/* ==========================================================================
   GLOBAL VARIABLES & RESET
   ========================================================================== */
   :root {
    --font-main: 'Plus Jakarta Sans', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    --c-magenta: #E6007E;
    --c-magenta-light: rgba(230, 0, 126, 0.1);
    --c-text-dark: #1A1A1A;
    --c-text-muted: #666666;
    
    /* Milk Crystal Theme */
    --bg-app: linear-gradient(135deg, #f8f9fa 0%, #f0e6ef 100%);
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shadow: 0 10px 40px rgba(230, 0, 126, 0.04);
}

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

body {
    font-family: var(--font-main);
    color: var(--c-text-dark);
    background: var(--bg-app);
    height: 100vh;
    overflow: hidden;
}

/* ==========================================================================
   LAYOUT GRID
   ========================================================================== */
.app-layout {
    display: grid;
    grid-template-columns: 200px 1fr 400px;
    height: 100vh;
    padding: 20px;
    gap: 20px;
}

/* ==========================================================================
   LEFT SIDEBAR (Stepper)
   ========================================================================== */
.sidebar-left {
    padding: 20px 0;
    display: flex;
    flex-direction: column;
}
.nav-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--c-text-muted);
    margin-bottom: 30px;
}
.stepper { list-style: none; display: flex; flex-direction: column; gap: 24px; }
.step { display: flex; align-items: center; gap: 15px; opacity: 0.4; transition: 0.3s; }
.step.active { opacity: 1; transform: translateX(10px); }
.step-num { font-family: var(--font-display); font-size: 24px; font-weight: 700; color: var(--c-magenta); }
.step-name { font-weight: 700; font-size: 14px; text-transform: uppercase; }

/* ==========================================================================
   CENTER (3D Viewer)
   ========================================================================== */
.viewer-area {
    position: relative;
    border-radius: 24px;
    /* Легкий градієнт за моделлю для об'єму */
    background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.8) 0%, transparent 80%);
    display: flex;
    justify-content: center;
    align-items: center;
}
model-viewer {
    width: 100%; height: 100%;
    outline: none; background-color: transparent;
}
.camera-controls {
    position: absolute;
    bottom: 30px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 8px; z-index: 10;
    background: var(--glass-bg); padding: 8px;
    border-radius: 20px; backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow);
}
.cam-btn {
    background: transparent; border: none; color: var(--c-text-muted);
    padding: 10px 16px; border-radius: 14px; font-weight: 700; font-size: 12px;
    cursor: pointer; transition: 0.3s;
}
.cam-btn.active, .cam-btn:hover { background: #fff; color: var(--c-text-dark); box-shadow: 0 4px 10px rgba(0,0,0,0.05); }

/* ==========================================================================
   RIGHT SIDEBAR (Glass Blocks)
   ========================================================================== */
.sidebar-right {
    display: flex;
    flex-direction: column;
    gap: 15px;
    overflow-y: auto;
    padding-right: 5px; /* Для скролу */
}
.sidebar-right::-webkit-scrollbar { width: 4px; }
.sidebar-right::-webkit-scrollbar-thumb { background: rgba(230,0,126,0.3); border-radius: 4px; }

/* Золоте правило: Milk Crystal Glassmorphism */
.glass-block {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 24px;
    box-shadow: var(--glass-shadow);
}

.block-header { font-family: var(--font-display); font-size: 16px; font-weight: 700; text-transform: uppercase; margin-bottom: 20px; color: var(--c-text-dark); }
.flex-between { display: flex; justify-content: space-between; align-items: center; }

/* Елементи форм */
.control-group { margin-bottom: 16px; }
.control-group label { display: block; font-size: 12px; font-weight: 700; color: var(--c-text-muted); margin-bottom: 8px; text-transform: uppercase; }
.glass-input { width: 100%; background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 12px; font-family: var(--font-main); font-weight: 600; color: var(--c-text-dark); outline: none; transition: 0.3s; }
.glass-input:focus { border-color: var(--c-magenta); box-shadow: 0 0 0 3px var(--c-magenta-light); }

/* Кольори та розміри */
.color-picker-group { display: flex; gap: 10px; }
.color-swatch { width: 32px; height: 32px; border-radius: 50%; border: 2px solid transparent; cursor: pointer; transition: 0.2s; }
.color-swatch.active { transform: scale(1.1); box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--c-magenta); }

.size-group { display: flex; gap: 8px; flex-wrap: wrap; }
.size-btn { background: #fff; border: 1px solid #eee; border-radius: 10px; padding: 10px 0; width: 45px; text-align: center; font-weight: 700; cursor: pointer; transition: 0.2s; color: var(--c-text-muted); }
.size-btn.active { background: var(--c-text-dark); color: #fff; border-color: var(--c-text-dark); }
.link-small { font-size: 11px; color: var(--c-magenta); text-decoration: none; font-weight: 700; }

/* Кнопки */
.icon-btn { background: var(--c-magenta-light); color: var(--c-magenta); border: none; width: 32px; height: 32px; border-radius: 10px; font-size: 18px; cursor: pointer; font-weight: bold; transition: 0.2s; }
.icon-btn:hover { background: var(--c-magenta); color: #fff; }

.empty-state { font-size: 13px; color: var(--c-text-muted); text-align: center; padding: 20px; background: rgba(0,0,0,0.02); border-radius: 12px; border: 1px dashed #ddd; }

.action-footer { display: flex; flex-direction: column; gap: 15px; margin-top: auto; }
.price-display { display: flex; justify-content: space-between; align-items: center; }
.price-label { font-size: 14px; font-weight: 700; color: var(--c-text-muted); text-transform: uppercase; }
.price-value { font-family: var(--font-display); font-size: 28px; font-weight: 800; color: var(--c-text-dark); }

.btn-primary { background: var(--c-magenta); color: #fff; border: none; border-radius: 14px; padding: 16px; font-family: var(--font-main); font-weight: 700; font-size: 16px; text-transform: uppercase; cursor: pointer; transition: 0.3s; box-shadow: 0 8px 20px rgba(230,0,126,0.3); }
.btn-primary:hover { background: #c2006a; transform: translateY(-2px); box-shadow: 0 12px 25px rgba(230,0,126,0.4); }

/* ==========================================================================
   2D CANVAS ТА КНОПКИ ШАРІВ
   ========================================================================== */
.btn-small {
    background: #ffffff;
    border: 1px solid var(--glass-border);
    color: var(--c-text-dark);
    padding: 8px 12px;
    border-radius: 10px;
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

.btn-small:hover {
    background: var(--c-magenta-light);
    color: var(--c-magenta);
    border-color: var(--c-magenta);
}

.canvas-container-wrapper {
    margin-top: 20px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px dashed rgba(230, 0, 126, 0.3);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    box-shadow: inset 0 4px 10px rgba(0,0,0,0.03);
    transition: 0.3s;
}

.canvas-container-wrapper:hover {
    border-color: var(--c-magenta);
}