* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-gradient-start: #f6f7fb;
    --bg-gradient-end: #ebeff7;
    --surface: #ffffff;
    --surface-muted: rgba(255, 255, 255, 0.68);
    --border-soft: rgba(30, 41, 59, 0.08);
    --border-strong: rgba(30, 41, 59, 0.14);
    --shadow-soft: 0 12px 32px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 24px 45px rgba(15, 23, 42, 0.12);
    --text-primary: #1f2937;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent: #5865f5;
    --accent-strong: #4654e8;
    --accent-soft: rgba(88, 101, 245, 0.14);
    --accent-bg: #eef0ff;
    --danger: #ef4444;
    --danger-soft: rgba(239, 68, 68, 0.12);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-secondary);
    background: linear-gradient(180deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    padding-bottom: 40px;
}

.container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 36px 24px 0;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    margin-bottom: 40px;
    padding: 28px 32px;
    background: var(--surface);
    border-radius: 28px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-soft);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.auth-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.hidden {
    display: none !important;
}

body:not(.authenticated) #newPromptBtn {
    display: none !important;
}

.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 2000;
    pointer-events: none;
}

.tag-suggestions {
    position: absolute;
    min-width: 220px;
    max-width: 320px;
    max-height: 220px;
    overflow-y: auto;
    background: var(--surface);
    border-radius: 14px;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.16);
    border: 1px solid var(--border-soft);
    padding: 6px 0;
    z-index: 1500;
    display: none;
}

.tag-suggestions.visible {
    display: block;
}

.tag-suggestion-item {
    padding: 8px 14px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: background 0.2s ease, color 0.2s ease;
}

.tag-suggestion-item:hover {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

.toast {
    min-width: 240px;
    padding: 14px 20px;
    border-radius: 18px;
    background: var(--surface);
    color: var(--text-secondary);
    font-weight: 600;
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.18);
    border: 1px solid var(--border-soft);
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 0.35s ease, transform 0.35s ease;
    pointer-events: auto;
}

.toast.visible {
    opacity: 1;
    transform: translateY(0);
}

.toast-success {
    background: rgba(22, 163, 74, 0.12);
    color: #166534;
    border-color: rgba(22, 163, 74, 0.28);
}

.toast-error {
    background: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
    border-color: rgba(239, 68, 68, 0.28);
}

h1 {
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
}

.search-bar {
    display: flex;
    gap: 14px;
    margin-bottom: 36px;
    padding: 24px 28px;
    background: var(--surface);
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-soft);
}

.search-bar input {
    flex: 1;
    padding: 14px 18px;
    border: 1px solid var(--border-soft);
    border-radius: 18px;
    font-size: 15px;
    background: #f9f9fc;
    transition: all 0.3s ease;
    outline: none;
}

.search-bar input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
    background: #ffffff;
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

/* Global button reset and base styles */
button {
    border: none !important;
    border-radius: 50px !important;
    background: none;
    padding: 0;
    margin: 0;
    font: inherit;
    cursor: pointer;
    outline: none;
}

.btn,
.btn-primary,
.btn-danger {
    padding: 14px 26px !important;
    border-radius: 999px !important;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.25s ease;
    outline: none !important;
    position: relative;
    overflow: hidden;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    white-space: nowrap;
    min-height: 46px;
    background: #f5f6ff !important;
    color: var(--text-secondary) !important;
    box-shadow: 0 10px 20px rgba(88, 101, 245, 0.08);
    border: 1px solid var(--border-soft) !important;
}

.btn[disabled] {
    cursor: not-allowed;
    opacity: 0.55;
    box-shadow: none;
}

.btn[disabled]:hover {
    transform: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 30px rgba(88, 101, 245, 0.24);
    background: #eef0ff !important;
    color: var(--accent-strong) !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%) !important;
    color: #ffffff !important;
    border: none !important;
    box-shadow: 0 16px 30px rgba(88, 101, 245, 0.28) !important;
}

.btn-primary:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 22px 38px rgba(88, 101, 245, 0.4) !important;
    background: linear-gradient(135deg, var(--accent-strong) 0%, #3f4bdd 100%) !important;
}

