:root {
    --primary: #29B6F6;
    --primary-dark: #0288D1;
    --secondary: #7E57C2;
    --secondary-dark: #5E35B1;
    --accent: #BBDEFB;
    --deep-blue: #1565C0;
    --navy: #1A237E;
    --background: #121212;
    --surface: #1E1E1E;
    --surface-variant: #2D2D2D;
    --card-bg: rgba(26, 35, 126, 0.4);
    --text: #E3F2FD;
    --text-secondary: rgba(227, 242, 253, 0.7);
    --danger: #FF6B6B;
    --danger-dark: #D14545;
    --success: #36F1B3;
    --success-dark: #00C853;
    --transition: 400ms cubic-bezier(0.2, 0.8, 0.4, 1);
    --border-radius: 16px;
    --border-radius-sm: 12px;
    --elevation-1: 0 2px 8px rgba(0, 0, 0, 0.3);
    --elevation-2: 0 4px 16px rgba(0, 0, 0, 0.3);
    --elevation-3: 0 8px 24px rgba(0, 0, 0, 0.3);
}

html, body {
    background: var(--background);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

* {
    box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    position: relative;
    z-index: 10;
    gap: 1rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--elevation-1);
    flex-shrink: 0;
}

.logo-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text h1 {
    margin: 0;
    font-size: 1.4rem;
    background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 50%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.logo-text .app-version {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.header-actions {
    display: flex;
    gap: 0.8rem;
}

.header-action-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-variant);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: all var(--transition);
}

.header-action-btn:hover {
    background: var(--surface);
    transform: translateY(-2px);
    box-shadow: var(--elevation-1);
}

.header-action-btn svg {
    width: 24px;
    height: 24px;
}

.search-expanded {
    display: none;
    margin: 0.5rem 0 1.5rem;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-expanded .search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-expanded #searchInput {
    width: 100%;
    padding: 14px 52px 14px 16px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: var(--surface-variant);
    color: var(--text);
    font-size: 1rem;
    transition: all var(--transition);
    backdrop-filter: blur(10px);
}

.search-expanded #searchInput:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(41, 182, 246, 0.3);
    background: var(--surface);
}

.close-search {
    position: absolute;
    right: 12px;
    background: transparent;
    border: none;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
    transition: background var(--transition);
}

.close-search:hover {
    background: rgba(255, 255, 255, 0.1);
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.action-buttons > .action-btn {
    width: 100%;
}

.utility-buttons {
    display: flex;
    gap: 0.8rem;
    justify-content: flex-end;
}

.action-btn {
    flex: 1;
    min-width: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    background: var(--surface-variant);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition);
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: var(--elevation-2);
}

.action-btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--elevation-3);
}

.action-btn.icon-only {
    flex: 0 0 auto;
    width: 48px;
    min-width: auto;
    padding: 12px;
}

.action-btn.icon-only svg {
    width: 24px;
    height: 24px;
}

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

.action-btn:hover {
    background: var(--surface);
    transform: translateY(-2px);
    box-shadow: var(--elevation-1);
}

.action-btn.danger {
    background: rgba(255, 107, 107, 0.1);
    border-color: rgba(255, 107, 107, 0.2);
}

.action-btn.danger:hover {
    background: rgba(255, 107, 107, 0.2);
}

.button-text {
    white-space: nowrap;
}

.events-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
    max-height: 70vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) transparent;
    will-change: transform;
    contain: strict;
    -webkit-overflow-scrolling: touch;
}

.events-container::-webkit-scrollbar {
    width: 6px;
}

.events-container::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}

.event-card {
    background: linear-gradient(135deg, rgba(47, 29, 87, 0.8) 0%, rgba(26, 35, 126, 0.6) 100%);
    border-radius: var(--border-radius);
    overflow: hidden;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    transition: all var(--transition);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    will-change: transform, opacity;
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--elevation-3);
}

.event-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.event-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--accent);
}

.status-icon {
    width: 20px;
    height: 20px;
}

.status-future path {
    fill: var(--primary);
}

.status-past path {
    fill: var(--success);
}

.event-title-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.event-date {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: var(--border-radius-sm);
    background: rgba(26, 35, 126, 0.4);
    font-size: 0.9rem;
    white-space: nowrap;
}

