/* ============================================================
   Ping Test – Modern SaaS Card UI (Responsive + Dark Mode)
   ============================================================ */

:root {
    --bg: #f4f6f9;
    --card-bg: #ffffff;
    --text: #1a1a2e;
    --text-secondary: #4a4a6a;
    --border: #e2e8f0;
    --shadow: 0 8px 24px rgba(0,0,0,0.06);
    --primary: #003a87;
    --primary-hover: #002c66;
    --accent: #db0601;
    --accent-hover: #b80501;
    --success: #16a34a;
    --error: #dc2626;
    --font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --radius: 16px;
    --transition: 0.3s ease;
}

[data-theme="dark"] {
    --bg: #0f1117;
    --card-bg: #1c1e26;
    --text: #e4e6f0;
    --text-secondary: #a0a4b8;
    --border: #2e3140;
    --shadow: 0 8px 24px rgba(0,0,0,0.4);
}

* {
    box-sizing: border-box;
}

body {
    background: var(--bg);
    margin: 0;
    font-family: var(--font);
    color: var(--text);
    transition: background var(--transition), color var(--transition);
}

/* Main container */
.pt-page-container {
    width: 100%;
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Card wrapper */
.pt-card-view {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    animation: ptFadeUp 0.5s ease forwards;
}

/* Card header row */
.pt-card-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.pt-card-header-row h2,
.pt-card-header-row h3,
.pt-full-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0;
    color: var(--text);
}

/* Input group */
.pt-input-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.pt-input-wrapper {
    flex: 1 1 250px;
}

.pt-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    outline: none;
    transition: border var(--transition);
}

.pt-input:focus {
    border-color: var(--primary);
}

.pt-select-wrapper {
    flex: 0 0 auto;
}

.pt-select {
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    outline: none;
    cursor: pointer;
}

/* Primary button */
.pt-primary-btn {
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    padding: 14px 24px;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: background var(--transition), transform 0.1s;
    letter-spacing: 0.3px;
}

.pt-primary-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.02);
}

/* Progress area */
.pt-progress-area {
    margin-top: 20px;
}

.pt-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 8px;
}

.pt-progress-fill {
    width: 0%;
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
}

.pt-progress-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
    margin: 0;
}

/* Action buttons */
.pt-action-btns {
    display: flex;
    gap: 8px;
}

.pt-icon-btn {
    background: rgba(128,128,128,0.1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 10px;
    color: var(--text);
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s, transform 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pt-icon-btn:hover {
    background: rgba(128,128,128,0.25);
    transform: translateY(-1px);
}

.pt-icon {
    font-style: normal;
}

/* Results grid */
.pt-results-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.pt-stats {
    flex: 1 1 280px;
}

.pt-chart-wrapper {
    flex: 1 1 350px;
    min-width: 280px;
}

.pt-chart-wrapper canvas {
    width: 100% !important;
    height: auto !important;
}

/* Clean list for stats */
.pt-clean-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.pt-clean-list > div {
    display: flex;
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.pt-clean-list > div:last-child {
    border-bottom: none;
}

.pt-clean-list span:first-child {
    font-weight: 600;
    color: var(--text);
    font-size: 0.95rem;
    flex: 0 0 45%;
    max-width: 45%;
}

.pt-clean-list span:last-child {
    color: var(--text-secondary);
    font-weight: 500;
    text-align: right;
    word-break: break-word;
    flex: 1;
    font-size: 0.95rem;
}

/* History table */
.pt-history-table-wrapper {
    overflow-x: auto;
}

.pt-history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.pt-history-table th,
.pt-history-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.pt-history-table th {
    font-weight: 700;
    color: var(--text);
}

.pt-history-table tbody tr:hover {
    background: rgba(128,128,128,0.05);
}

/* Responsive */
@media (max-width: 900px) {
    .pt-results-grid {
        flex-direction: column;
    }
    .pt-input-group {
        flex-direction: column;
    }
    .pt-input-wrapper,
    .pt-select-wrapper,
    .pt-primary-btn {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .pt-page-container {
        margin: 15px auto;
        padding: 0 12px;
        gap: 20px;
    }
    .pt-card-view {
        padding: 18px;
    }
    .pt-card-header-row h2,
    .pt-card-header-row h3,
    .pt-full-header h3 {
        font-size: 1.2rem;
    }
    .pt-clean-list > div {
        padding: 6px 0;
    }
    .pt-clean-list span:first-child {
        font-size: 0.85rem;
        flex: 0 0 50%;
        max-width: 50%;
    }
    .pt-clean-list span:last-child {
        font-size: 0.85rem;
    }
}

/* Animation */
@keyframes ptFadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}