:root {
    --primary: #0078d4;
    --primary-hover: #106ebe;
    --bg-color: #f3f2f1;
    --text-color: #323130;
    --text-muted: #605e5c;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    --border-radius: 12px;
    --border-color: #e1dfdd;
    --success: #107c10;
    --error: #a4262c;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: var(--text-color);
    min-height: 100vh;
    padding: 2rem 1rem;
}

.container {
    max-width: 1600px;
    width: 95%;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

header p {
    color: var(--text-muted);
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.mt-20 {
    margin-top: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1.5rem;
}

.half {
    flex: 1;
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

textarea, input[type="number"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
}

textarea:focus, input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.2);
}

.btn {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.primary-btn {
    background-color: var(--primary);
    color: white;
}

.primary-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.3);
}

.primary-btn:disabled {
    background-color: #a19f9d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loader */
.loader {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

.hidden {
    display: none !important;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Account Result UI */
.account-email {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.error-text {
    color: var(--error);
    margin-bottom: 1rem;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 1rem;
}

.tab-btn {
    padding: 0.5rem 1.5rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

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

.tab-content {
    display: none;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Table styling */
.mail-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.mail-table th, .mail-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.mail-table th {
    background-color: #faf9f8;
    font-weight: 600;
    color: var(--text-color);
}

.mail-table tr:last-child td {
    border-bottom: none;
}

.mail-table tbody tr {
    transition: background-color 0.2s ease;
}

.mail-table tbody tr:hover {
    background-color: #f3f2f1;
}

.empty-row td {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
}

/* Flex Layout */
.form-row.align-end { align-items: flex-end; }
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
.flex-3 { flex: 3; }

/* Accordion */
.account-header { display: flex; justify-content: space-between; align-items: center; cursor: pointer; border-bottom: 2px solid var(--border-color); padding-bottom: 0.5rem; }
.account-email { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }
.accordion-icon { transition: transform 0.3s ease; }
.accordion-toggle.collapsed .accordion-icon { transform: rotate(-90deg); }
.accordion-content { display: block; overflow: hidden; transition: max-height 0.3s ease; }
.accordion-content.collapsed { display: none; }

/* Modal */
.modal { position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.5); display: flex; justify-content: center; align-items: center; opacity: 1; transition: opacity 0.3s ease; }
.modal.hidden { opacity: 0; pointer-events: none; }
.modal-content { background: #fff; width: 80%; max-width: 800px; max-height: 90vh; border-radius: var(--border-radius); display: flex; flex-direction: column; position: relative; padding: 30px; }
.close-modal { position: absolute; top: 15px; right: 20px; font-size: 28px; font-weight: bold; color: #aaa; cursor: pointer; }
.close-modal:hover { color: #333; }
.modal-body-content { flex: 1; overflow-y: auto; background: #fdfdfd; padding: 20px; border: 1px solid #eee; border-radius: 8px; margin-bottom: 15px; }
.modal-footer { text-align: right; }
.btn-close-modal { background: #6a5acd; color: white; padding: 8px 20px; }
.btn-close-modal:hover { background: #5a4fcf; }
.btn-more { background: #00bcd4; color: white; padding: 6px 12px; border-radius: 4px; border: none; cursor: pointer; font-weight: 500; font-size: 0.85rem;}
.btn-more:hover { background: #00acc1; }

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.6);
    padding: 4px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.nav-tab {
    padding: 6px 16px;
    border: none;
    background: transparent;
    border-radius: 16px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.25s ease;
}

.nav-tab:hover {
    color: var(--primary);
    background: rgba(255, 255, 255, 0.5);
}

.nav-tab.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 120, 212, 0.2);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.85rem;
    text-align: center;
}

.badge-live {
    background-color: #dff6dd;
    color: var(--success);
}

.badge-die {
    background-color: #fde7e9;
    color: var(--error);
}

.badge-checking {
    background-color: #deecf9;
    color: var(--primary);
}

.badge-pending {
    background-color: #f3f2f1;
    color: var(--text-muted);
}