/* ============================================
   DomainPeek - Style Sheet
   ============================================ */

/* --- CSS Reset & Variables --- */
*, *::before, *::after {
    box-sizing: border-box;
}

:root {
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --card-bg: #1e293b;
    --card-inner: #0f172a;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --success-color: #10b981;
    --success-hover: #059669;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --error-hover: #dc2626;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: var(--bg-gradient);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Toast Notifications --- */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    color: white;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    animation: toastIn 0.35s ease-out, toastOut 0.35s ease-in forwards;
    animation-delay: 0s, 3s;
    max-width: 380px;
    backdrop-filter: blur(12px);
}

.toast--error {
    background: linear-gradient(135deg, var(--error-color), #b91c1c);
    border-left: 4px solid #fca5a5;
}

.toast--warning {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
    border-left: 4px solid #fde68a;
}

.toast--success {
    background: linear-gradient(135deg, var(--success-color), #047857);
    border-left: 4px solid #6ee7b7;
}

.toast--info {
    background: linear-gradient(135deg, var(--accent-color), #1d4ed8);
    border-left: 4px solid #93c5fd;
}

@keyframes toastIn {
    from { transform: translateX(100%); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to   { transform: translateX(100%); opacity: 0; }
}

/* --- Header --- */
header {
    background-color: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    background: linear-gradient(135deg, var(--accent-color), #6366f1);
    color: white;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-weight: bold;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

header h1 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

header p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.header-status {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.header-status strong {
    color: var(--success-color);
}

/* --- Main Container --- */
.container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 30px 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* --- Controls Panel --- */
.controls-panel {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.search-bar-row {
    display: flex;
    gap: 12px;
}

.search-bar-row input[type="text"] {
    flex-grow: 1;
    background-color: var(--card-inner);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 20px;
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: all 0.2s ease;
    font-family: inherit;
}

.search-bar-row input[type="text"]:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-bar-row input[type="text"].input-error {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.validation-hint {
    font-size: 0.8rem;
    color: var(--error-color);
    margin-top: -12px;
    padding-left: 4px;
    display: none;
}

.validation-hint.visible {
    display: block;
}

/* --- Buttons --- */
.btn {
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), #6366f1);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover), #4f46e5);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.35);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: 8px;
}

.btn-success:hover {
    background-color: var(--success-hover);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 8px 14px;
    font-size: 0.82rem;
    border-radius: 8px;
}

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* --- Options Row --- */
.options-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.checkbox-section {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.section-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.checkboxes-wrapper {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.checkbox-card {
    background-color: var(--card-inner);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    position: relative;
}

.checkbox-card:hover {
    border-color: var(--accent-color);
}

.checkbox-card.is-custom {
    padding-right: 30px;
}

.checkbox-card input[type="checkbox"] {
    margin: 0;
    accent-color: var(--accent-color);
    cursor: pointer;
    width: 16px;
    height: 16px;
}

.remove-ext-btn {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.75rem;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.15s ease;
    padding: 0;
}

.remove-ext-btn:hover {
    background: var(--error-color);
    color: white;
}

.bulk-actions {
    display: flex;
    gap: 6px;
    margin-left: 4px;
}

.custom-ext-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
}

.custom-ext-wrapper input {
    background-color: var(--card-inner);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    color: var(--text-main);
    font-size: 0.85rem;
    outline: none;
    width: 120px;
    font-family: inherit;
    transition: border-color 0.2s ease;
}

.custom-ext-wrapper input:focus {
    border-color: var(--accent-color);
}

/* --- Summary Bar --- */
.summary-bar {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    padding: 12px 0;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.summary-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.summary-dot--loading { background-color: var(--accent-color); }
.summary-dot--loaded  { background-color: var(--success-color); }
.summary-dot--error   { background-color: var(--error-color); }

/* --- Live Viewer Grid --- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(400px, 100%), 1fr));
    gap: 25px;
}

/* --- Pane Card --- */
.pane-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    height: 480px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    animation: cardFadeIn 0.4s ease-out;
}

.pane-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -3px rgba(0, 0, 0, 0.4);
}

@keyframes cardFadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

.pane-header {
    background-color: var(--card-inner);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.pane-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    cursor: pointer;
    flex-grow: 1;
    min-width: 0;
}

.pane-info:hover .domain-name {
    color: var(--accent-color);
}

.domain-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    transition: color 0.15s ease;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.open-badge {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.pane-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.action-icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    padding: 0;
}

.action-icon-btn:hover {
    background-color: var(--border-color);
    color: var(--text-main);
}

/* --- iframe & Loading states --- */
.iframe-wrapper {
    flex-grow: 1;
    position: relative;
    overflow: hidden;
    background: #0f172a;
    display: flex;
    flex-direction: column;
}

.iframe-wrapper iframe {
    width: 100%;
    flex-grow: 1;
    border: none;
    background-color: white;
    position: relative;
    z-index: 1;
}

.iframe-loading-overlay {
    position: absolute;
    inset: 0;
    background: var(--card-inner);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 2;
    transition: opacity 0.3s ease;
}

.iframe-loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Help bar — appears after load, subtle and non-intrusive */
.iframe-help-bar {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--card-inner);
    border-top: 1px solid var(--border-color);
    font-size: 0.78rem;
    color: var(--text-muted);
    flex-shrink: 0;
    z-index: 4;
}

.iframe-help-bar.visible {
    display: flex;
}

.help-bar-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--accent-color);
    padding: 3px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.78rem;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.15s ease;
}

.help-bar-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* --- Footer --- */
footer {
    background-color: rgba(15, 23, 42, 0.95);
    border-top: 1px solid var(--border-color);
    padding: 30px 20px;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.dev-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: left;
}

.dev-info .dev-name {
    font-weight: 700;
    color: var(--text-main);
    font-size: 1rem;
}

.dev-info .dev-title {
    font-size: 0.8rem;
    color: var(--accent-color);
}

.dev-contacts {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.dev-contacts a {
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.2s;
}

.dev-contacts a:hover {
    color: var(--accent-color);
}

.copyright-text {
    width: 100%;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #1e293b;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    header {
        padding: 12px 16px;
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    .container {
        padding: 16px 12px;
    }

    .controls-panel {
        padding: 16px;
    }

    .search-bar-row {
        flex-direction: column;
    }

    .search-bar-row .btn {
        justify-content: center;
    }

    .options-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .pane-card {
        height: 400px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .dev-info {
        text-align: center;
    }

    .dev-contacts {
        justify-content: center;
    }
}