes --- */
.bg-secondary-dark { background-color: var(--bg-secondary) !important; }
.z-index-11 { z-index: 11; }
.cursor-pointer { cursor: pointer; }
.max-w-600 { max-width: 600px; }
.max-w-120 { max-width: 120px; }
.max-w-80 { max-width: 80px; }
.hidden-state { display: none; }

/* Cookie Banner */
.cookie-consent-banner {
    background-color: var(--bg-card);
    border-top: 2px solid var(--primary-accent);
    color: #fff;
    padding: 15px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
    z-index: 1000;
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

/* --- Login and Signup Pages --- */
.login-page, .signup-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-main) 0%, var(--bg-secondary) 100%);
}

.login-container, .signup-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
}

.login-form, .signup-form, .otp-form {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 450px;
    width: 100%;
    transition: var(--transition-base);
}

.login-form:hover, .signup-form:hover, .otp-form:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.login-form h2, .signup-form h2, .otp-form h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.75rem;
}

.login-form .form-label, .signup-form .form-label, .otp-form .form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.login-form .form-control, .signup-form .form-control, .otp-form .form-control {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    transition: var(--transition-base);
}

.login-form .form-control:focus, .signup-form .form-control:focus, .otp-form .form-control:focus {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 0.25rem rgba(0, 210, 255, 0.15);
    color: var(--text-primary);
}

.btn-login, .btn-signup {
    background: var(--gradient-primary);
    border: none;
    color: var(--text-on-accent);
    font-weight: 700;
    border-radius: 50px;
    padding: 12px 30px;
    width: 100%;
    transition: var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-login:hover, .btn-signup:hover {
    background: linear-gradient(135deg, #fff, var(--primary-accent));
    color: var(--text-on-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 210, 255, 0.4);
}

#password-requirements {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    margin-top: 0.5rem;
}

#password-requirements ul li {
    margin-bottom: 0.25rem;
}

#password-requirements ul li.text-success {
    color: #28a745 !important;
}

#otp-container {
    margin-top: 2rem;
}

#otp-message {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

#message {
    color: var(--text-primary);
    font-weight: 500;
}

/* Terms Modal Styling */
#termsModal .modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

#termsModal .modal-header {
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

#termsModal .modal-title {
    font-weight: 700;
    color: var(--text-primary);
}

#termsModal .btn-close {
    filter: invert(1);
}

#termsModal .nav-tabs {
    border-bottom: 1px solid var(--border-color);
}

#termsModal .nav-tabs .nav-link {
    color: var(--text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    font-weight: 500;
}

#termsModal .nav-tabs .nav-link.active {
    color: var(--primary-accent);
    border-bottom-color: var(--primary-accent);
    background-color: transparent;
}

#termsModal .nav-tabs .nav-link:hover {
    color: var(--text-primary);
}

#termsModal .terms-section {
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

#termsModal .terms-section h6 {
    color: var(--primary-accent);
}

#termsModal .terms-section p,
#termsModal .terms-section li {
    color: var(--text-primary);
    line-height: 1.6;
}

#termsModal .alert-sm {
    padding: 0.5rem 0.75rem !important;
    margin-bottom: 0.5rem !important;
    font-size: 0.875rem;
}

#termsModal .modal-footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

/* Agreement checkbox styling */
.form-check {
    padding-left: 1.5rem;
}

.form-check-input {
    width: 1.25em;
    height: 1.25em;
    margin-top: 0.25em;
    accent-color: var(--primary-accent);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.form-check-input:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 0.25rem rgba(0, 210, 255, 0.15);
}

.form-check-input.is-invalid {
    border-color: #dc3545;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

.form-check-label a {
    text-decoration: none;
}

.form-check-label a:hover {
    text-decoration: underline;
}

/* Medical Documents Upload Styling */
.medical-upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    background-color: rgba(0, 210, 255, 0.05);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-base);
}

.medical-upload-zone:hover,
.medical-upload-zone.dragover {
    border-color: var(--primary-accent);
    background-color: rgba(0, 210, 255, 0.1);
    box-shadow: 0 4px 12px rgba(0, 210, 255, 0.15);
}

