/* Build System Refined CSS */
:root {
    --build-primary: #00d2ff;
    --build-secondary: #3a7bd5;
    --build-bg: #0f0c29;
    --build-card-bg: rgba(255, 255, 255, 0.05);
    --build-glass-border: rgba(255, 255, 255, 0.1);
    --build-success: #00ff88;
    --build-danger: #ff4757;
    --panel-width: 320px;
}

body.build-body {
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    min-height: 100vh;
    color: white;
    font-family: 'Inter', 'Segoe UI', sans-serif;
    overflow-x: hidden;
}

.build-container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 20px 40px;
}

/* Minimal Header */
.build-header-minimal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding: 10px 0;
}

.build-page-title {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin: 0;
    color: var(--build-primary);
    text-shadow: 0 0 10px rgba(0, 210, 255, 0.3);
}

.btn-build-nav {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--build-glass-border);
    border-radius: 12px;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.btn-build-nav:hover {
    background: var(--build-primary);
    color: #000;
    transform: scale(1.1);
}

/* Section Cards Grid (Interceptions) */
.view-grid {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 20px;
    margin-bottom: 60px;
}

@media (max-width: 1024px) {
    .view-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
    }
}

@media (max-width: 480px) {
    .view-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
}

.view-card {
    background: var(--build-card-bg);
    border: 1px solid var(--build-glass-border);
    border-radius: 20px;
    padding: 25px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

@media (max-width: 480px) {
    .view-card {
        padding: 15px;
    }
}

.view-card:hover {
    border-color: var(--build-primary);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* Assets Grid - STRICT 4 Columns Desktop / 2 Mobile */
.assets-grid-container {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 30px;
    margin-top: 40px;
}

@media (max-width: 1024px) {
    .assets-grid-container {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
    }
}

@media (max-width: 480px) {
    .assets-grid-container {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
}

.asset-card {
    background: var(--build-card-bg);
    border-radius: 25px;
    overflow: hidden;
    border: 1px solid var(--build-glass-border);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    aspect-ratio: 4/5;
    display: flex;
    flex-direction: column;
}

.asset-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--build-primary);
    box-shadow: 0 15px 40px rgba(0, 210, 255, 0.2);
}

.asset-viewer-container {
    flex: 1;
    background: radial-gradient(circle at center, rgba(0, 210, 255, 0.05), transparent);
    position: relative;
}

/* Vertical Side Tab */
.vertical-side-tab {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: var(--build-primary);
    padding: 25px 10px;
    border-radius: 0 15px 15px 0;
    cursor: pointer;
    z-index: 4500;
    transition: all 0.3s;
    box-shadow: 5px 0 15px rgba(0, 210, 255, 0.3);
}

.vertical-side-tab:hover {
    padding-left: 20px;
}

.vertical-side-tab span {
    writing-mode: vertical-lr;
    text-orientation: mixed;
    transform: rotate(180deg);
    font-weight: 900;
    letter-spacing: 3px;
    color: #000;
    font-size: 0.8rem;
}

/* Side Panel */
.side-panel {
    position: fixed;
    top: 0;
    left: calc(-1 * var(--panel-width));
    width: var(--panel-width);
    height: 100vh;
    background: rgba(10, 10, 20, 0.98);
    backdrop-filter: blur(30px);
    border-right: 1px solid var(--build-glass-border);
    z-index: 5000;
    transition: left 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    padding: 60px 30px;
}

.side-panel.active { left: 0; }

.panel-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 4999;
    display: none;
}

.panel-overlay.active { display: block; }

/* Modal & Tabs */
.build-modal {
    max-width: 800px !important;
    background: #1a1a1a !important;
    border-radius: 25px !important;
    padding: 40px !important;
}

.slot-modal-tabs {
    display: flex;
    gap: 15px;
    margin-bottom: 35px;
    justify-content: center;
}

.slot-tab-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--build-glass-border);
    color: #888;
    padding: 12px 30px;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 800;
    font-size: 0.8rem;
    letter-spacing: 1px;
    transition: all 0.3s;
}

.slot-tab-btn.active {
    background: var(--build-primary);
    color: #000;
    border-color: var(--build-primary);
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.3);
}

