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

:root {
    --bg-main: #06110d;
    --bg-secondary: #0d1e17;
    --bg-tertiary: #142820;
    --text-primary: #f0fdf4;
    --text-secondary: #82a998;
    --accent-color: #10b981;
    --accent-hover: #059669;
    --danger-color: #ef4444;
    --success-color: #34d399;
    --border-color: rgba(16, 185, 129, 0.14);
    --glass-bg: rgba(13, 30, 23, 0.78);
    --glass-border: rgba(52, 211, 153, 0.2);
    --shadow: 0 10px 35px 0 rgba(0, 0, 0, 0.45);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 40%, rgba(16, 185, 129, 0.08), transparent 30%),
        radial-gradient(circle at 85% 70%, rgba(52, 211, 153, 0.06), transparent 35%);
}

h1, h2, h3 {
    font-family: 'Outfit', sans-serif;
}

.app-container {
    width: 100%;
    max-width: 1000px;
    position: relative;
}

header {
    margin-bottom: 2rem;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #ffffff, #6ee7b7, #10b981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.screen {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

/* Typography & Labels */
.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.machine-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.machine-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.machine-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.15);
}

.machine-card.selected {
    border-color: var(--accent-color);
    background: rgba(16, 185, 129, 0.08);
}

.machine-card.selected::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-color);
}

.machine-name {
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.machine-detail {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.3rem;
}

.machine-detail strong {
    color: var(--text-primary);
}

.btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    font-family: 'Inter', sans-serif;
}

.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.35);
}

.btn:disabled {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-secondary);
    box-shadow: none;
}

/* Form Styles */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-control {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.input-suffix {
    position: absolute;
    right: 1rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    pointer-events: none;
}

.form-control:not(select) {
    padding-right: 3rem;
}

/* Dashboard Results */
.machine-active-banner {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.machine-active-banner h3 {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.time-highlight {
    text-align: center;
    padding: 3rem 0;
}

.time-highlight h2 {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.time-value {
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--success-color);
    font-family: 'Outfit', sans-serif;
    line-height: 1;
    text-shadow: 0 0 30px rgba(16, 185, 129, 0.2);
}

.time-sub {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
}

.stat-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.limit-banner {
    margin-top: 2rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.limit-icon {
    font-size: 1.5rem;
}

.limit-banner.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.limit-banner.warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.limit-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.limit-desc {
    color: var(--text-secondary);
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: none;
}

/* Micro animations */
.stat-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--glass-border);
}

.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    background: var(--bg-secondary);
    transition: all 0.3s ease;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.dropzone.dragover {
    background: var(--bg-tertiary);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.file-label {
    color: var(--accent-color);
    cursor: pointer;
    text-decoration: underline;
}

.file-label:hover {
    color: var(--accent-hover);
}

/* PDF Preview Box & Controls */
.pdf-preview-box {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    animation: fadeIn 0.3s ease-out;
}

.pdf-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pdf-preview-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-color);
    max-width: 50%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pdf-preview-controls {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.pdf-page-indicator {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0 0.4rem;
    font-weight: 500;
}

.pdf-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    padding: 0.35rem 0.65rem;
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
}

.pdf-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

.pdf-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-color: var(--border-color);
    transform: none;
}

.pdf-btn-danger:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
    color: white;
}

.pdf-canvas-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #121319;
    border-radius: 8px;
    padding: 1rem;
    overflow: auto;
    max-height: 480px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.pdf-canvas-wrapper canvas {
    max-width: 100%;
    height: auto !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
    border-radius: 4px;
    background: #ffffff;
}

/* Fullscreen Modal */
.pdf-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem;
    animation: fadeIn 0.25s ease-out;
}

.pdf-modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    width: 95%;
    max-width: 1100px;
    height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
}

.pdf-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.pdf-modal-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0;
}

.pdf-modal-body {
    flex: 1;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 1.5rem;
    background: #111217;
}

.pdf-modal-body canvas {
    max-width: 100%;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    border-radius: 6px;
    background: #ffffff;
}