.event-date svg {
    width: 16px;
    height: 16px;
}

.time-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
}

.time-unit {
    position: relative;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-sm);
    padding: 12px;
    text-align: center;
    overflow: hidden;
}

.time-unit::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 1;
}

.time-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.time-label {
    font-size: 0.8rem;
    opacity: 0.8;
}

.event-status {
    margin-top: -0.5rem;
}

.status-text {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
    display: inline-block;
}

.status-text.future {
    background: rgba(41, 182, 246, 0.1);
    color: var(--primary);
}

.status-text.past {
    background: rgba(54, 241, 179, 0.1);
    color: var(--success);
}

.event-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.edit-btn, .delete-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

.edit-btn:hover {
    background: rgba(41, 182, 246, 0.2);
}

.delete-btn:hover {
    background: rgba(255, 107, 107, 0.2);
}

.edit-btn svg, .delete-btn svg {
    width: 20px;
    height: 20px;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: linear-gradient(135deg, rgba(47, 29, 87, 0.9) 0%, rgba(26, 35, 126, 0.9) 100%);
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    position: relative;
    box-shadow: var(--elevation-3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.close-modal {
    background: transparent;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition);
}

.close-modal:hover {
    background: rgba(255, 255, 255, 0.1);
}

.close-modal svg {
    width: 24px;
    height: 24px;
}

.event-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: var(--accent);
}

.form-label svg {
    width: 20px;
    height: 20px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: var(--surface-variant);
    color: var(--text);
    font-size: 1rem;
    transition: all var(--transition);
}

.form-input-large {
    padding: 14px 16px;
    font-size: 1.1rem;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(41, 182, 246, 0.3);
}

.btn {
    padding: 14px 24px;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition);
    box-shadow: var(--elevation-2);
}

.btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--elevation-3);
}

.btn.danger {
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    box-shadow: var(--elevation-2);
}

.btn.danger:hover {
    box-shadow: var(--elevation-3);
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 1rem;
    opacity: 0.7;
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}

.empty-state p {
    margin: 0.5rem 0;
}

.app-info {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.9rem;
    opacity: 0.7;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    text-decoration: none;
    transition: opacity var(--transition);
}

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

.github-link svg {
    width: 20px;
    height: 20px;
}

.notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 14px 24px;
    border-radius: var(--border-radius-sm);
    background: var(--surface-variant);
    backdrop-filter: blur(10px);
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 2000;
    opacity: 0;
    transition: all var(--transition);
    box-shadow: var(--elevation-3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.notification.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.notification svg {
    width: 24px;
    height: 24px;
}

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.error {
    border-left: 4px solid var(--danger);
}

.confirmation-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.confirmation-modal.show {
    opacity: 1;
    visibility: visible;
}

.confirmation-modal .modal-content {
    background: var(--surface-variant);
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.modal-buttons .btn {
    min-width: 120px;
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    animation: float linear infinite;
}

@keyframes float {
    0% {
        transform: translateY(0) translateX(0) rotate(0deg);
    }
    100% {
        transform: translateY(-100vh) translateX(100px) rotate(360deg);
    }
}

.dynamic-island {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(38, 30, 71, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 100px;
    padding: 10px 24px;
    display: none;
    align-items: center;
    gap: 10px;
    z-index: 3000;
    border: 1px solid rgba(149, 117, 205, 0.5);
    cursor: pointer;
    transition: all var(--transition);
}

.dynamic-island:hover {
    transform: translateX(-50%) scale(1.05);
}

.island-text {
    font-weight: 500;
    color: white;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 768px) {
    .logo h1 {
        max-width: 140px;
        font-size: 1.2rem;
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
    }
    
    .header-action-btn {
        width: 40px;
        height: 40px;
    }
    
    .events-container {
        grid-template-columns: 1fr;
    }
    
    .action-btn {
        min-width: auto;
    }

    .time-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 769px) {
    .action-buttons {
        flex-direction: row;
        align-items: center;
    }
    
    .action-buttons > .action-btn {
        width: auto;
        flex: 1;
    }
    
    .utility-buttons {
        flex: 0;
    }
}