.slot-tab-content {
    display: none;
}

.slot-tab-content.active {
    display: block;
    animation: fadeInUp 0.4s ease;
}

.modern-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .modern-form-grid { grid-template-columns: 1fr; }
}

.modern-form-group {
    margin-bottom: 25px;
}

.modern-form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 0.8rem;
    font-weight: 900;
    color: var(--build-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modern-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--build-glass-border);
    padding: 15px;
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s;
}

.modern-input:focus {
    outline: none;
    border-color: var(--build-primary);
    background: rgba(255, 255, 255, 0.1);
}

.drop-zone-modern {
    background: rgba(0, 0, 0, 0.3);
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.drop-zone-modern.dragover {
    border-color: var(--build-primary);
    background: rgba(0, 210, 255, 0.05);
}

.drop-zone-modern i { font-size: 2.5rem; color: var(--build-primary); margin-bottom: 12px; }
.drop-zone-modern p { font-size: 0.8rem; color: #888; margin: 0; }

.file-name {
    font-size: 0.75rem;
    color: var(--build-success);
    margin-top: 10px;
    word-break: break-all;
    max-width: 90%;
    font-weight: bold;
}

.btn-save-full {
    width: 100%;
    height: 60px;
    justify-content: center;
    margin-top: 20px;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* UI Elements Reuse */
.view-icon { width: 45px; height: 45px; background: rgba(0, 210, 255, 0.1); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--build-primary); font-size: 1.3rem; }
.view-status { padding: 4px 12px; border-radius: 50px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase; }
.status-live { background: rgba(0, 255, 136, 0.1); color: var(--build-success); }
.status-build { background: rgba(255, 71, 87, 0.1); color: var(--build-danger); }
.btn-build-main { background: linear-gradient(to right, var(--build-primary), var(--build-secondary)); color: #000; border: none; padding: 12px 24px; border-radius: 12px; font-weight: 800; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; gap: 10px; }
.btn-build-main:hover { transform: scale(1.05); box-shadow: 0 0 15px rgba(0, 210, 255, 0.4); }
.target-selector { display: grid; grid-template-columns: 1fr 1fr; background: rgba(0, 0, 0, 0.3); padding: 4px; border-radius: 10px; margin-top: 15px; }
.target-btn { padding: 8px; border-radius: 7px; border: none; background: transparent; color: #888; font-size: 0.75rem; font-weight: 700; cursor: pointer; }
.target-btn.active { background: var(--build-primary); color: #000; }
.model-picker-trigger { background: rgba(255, 255, 255, 0.03); border: 1px dashed rgba(255, 255, 255, 0.2); border-radius: 12px; padding: 12px; margin: 15px 0; text-align: center; cursor: pointer; font-size: 0.85rem; }
.build-toggle { position: relative; display: inline-block; width: 50px; height: 28px; }
.build-toggle input { opacity: 0; width: 0; height: 0; }
.build-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background: rgba(255, 255, 255, 0.1); transition: .4s; border-radius: 34px; }
.build-slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background: white; transition: .4s; border-radius: 50%; }
input:checked + .build-slider { background: var(--build-primary); }
input:checked + .build-slider:before { transform: translateX(22px); }

/* Model Picker Popover */
.model-picker-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(15px);
    z-index: 6000;
    display: none;
    align-items: center;
    justify-content: center;
}
.model-picker-overlay.active { display: flex; }
.model-picker-content {
    background: #111;
    width: 90%; max-width: 800px; max-height: 80vh;
    border-radius: 30px;
    border: 1px solid var(--build-glass-border);
    padding: 40px;
    overflow-y: auto;
}
.picker-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
.btn-close-picker { background: none; border: none; color: #888; font-size: 2rem; cursor: pointer; }
.model-picker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 20px; }
.model-option {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    border-radius: 20px;
    padding: 15px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s;
}
.model-option:hover { border-color: var(--build-primary); background: rgba(255, 255, 255, 0.07); }
.model-option img { width: 100%; height: 100px; object-fit: cover; border-radius: 12px; margin-bottom: 10px; }

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