/* ================================================
   OlaLingo Campus - Activities Page Styles
   ================================================ */

.activities-page {
    background: var(--color-off-white);
}

.activities-main {
    padding-top: 72px;
}

/* Header */
.activities-header {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
    padding: var(--space-3xl) 0 var(--space-2xl);
    color: var(--color-white);
}

.header-content {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.page-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.page-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.page-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Week Navigation */
.week-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
}

.week-nav-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.week-nav-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.week-nav-btn svg {
    width: 20px;
    height: 20px;
}

.week-display {
    text-align: center;
    min-width: 200px;
}

.week-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.8;
    margin-bottom: var(--space-xs);
}

.week-dates {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Calendar Section */
.calendar-section {
    padding: var(--space-2xl) 0;
    position: relative;
}

/* Day Tabs (Mobile) */
.day-tabs {
    display: none;
    overflow-x: auto;
    gap: var(--space-sm);
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-lg);
    -webkit-overflow-scrolling: touch;
}

.day-tab {
    flex-shrink: 0;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-600);
    transition: all var(--transition-normal);
}

.day-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.day-tab.today {
    border-color: var(--color-accent);
}

/* Calendar Grid */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-md);
}

.calendar-day {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-normal);
}

.calendar-day:hover {
    box-shadow: var(--shadow-md);
}

.calendar-day.today {
    box-shadow: 0 0 0 2px var(--color-primary), var(--shadow-md);
}

.calendar-day.weekend {
    background: var(--color-gray-100);
}

.day-header {
    padding: var(--space-md);
    background: var(--color-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calendar-day.today .day-header {
    background: var(--color-primary);
    color: var(--color-white);
}

.day-name {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.day-date {
    font-size: 1.25rem;
    font-weight: 700;
}

.day-activities {
    flex: 1;
    padding: var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    overflow-y: auto;
}

/* Activity Item */
.activity-item {
    padding: var(--space-sm) var(--space-md);
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    border-left: 3px solid var(--color-primary);
}

.activity-item:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateX(4px);
}

.activity-item-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
}

.activity-item-emoji {
    font-size: 1rem;
}

.activity-item-time {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
}

.activity-item:hover .activity-item-time {
    color: rgba(255, 255, 255, 0.9);
}

.activity-item-title {
    font-size: 0.8125rem;
    font-weight: 500;
    line-height: 1.3;
}

/* Category Colors */
.activity-item[data-category="social"] { border-left-color: #10b981; }
.activity-item[data-category="tour"] { border-left-color: #3b82f6; }
.activity-item[data-category="games"] { border-left-color: #8b5cf6; }
.activity-item[data-category="sports"] { border-left-color: #ef4444; }
.activity-item[data-category="culture"] { border-left-color: #f59e0b; }
.activity-item[data-category="food"] { border-left-color: #ec4899; }
.activity-item[data-category="music"] { border-left-color: #06b6d4; }
.activity-item[data-category="party"] { border-left-color: #f97316; }
.activity-item[data-category="class"] { border-left-color: var(--color-primary); }
.activity-item[data-category="exchange"] { border-left-color: #6366f1; }

/* Empty Day */
.day-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-gray-400);
    font-size: 0.875rem;
    font-style: italic;
}

/* Loading State */
.calendar-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl);
    gap: var(--space-lg);
}

.calendar-loading.hidden {
    display: none;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

/* Empty State */
.calendar-empty {
    text-align: center;
    padding: var(--space-4xl);
}

.calendar-empty.hidden {
    display: none;
}

.calendar-empty .empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
}

.calendar-empty h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--space-sm);
}

.calendar-empty p {
    color: var(--color-gray-500);
}

/* Legend Section */
.legend-section {
    padding: var(--space-xl) 0;
    background: var(--color-white);
}

.legend-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-600);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.legend-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md) var(--space-xl);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.legend-emoji {
    font-size: 1.25rem;
}

.legend-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

/* CTA Section */
.activities-cta {
    padding: var(--space-2xl) 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    color: var(--color-white);
}

.cta-box h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.cta-box p {
    opacity: 0.9;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    z-index: 1;
}

.modal-close:hover {
    background: var(--color-gray-200);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

/* Modal Views */
.modal-view {
    display: block;
}

.modal-view.hidden {
    display: none;
}

.modal-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-xl);
    padding-right: var(--space-3xl);
    background: var(--color-gray-100);
}

.modal-header-form {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.modal-back {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    flex-shrink: 0;
}

.modal-back:hover {
    background: rgba(255, 255, 255, 0.3);
}

.modal-back svg {
    width: 20px;
    height: 20px;
    color: white;
}

.modal-emoji {
    font-size: 3rem;
    flex-shrink: 0;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-sm);
}

.modal-header-form .modal-title {
    color: white;
    font-size: 1.25rem;
}

.modal-activity-name {
    font-size: 0.9rem;
    opacity: 0.9;
}

.modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.modal-body {
    padding: var(--space-xl);
}

.modal-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
}

.modal-location {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.maps-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.maps-link:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.maps-icon {
    font-size: 1.1rem;
}

.modal-footer {
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
}

/* Registration Form Styles */
.register-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.register-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.register-form label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

.register-form input,
.register-form select,
.register-form textarea {
    padding: var(--space-md);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.register-form input:focus,
.register-form select:focus,
.register-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(1, 151, 137, 0.1);
}

.register-form textarea {
    resize: vertical;
    min-height: 60px;
}

.form-checkbox {
    flex-direction: row !important;
    align-items: flex-start;
    gap: var(--space-sm) !important;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    flex-shrink: 0;
}

.form-checkbox label {
    font-size: 0.8125rem;
    color: var(--color-gray-600);
    line-height: 1.4;
}

/* Success View */
.modal-success-body {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
}

.success-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    animation: bounce 1s ease-in-out;
}

@keyframes successBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.success-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-sm);
}

.success-text {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-bottom: var(--space-xl);
}

.success-details {
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    text-align: left;
}

.success-details p {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-gray-700);
    margin-bottom: var(--space-sm);
}

.success-details p:last-child {
    margin-bottom: 0;
}

/* Loading state for submit button */
.btn.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}

.btn.loading span {
    visibility: hidden;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Responsive */
@media (max-width: 1024px) {
    .calendar-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .calendar-day:nth-child(n+5) {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .day-tabs {
        display: flex;
    }
    
    .calendar-grid {
        display: block;
    }
    
    .calendar-day {
        display: none;
        min-height: 200px;
    }
    
    .calendar-day.active {
        display: flex;
    }
    
    .cta-box {
        flex-direction: column;
        text-align: center;
    }
    
    .week-nav {
        gap: var(--space-md);
    }
    
    .week-display {
        min-width: 150px;
    }
    
    .week-dates {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .legend-grid {
        justify-content: flex-start;
    }
    
    .modal-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .modal-meta {
        justify-content: center;
    }
}