/**
 * CONVERGE 2026 Registration Form Styles
 * Theme: PGDAV Green (#0d5c4b) with Gold Accents (#d4af37)
 */

/* ===== CSS Custom Properties ===== */
:root {
    --pgdav-green: #0d5c4b;
    --pgdav-green-dark: #094238;
    --pgdav-green-light: #0f7a64;
    --gold: #d4af37;
    --gold-light: #e6c555;
    --gold-dark: #b8962e;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    min-height: 100vh;
    color: var(--text-dark);
}

/* ===== Header Styles ===== */
.main-header {
    background: linear-gradient(135deg, var(--pgdav-green) 0%, var(--pgdav-green-dark) 100%);
    color: var(--white);
    padding: 0;
    box-shadow: var(--shadow-lg);
}

.header-content {
    padding: 1.5rem 0;
}

.event-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: 0.5rem;
}

.event-title span {
    color: var(--gold);
}

.event-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

.header-logo {
    max-height: 80px;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.3));
}

/* ===== Marquee Styles ===== */
.marquee-container {
    background: var(--gold);
    color: var(--pgdav-green-dark);
    padding: 0.5rem 0;
    font-weight: 600;
    overflow: hidden;
}

.marquee-text {
    display: inline-block;
    white-space: nowrap;
    animation: marquee 20s linear infinite;
}

@keyframes marquee {
    0% {
        transform: translateX(100%);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* ===== Navigation Styles ===== */
.navbar {
    background: var(--pgdav-green-dark) !important;
    padding: 0.8rem 0;
}

.navbar-brand {
    color: var(--gold) !important;
    font-weight: 700;
    font-size: 1.3rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
    border-radius: 4px;
    margin: 0 0.2rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--gold) !important;
    background: rgba(255, 255, 255, 0.1);
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.5);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== Form Card Styles ===== */
.form-section {
    padding: 3rem 0;
}

.form-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: none;
}

.form-card-header {
    background: linear-gradient(135deg, var(--pgdav-green) 0%, var(--pgdav-green-light) 100%);
    color: var(--white);
    padding: 1.5rem 2rem;
    text-align: center;
}

.form-card-header h2 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-card-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.95rem;
}

.form-card-body {
    padding: 2rem;
}

/* ===== Form Control Styles ===== */
.form-label {
    font-weight: 600;
    color: var(--pgdav-green);
    margin-bottom: 0.5rem;
}

.form-label .required {
    color: #dc3545;
}

.form-control,
.form-select {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--pgdav-green);
    box-shadow: 0 0 0 3px rgba(13, 92, 75, 0.15);
}

.form-control::placeholder {
    color: #adb5bd;
}

.input-group-text {
    background: var(--light-gray);
    border: 2px solid #e0e0e0;
    border-right: none;
    color: var(--pgdav-green);
}

.input-group .form-control {
    border-left: none;
}

.input-group .form-control:focus {
    border-left: none;
}

.input-group:focus-within .input-group-text {
    border-color: var(--pgdav-green);
}

/* ===== File Upload Styles ===== */
.file-upload-wrapper {
    position: relative;
}

.file-upload-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.form-control[type="file"] {
    padding: 0.5rem;
}

.form-control[type="file"]::file-selector-button {
    background: var(--pgdav-green);
    color: var(--white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    margin-right: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.form-control[type="file"]::file-selector-button:hover {
    background: var(--pgdav-green-dark);
}

/* ===== Button Styles ===== */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--pgdav-green) 0%, var(--pgdav-green-light) 100%);
    border: none;
    color: var(--white);
    padding: 0.85rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-primary-custom:hover {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    color: var(--pgdav-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-reset-custom {
    background: transparent;
    border: 2px solid var(--pgdav-green);
    color: var(--pgdav-green);
    padding: 0.85rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
}

.btn-reset-custom:hover {
    background: var(--pgdav-green);
    color: var(--white);
}

/* ===== Alert Styles ===== */
.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

/* ===== Footer Styles ===== */
.main-footer {
    background: linear-gradient(135deg, var(--pgdav-green-dark) 0%, var(--pgdav-green) 100%);
    color: var(--white);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-heading {
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    margin-bottom: 0.5rem;
}

.footer-link:hover {
    color: var(--gold);
    transform: translateX(5px);
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    margin-right: 0.5rem;
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--gold);
    color: var(--pgdav-green-dark);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    margin-top: 2rem;
}

.footer-bottom p {
    margin: 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* ===== Responsive Styles ===== */
@media (max-width: 768px) {
    .event-title {
        font-size: 1.8rem;
    }
    
    .event-subtitle {
        font-size: 0.95rem;
    }
    
    .header-content {
        text-align: center;
    }
    
    .header-logo {
        max-height: 60px;
        margin-bottom: 1rem;
    }
    
    .form-card-body {
        padding: 1.5rem;
    }
    
    .btn-primary-custom,
    .btn-reset-custom {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .footer-section {
        text-align: center;
        margin-bottom: 2rem;
    }
}

@media (max-width: 576px) {
    .event-title {
        font-size: 1.5rem;
    }
    
    .form-section {
        padding: 1.5rem 0;
    }
    
    .form-card-header {
        padding: 1rem 1.5rem;
    }
    
    .form-card-header h2 {
        font-size: 1.3rem;
    }
}

/* ===== Loading Spinner ===== */
.spinner-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.spinner-overlay.active {
    display: flex;
}

.spinner-box {
    background: var(--white);
    padding: 2rem 3rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.spinner-box .spinner-border {
    color: var(--pgdav-green);
    width: 3rem;
    height: 3rem;
}

.spinner-box p {
    margin-top: 1rem;
    color: var(--pgdav-green);
    font-weight: 600;
}

/* ===== Validation Styles ===== */
.was-validated .form-control:valid,
.form-control.is-valid {
    border-color: #198754;
}

.was-validated .form-control:invalid,
.form-control.is-invalid {
    border-color: #dc3545;
}

.invalid-feedback {
    font-size: 0.85rem;
}