.btn-primary:active {
    transform: translateY(0) scale(0.97) !important;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: #ffffff;
    box-shadow: 0 14px 26px rgba(239, 68, 68, 0.32);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 34px rgba(239, 68, 68, 0.45);
    background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
}

.prompt-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.prompt-card {
    background: var(--surface);
    border-radius: 24px;
    cursor: pointer;
    transition: all 0.25s ease;
    border: 1px solid var(--border-soft);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.prompt-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, rgba(88, 101, 245, 0.7), rgba(111, 192, 255, 0.7), rgba(16, 185, 129, 0.7));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.prompt-card:hover::before {
    opacity: 1;
}

.prompt-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-soft);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 24px 24px 0 24px;
    margin-bottom: 16px;
}

.version-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-actions {
    display: flex;
    gap: 6px;
    opacity: 0.6;
    transform: translateY(-4px);
    transition: all 0.25s ease;
}

.prompt-card:hover .card-actions {
    opacity: 1;
    transform: translateY(0);
}

.action-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: var(--accent-soft);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.25s ease;
    box-shadow: 0 8px 16px rgba(88, 101, 245, 0.18);
    color: var(--accent-strong);
    border: 1px solid rgba(88, 101, 245, 0.18);
}

.action-btn:hover {
    transform: translateY(-2px) scale(1.06);
    box-shadow: 0 16px 28px rgba(88, 101, 245, 0.32);
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
    color: #ffffff;
}

.copy-btn:hover,
.edit-btn:hover,
.delete-btn:hover {
    opacity: 0.95;
}

.card-content {
    padding: 0 24px 24px 24px;
}

.prompt-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.prompt-tags {
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    background: #f3f4ff;
    color: var(--accent-strong);
    border-radius: 18px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid rgba(88, 101, 245, 0.2);
    transition: all 0.2s ease;
}

.tag:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-1px);
}

.prompt-content {
    color: var(--text-secondary);
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.6;
    font-size: 15px;
}

.prompt-meta {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Version badge styling */
.prompt-version {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    border-radius: 18px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid rgba(88, 101, 245, 0.28);
}

.prompt-versions-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: rgba(250, 204, 21, 0.16);
    color: #b45309;
    border-radius: 14px;
    font-size: 11px;
    font-weight: 600;
    border: 1px solid rgba(180, 83, 9, 0.18);
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(6px);
    animation: fadeIn 0.3s ease;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-content {
    background: var(--surface);
    margin: 3% auto;
    padding: 36px;
    border-radius: 28px;
    width: 92%;
    max-width: 880px;
    max-height: 85vh;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--border-soft);
    animation: slideUp 0.35s ease;
    display: flex;
    flex-direction: column;
}

.login-modal {
    max-width: 420px;
    padding: 32px;
    gap: 12px;
}

.login-modal h2 {
    margin-bottom: 12px;
    font-size: 1.8rem;
    color: #1e293b;
}

.modal-body {
    overflow-y: auto;
    flex: 1;
    padding-right: 8px;
    margin-right: -8px;
}

.close {
    color: var(--text-muted);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin: -10px -10px 0 0;
}

.close:hover {
    color: var(--accent-strong);
    background: var(--accent-soft);
    transform: scale(1.05);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 1px solid var(--border-soft);
    border-radius: 18px;
    font-size: 15px;
    background: #f7f8fe;
    transition: all 0.3s ease;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
    background: #ffffff;
}

.form-group textarea {
    resize: vertical;
    font-family: 'JetBrains Mono', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    line-height: 1.6;
    min-height: 200px;
    max-height: 400px;
}

.form-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(148, 163, 184, 0.16);
    flex-shrink: 0;
}

.version-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--surface);
    border-radius: 20px;
    border: 1px solid var(--border-soft);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.version-selector {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.version-selector label {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 15px;
    white-space: nowrap;
}

.version-dropdown {
    padding: 10px 16px;
    border: 1px solid var(--border-soft);
    border-radius: 14px;
    background: #f8f9ff;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    min-width: 120px;
}

.version-dropdown:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
}

.modal-actions-top {
    display: flex;
    gap: 8px;
}

.btn-small {
    padding: 8px 16px !important;
    font-size: 13px !important;
    min-height: 36px !important;
}

