/* Design System - Culori si variabile */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    --color-accent: #0ea5e9;
    --color-accent-hover: #38bdf8;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-danger-hover: #f87171;
    --color-energy: #a855f7;
    
    --color-portrait: rgba(14, 165, 233, 0.3);
    --color-portrait-border: #0ea5e9;
    --color-landscape: rgba(236, 72, 153, 0.3);
    --color-landscape-border: #ec4899;
    
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --transition-fast: 0.2s ease;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    min-height: 100vh;
    padding: 2rem 1rem;
}

/* Ecran Parola Securizat */
#password-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-primary);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.password-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-premium);
    animation: fadeIn 0.4s ease;
}

.password-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #e2e8f0;
}

.password-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    text-align: center;
    margin-bottom: 1rem;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #38bdf8, #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Elemente ascunse in modul normal, destinate printarii */
.print-header, .print-details {
    display: none;
}

/* Structura Grid Principala */
.main-content {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2rem;
}

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

/* Panou Controale stanga */
.controls-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-premium);
}

.card h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
    color: #e2e8f0;
    border-left: 4px solid var(--color-accent);
    padding-left: 8px;
}

/* Formulare */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
    min-width: 0;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    min-width: 0;
}

.margin-top {
    margin-top: 1rem;
}

.divider {
    height: 1px;
    background: var(--border-color);
    margin: 1.5rem 0;
}

label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

select, input {
    background-color: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 0.75rem 0.5rem;
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    width: 100%;
    min-width: 0;
}

select:focus, input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

/* Dinamic - ascundere/afisare grupuri de parametri */
.shape-param-group {
    display: none;
    animation: fadeIn 0.3s ease;
}

.shape-param-group.active {
    display: block;
}

/* Edit Zone Card States */
.active-zone-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.zone-edit-controls.disabled {
    opacity: 0.3;
    pointer-events: none;
}

/* Butoane */
.btn-primary {
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--color-accent);
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    width: 100%;
    margin-top: 1rem;
}

.btn-secondary:hover {
    background-color: rgba(14, 165, 233, 0.1);
}

/* Management Zone Active */
.active-zones-container {
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.active-zones-container h3 {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.zones-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 180px;
    overflow-y: auto;
    padding-right: 4px;
}

.zones-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.zones-list li:hover {
    border-color: rgba(14, 165, 233, 0.4);
    background: rgba(15, 23, 42, 0.6);
}

.zones-list li.selected {
    border-color: var(--color-accent);
    background: rgba(14, 165, 233, 0.1);
    box-shadow: 0 0 8px rgba(14, 165, 233, 0.2);
}

.zones-list li span {
    color: var(--text-primary);
}

.zones-list li .zone-details {
    color: var(--text-secondary);
    font-size: 0.75rem;
    display: block;
}

.btn-delete {
    background: transparent;
    border: none;
    color: var(--color-danger);
    cursor: pointer;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger-hover);
}

/* Sectiunea de vizualizare (dreapta) */
.visualization-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Carduri Rezultate */
.results-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.result-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    text-align: center;
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
}

#res-portrait::before { background-color: var(--color-portrait-border); }
#res-landscape::before { background-color: var(--color-landscape-border); }
#res-combinat::before { background: linear-gradient(to right, var(--color-portrait-border), var(--color-landscape-border)); }

.result-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.result-card .count {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.result-card .unit {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.result-card .details-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.result-card .power-estim {
    font-size: 0.85rem;
    color: var(--color-accent-hover);
    font-weight: 600;
    margin-top: 0.4rem;
}

.result-card .energy-estim {
    font-size: 0.85rem;
    color: var(--color-energy);
    font-weight: 600;
    margin-top: 0.2rem;
}

.result-card .efficiency {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--color-success);
    font-weight: 600;
}

/* Canvas si controale */
.canvas-container {
    background: #090d16;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    height: 550px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.8);
}

