@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --success: #10b981;
    --success-dark: #059669;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.6s ease-out;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

/* Main Content Grid */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 10px 30px var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    animation: fadeInUp 0.6s ease-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px var(--shadow);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-dark);
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
}

input[type="text"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.hint {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

.section-block {
    margin: 1.25rem 0;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    background: rgba(15, 23, 42, 0.35);
}

.section-block h3 {
    margin-bottom: 0.9rem;
    font-size: 1rem;
    color: #c7d2fe;
}

.height-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.height-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0;
}

.height-item input[type="checkbox"] {
    width: auto;
}

.height-item input[type="number"] {
    min-width: 70px;
    padding: 0.45rem 0.55rem;
    font-size: 0.9rem;
}

.cheatsheet-note {
    margin-top: 1.5rem;
    font-size: 0.74rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.cheatsheet-note p {
    margin-top: 0.35rem;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.btn {
    flex: 1;
    min-width: 150px;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-small {
    margin-top: 0.7rem;
    width: auto;
    min-width: unset;
    padding: 0.55rem 0.8rem;
    font-size: 0.82rem;
    border-radius: 0.55rem;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-icon {
    font-size: 1.2rem;
    position: relative;
    z-index: 1;
}

.btn span:not(.btn-icon) {
    position: relative;
    z-index: 1;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary) 0%, #7c3aed 100%);
    color: white;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-dark) 100%);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4);
}

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

/* Info Panel */
.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-dark);
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
}

.info-item:hover {
    background: var(--bg-card-hover);
}

.info-label {
    font-weight: 500;
    color: var(--text-secondary);
}

.info-value {
    font-weight: 600;
    color: var(--text-primary);
}

.status {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    background: var(--success);
    color: white;
    font-size: 0.9rem;
}

.status.working {
    background: var(--warning);
    animation: pulse 2s infinite;
}

.status.error {
    background: var(--danger);
}

/* Log Container */
.log-container {
    margin-top: 2rem;
}

.log-container h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.log-output {
    background: var(--bg-dark);
    border-radius: 0.5rem;
    padding: 1rem;
    max-height: 300px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
}

.log-output::-webkit-scrollbar {
    width: 8px;
}

.log-output::-webkit-scrollbar-track {
    background: var(--bg-card);
    border-radius: 4px;
}

.log-output::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

.log-entry {
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    border-left: 3px solid var(--primary);
    padding-left: 0.75rem;
    animation: slideInLeft 0.3s ease-out;
}

.log-entry.success {
    border-left-color: var(--success);
    color: var(--success);
}

.log-entry.error {
    border-left-color: var(--danger);
    color: var(--danger);
}

.log-entry.info {
    border-left-color: var(--primary);
    color: var(--text-secondary);
}

/* Folders List */
.folders-card {
    animation: fadeInUp 0.8s ease-out;
}

.folders-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.folder-item {
    background: var(--bg-dark);
    padding: 1rem;
    border-radius: 0.5rem;
    border: 2px solid var(--border);
    transition: all 0.3s ease;
    cursor: pointer;
    animation: scaleIn 0.3s ease-out;
}

.folder-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.2);
}

.folder-item .folder-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.folder-item .folder-name {
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-all;
}

.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    font-style: italic;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    header h1 {
        font-size: 2rem;
    }

    .card {
        padding: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .folders-list {
        grid-template-columns: 1fr;
    }

    .height-grid {
        grid-template-columns: 1fr;
    }
}