.medical-file-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    margin-bottom: 0.75rem;
    transition: var(--transition-base);
}

.medical-file-item:hover {
    background-color: var(--bg-card);
    border-color: var(--primary-accent);
}

.medical-file-icon {
    font-size: 1.5rem;
    margin-right: 1rem;
    color: var(--primary-accent);
    min-width: 40px;
}

.medical-file-info {
    flex: 1;
}

.medical-file-name {
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-word;
}

.medical-file-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.medical-file-actions {
    display: flex;
    gap: 0.5rem;
}

.medical-file-actions button {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

.medical-file-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 120px;
}

.medical-file-status.uploading {
    color: var(--primary-accent);
}

.medical-file-status.success {
    color: #28a745;
}

.medical-file-status.error {
    color: #dc3545;
}

.medical-upload-spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(0, 210, 255, 0.3);
    border-top: 2px solid var(--primary-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Payment Modal Enhancements for Maximum Visibility */
#paymentModal .modal-dialog {
    max-width: 600px;
    margin: 2rem auto;
}

#paymentModal .modal-content {
    background-color: var(--bg-card);
    border: 2px solid var(--primary-accent);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 210, 255, 0.3);
    backdrop-filter: blur(10px);
}

#paymentModal .modal-backdrop {
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

#paymentModal .modal-header {
    background: var(--gradient-primary);
    border-bottom: 2px solid var(--primary-accent);
    padding: 1.5rem 2rem;
}

#paymentModal .modal-title {
    color: var(--text-on-accent);
    font-weight: 700;
    font-size: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

#paymentModal .btn-close {
    filter: invert(1);
    opacity: 0.8;
}

#paymentModal .btn-close:hover {
    opacity: 1;
}

#paymentModal .modal-body {
    padding: 2rem;
    background-color: var(--bg-card);
}

#paymentModal .form-label {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

#paymentModal .form-control {
    background-color: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition-base);
}

#paymentModal .form-control:focus {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 0.3rem rgba(0, 210, 255, 0.25);
    color: var(--text-primary);
    transform: scale(1.02);
}

#paymentModal #cardElement {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0.75rem;
    background-color: var(--bg-input);
    transition: var(--transition-base);
    position: relative;
    min-height: 40px;
    cursor: text;
}

#paymentModal #cardElement.StripeElement--focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 0.3rem rgba(0, 210, 255, 0.25);
}

#paymentModal #cardElement .StripeElement {
    padding: 0.5rem 0;
    cursor: text;
    pointer-events: auto !important;
}

#paymentModal #cardElement iframe {
    pointer-events: auto !important;
}

#paymentModal .d-grid .btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: var(--text-on-accent);
    font-weight: 700;
    font-size: 1.1rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.4);
    transition: var(--transition-base);
}

#paymentModal .d-grid .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 210, 255, 0.6);
    background: linear-gradient(135deg, #fff, var(--primary-accent));
    color: var(--text-on-accent);
}

#paymentModal .d-grid .btn-primary:active {
    transform: translateY(0) scale(0.98);
}

/* Animation for modal appearance */
#paymentModal.fade .modal-dialog {
    animation: modalZoomIn 0.3s ease-out;
}

@keyframes modalZoomIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(-50px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Enhanced card errors styling */
#paymentModal #cardErrors {
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    border-radius: var(--border-radius-md);
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
    color: #dc3545;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 576px) {
    .login-form, .signup-form, .otp-form {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }

    .login-form h2, .signup-form h2, .otp-form h2 {
        font-size: 1.5rem;
    }

    #termsModal .modal-dialog {
        margin: 0.5rem;
    }

    #termsModal .terms-section {
        max-height: 300px;
    }

    .medical-file-item {
        flex-wrap: wrap;
    }

    .medical-file-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 0.75rem;
    }

    .medical-upload-zone {
        padding: 1.5rem;
    }

    /* Payment Modal Mobile Enhancements */
    #paymentModal .modal-dialog {
        margin: 1rem;
        max-width: calc(100vw - 2rem);
    }

    #paymentModal .modal-header,
    #paymentModal .modal-body {
        padding: 1.5rem;
    }

    #paymentModal .modal-title {
        font-size: 1.25rem;
    }
}