#main-canvas {
    width: 100%;
    height: 100%;
    cursor: grab;
}

#main-canvas:active {
    cursor: grabbing;
}

/* Controale Zoom / Reset */
.view-controls {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 10;
}

.view-controls button {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.view-controls button:hover {
    background: var(--bg-secondary);
    border-color: var(--color-accent);
}

/* Legenda */
.legend {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    z-index: 10;
    pointer-events: none;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.color-box {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    display: inline-block;
}

.color-box.shape-border {
    border: 2px dashed #ffffff;
    background: transparent;
}

.color-box.panel-portrait {
    background: var(--color-portrait);
    border: 1px solid var(--color-portrait-border);
}

.color-box.panel-landscape {
    background: var(--color-landscape);
    border: 1px solid var(--color-landscape-border);
}

/* Selectorul de moduri de asezare */
.layout-selector {
    display: flex;
    background: var(--bg-secondary);
    padding: 0.4rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--color-accent);
    color: white;
}

/* Lista string-uri si formulare Iteratia 6 */
.active-zone-strings-container {
    margin-top: 1rem;
}

.active-zone-strings-container h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.strings-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    max-height: 160px;
    overflow-y: auto;
    padding-right: 4px;
}

.strings-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    font-size: 0.8rem;
}

.strings-list li .string-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.strings-list li .string-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    border: 1px solid rgba(255,255,255,0.2);
}

.manual-string-form {
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    margin-top: 1rem;
}

.manual-string-form h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    border-left: 3px solid var(--color-energy);
    padding-left: 6px;
}

/* Animatii */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* STILURI DE PRINTARE / EXPORT PDF */
@media print {
    body {
        background: #ffffff !important;
        color: #000000 !important;
        padding: 0 !important;
        font-size: 11pt !important;
    }
    
    .app-container {
        gap: 1rem !important;
        max-width: 100% !important;
        margin: 0 !important;
    }
    
    .no-print {
        display: none !important;
    }
    
    .print-header {
        display: block !important;
        text-align: center;
        border-bottom: 2px solid #334155;
        padding-bottom: 10px;
        margin-bottom: 20px;
        color: #0f172a !important;
    }
    
    .print-header h1 {
        font-size: 20pt;
        font-weight: bold;
    }
    
    .print-header p {
        font-size: 10pt;
        color: #475569;
    }
    
    .main-content {
        display: block !important;
        width: 100% !important;
    }
    
    .visualization-panel {
        width: 100% !important;
    }
    
    .canvas-container {
        background: #ffffff !important;
        border: 1px solid #cbd5e1 !important;
        height: 480px !important;
        box-shadow: none !important;
        page-break-inside: avoid;
    }
    
    #main-canvas {
        filter: invert(0.92) contrast(1.1) saturate(1.5);
    }
    
    .results-summary {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 15px !important;
        margin-bottom: 25px !important;
    }
    
    .result-card {
        background: #f8fafc !important;
        border: 1px solid #cbd5e1 !important;
        box-shadow: none !important;
        color: #0f172a !important;
        padding: 10px !important;
    }
    
    .result-card::before {
        height: 6px !important;
    }
    
    .result-card h3, 
    .result-card .count, 
    .result-card .unit, 
    .result-card .details-text, 
    .result-card .power-estim, 
    .result-card .energy-estim, 
    .result-card .efficiency {
        color: #0f172a !important;
    }
    
    .print-details {
        display: block !important;
        margin-top: 30px;
        page-break-inside: avoid;
    }
    
    .print-details h3 {
        font-size: 13pt;
        color: #0f172a;
        margin-bottom: 10px;
        border-bottom: 1px solid #cbd5e1;
        padding-bottom: 5px;
    }
    
    .print-table {
        width: 100%;
        border-collapse: collapse;
    }
    
    .print-table th, .print-table td {
        border: 1px solid #cbd5e1;
        padding: 8px 12px;
        font-size: 10pt;
        text-align: left;
    }
    
    .print-table th {
        background-color: #f1f5f9;
        font-weight: bold;
    }
}