/* Базовые сбросы стилей */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body, html {
    width: 100%;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    overflow: hidden;
    background-color: #f5f5f7;
}

/* Главный контейнер флекс */
.app-container {
    display: flex;
    width: 100vw;
    height: 100vh;
}

/* Область холста (Центрированная) */
.canvas-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-color: #eef2f3;
}

canvas {
    background-color: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    display: block;
}

/* Боковая панель настроек справа */
.settings-panel {
    width: 320px;
    background-color: #ffffff;
    border-left: 1px solid #d2d2d7;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
}

h2 {
    font-size: 1.5rem;
    color: #1d1d1f;
    border-bottom: 2px solid #0071e3;
    padding-bottom: 8px;
}

h3 {
    font-size: 1.1rem;
    color: #333333;
    margin-bottom: 10px;
}

.control-group {
    background-color: #f5f5f7;
    padding: 16px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 0.85rem;
    color: #86868b;
}

input[type="number"] {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #d2d2d7;
    border-radius: 6px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

input[type="number"]:focus {
    border-color: #0071e3;
}

.future-mock {
    border: 1px dashed #bcb9b9;
    background-color: transparent;
}

.hint {
    font-size: 0.85rem;
    color: #86868b;
    line-height: 1.4;
}








.primary-btn {
    width: 100%;
    padding: 10px;
    background-color: #0071e3;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}
.primary-btn:hover { background-color: #005bb5; }
.primary-btn.active {
    background-color: #ff9500;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}
.segments-list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 250px;
    overflow-y: auto;
}
.segment-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffffff;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid #d2d2d7;
    font-size: 0.85rem;
}
.segment-info {
    display: flex;
    flex-direction: column;
    color: #1d1d1f;
}
.segment-coords {
    font-family: monospace;
    color: #86868b;
    margin-top: 2px;
}
.delete-btn {
    background: none;
    border: none;
    color: #ff3b30;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}
.delete-btn:hover { color: #cc2e24; }




.segment-item.highlight {
    border-color: #0071e3;
    background-color: #f0f7ff;
}






.ctx-menu {
    position: fixed;
    background: #ffffff;
    border: 1px solid #d2d2d7;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    padding: 8px 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    min-width: 140px;
}
.ctx-item {
    padding: 8px 16px;
    font-size: 0.9rem;
    color: #1d1d1f;
    cursor: pointer;
    transition: background 0.15s;
}
.ctx-item:hover { background: #f5f5f7; }
.ctx-item.delete { color: #ff3b30; border-top: 1px solid #e5e5ea; }
.ctx-item.delete:hover { background: #fff2f1; }
.ctx-colors {
    display: flex;
    gap: 6px;
    padding: 8px 16px;
    border-bottom: 1px solid #e5e5ea;
}
.color-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    cursor: pointer;
    border: 1px solid rgba(0,0,0,0.1);
    transition: transform 0.1s;
}
.color-dot:hover { transform: scale(1.2); }





.pulse-highlight {
    animation: canvasPulse 1s infinite alternate ease-in-out;
}
@keyframes canvasPulse {
    0% { opacity: 0.3; filter: drop-shadow(0 0 2px rgba(255, 45, 85, 0.5)); }
    100% { opacity: 1; filter: drop-shadow(0 0 12px rgba(255, 45, 85, 1)); }
}