.copy-btn {
    background: var(--accent-soft) !important;
    color: var(--accent-strong) !important;
    border: 1px solid rgba(88, 101, 245, 0.24) !important;
}

.copy-btn:hover {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%) !important;
    color: #ffffff !important;
    border-color: transparent !important;
}

.edit-btn {
    background: rgba(250, 204, 21, 0.16) !important;
    color: #b45309 !important;
    border: 1px solid rgba(250, 204, 21, 0.3) !important;
}

.edit-btn:hover {
    background: linear-gradient(135deg, #facc15 0%, #f59e0b 100%) !important;
    color: #7c2d12 !important;
    border-color: transparent !important;
}

.delete-btn {
    background: var(--danger-soft) !important;
    color: var(--danger) !important;
    border: 1px solid rgba(239, 68, 68, 0.28) !important;
}

.delete-btn:hover {
    background: linear-gradient(135deg, #f87171 0%, #ef4444 100%) !important;
    color: #fff !important;
    border-color: transparent !important;
}

/* Preview styles for viewing prompts */
.preview {
    margin-top: 24px;
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border-soft);
    border-radius: 20px;
    box-shadow: 0 10px 32px rgba(15, 23, 42, 0.06);
}

.preview h1, .preview h2, .preview h3 {
    margin-bottom: 16px;
    color: #1e293b;
}

.preview p {
    margin-bottom: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

.preview code {
    background: var(--accent-soft);
    color: var(--accent-strong);
    padding: 3px 8px;
    border-radius: 8px;
    font-family: 'JetBrains Mono', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
}

.preview pre {
    background: #101828;
    color: #e2e8f0;
    padding: 20px;
    border-radius: 16px;
    overflow-x: auto;
    margin-bottom: 16px;
    border: 1px solid rgba(15, 23, 42, 0.4);
}

.preview pre code {
    background: none;
    color: inherit;
    padding: 0;
}

#modalTitle {
    color: #1e293b;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 12px;
}

.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
    background: var(--surface);
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-soft);
}

.empty-state h3 {
    margin-bottom: 12px;
    font-size: 1.45rem;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 16px;
}

@media (max-width: 768px) {
    .container {
        padding: 20px 16px;
    }

    header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 24px;
    }

    h1 {
        font-size: 2.5rem;
    }

    .search-bar {
        flex-direction: column;
        padding: 24px;
    }

    .prompt-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .prompt-card {
        margin: 0 8px;
    }

    .card-header {
        padding: 20px 20px 0 20px;
    }

    .card-content {
        padding: 0 20px 20px 20px;
    }

    .card-actions {
        opacity: 1;
        transform: translateY(0);
        gap: 4px;
    }

    .action-btn {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    .form-actions {
        flex-direction: column;
    }

    .modal-content {
        margin: 20px 10px;
        width: calc(100% - 20px);
        padding: 24px;
    }

    .version-controls {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }

    .version-selector {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    .prompt-card {
        margin: 0;
        border-radius: 16px;
    }

    .card-header {
        padding: 16px 16px 0 16px;
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .card-content {
        padding: 0 16px 16px 16px;
    }

    .card-actions {
        align-self: flex-end;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .modal-content {
        margin: 10px;
        padding: 20px;
    }

    .prompt-title {
        font-size: 1.2rem;
    }

    .version-info {
        width: 100%;
    }
}

/* Loading animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 2s infinite;
}

/* Scroll animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.prompt-card {
    animation: slideInUp 0.6s ease forwards;
}

.prompt-card:nth-child(1) { animation-delay: 0.1s; }
.prompt-card:nth-child(2) { animation-delay: 0.2s; }
.prompt-card:nth-child(3) { animation-delay: 0.3s; }
.prompt-card:nth-child(4) { animation-delay: 0.4s; }
.prompt-card:nth-child(5) { animation-delay: 0.5s; }
.prompt-card:nth-child(6) { animation-delay: 0.6s; }

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%);
}

/* Floating elements effect */
.prompt-card, .search-bar, header {
    will-change: transform;
}

/* Enhanced focus states */
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #8b5cf6;
    outline-offset: 2px;
}

/* Selection styling */
::selection {
    background: rgba(139, 92, 246, 0.2);
    color: #1e293b;
}