/* ============================================================
   BBQ Mailer — Black & White theme with dark mode
   ============================================================ */

:root {
    --bg-page-from: #f0f0f0;
    --bg-page-to: #d8d8d8;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e8e8e8;
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-muted: #666666;
    --accent: #000000;
    --accent-hover: #333333;
    --border-color: #d0d0d0;
    --header-from: #000000;
    --header-to: #333333;
    --header-text: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.2);
}

html[data-theme="dark"] {
    --bg-page-from: #1a1a1a;
    --bg-page-to: #0a0a0a;
    --bg-primary: #1e1e1e;
    --bg-secondary: #262626;
    --bg-tertiary: #303030;
    --text-primary: #f2f2f2;
    --text-secondary: #d0d0d0;
    --text-muted: #9a9a9a;
    --accent: #ffffff;
    --accent-hover: #cccccc;
    --border-color: #3a3a3a;
    --header-from: #000000;
    --header-to: #2a2a2a;
    --header-text: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.5);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.55);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.6);
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background-color: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background-color: var(--border-color); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background-color: var(--text-muted); }

* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) var(--bg-secondary);
    box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body.terminal-bg {
    background: linear-gradient(135deg, var(--bg-page-from) 0%, var(--bg-page-to) 100%);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 1rem;
    margin: 0;
    min-height: 100vh;
    padding: 20px;
    transition: background 0.3s ease, color 0.3s ease;
}

.terminal-window {
    max-width: 960px;
    margin: 40px auto;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

/* Header */
.terminal-header {
    background: linear-gradient(135deg, var(--header-from) 0%, var(--header-to) 100%);
    color: var(--header-text);
    padding: 14px 20px;
    font-weight: 600;
    font-size: 1.2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 8px;
}

.prompt-blink { animation: blink 1s steps(1) infinite; }
@keyframes blink { 0%, 50% { opacity: 1; } 51%, 100% { opacity: 0; } }

.header-tools {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-switcher {
    display: inline-flex;
    background: rgba(255,255,255,0.12);
    border-radius: 8px;
    padding: 3px;
    gap: 2px;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--header-text);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    font-family: inherit;
}

.lang-btn:hover { background: rgba(255,255,255,0.18); }

.lang-btn.active {
    background: var(--header-text);
    color: #000000;
}

.theme-toggle {
    background: rgba(255,255,255,0.12);
    border: none;
    color: var(--header-text);
    font-size: 1.1rem;
    width: 38px;
    height: 34px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    line-height: 1;
}

.theme-toggle:hover { background: rgba(255,255,255,0.22); transform: translateY(-1px); }

/* Body */
.terminal-body {
    padding: 24px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

.terminal-intro {
    color: var(--text-primary);
    font-size: 1.3rem;
    margin-bottom: 28px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 4px solid var(--accent);
    font-weight: 500;
    line-height: 1.5;
}

.terminal-section {
    margin-bottom: 24px;
    border-left: 4px solid var(--accent);
    padding: 20px;
    border-radius: 8px;
    background: var(--bg-secondary);
}

.section-label {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    gap: 12px;
}

.section-header .section-label { margin-bottom: 0; }

.random-btn {
    background: var(--accent);
    border: none;
    color: var(--bg-primary);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
    font-family: inherit;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

.random-btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.random-btn:active { transform: translateY(0); }

/* Search */
.search-wrap { margin-bottom: 16px; }

.search-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(128,128,128,0.15);
}

/* Recipients */
.checkbox-group { display: flex; flex-direction: column; gap: 12px; }

.checkbox-option {
    display: flex;
    align-items: center;
    padding: 14px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.checkbox-option:hover { border-color: var(--accent); background: var(--bg-tertiary); transform: translateX(3px); }
.checkbox-option:has(input:checked) { border-color: var(--accent); background: var(--bg-tertiary); box-shadow: var(--shadow-sm); }

.checkbox-option:has(input:checked)::before {
    content: '✓';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent);
    font-size: 20px;
    font-weight: bold;
}

.checkbox-option input[type="checkbox"],
.recommended-email input[type="checkbox"] {
    margin-right: 12px;
    cursor: pointer;
    width: 20px;
    height: 20px;
    accent-color: var(--accent);
    flex-shrink: 0;
}

.checkbox-option span,
.recommended-email span { flex: 1; color: var(--text-primary); font-weight: 500; }

.checkbox-option small,
.recommended-email small {
    display: block;
    color: var(--text-muted);
    font-size: 0.85em;
    margin-top: 4px;
    font-weight: 400;
}

#customEmail {
    margin-left: 10px;
    padding: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    flex: 1;
    min-width: 0;
    font-size: 14px;
    color: var(--text-primary);
    font-family: inherit;
}

#customEmail:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(128,128,128,0.12); }

#recommendedEmails { margin-top: 10px; display: flex; flex-direction: column; gap: 10px; }

.recommended-email {
    display: flex;
    align-items: center;
    padding: 14px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
}

/* Template grid */
.email-templates {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.email-option {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.25s ease;
    box-shadow: var(--shadow-sm);
}

.email-option:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow-md); }

.email-option.selected {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent), var(--shadow-md);
}

.fav-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 2;
    background: rgba(0,0,0,0.35);
    border: none;
    color: #ffffff;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: transform 0.15s, background 0.2s;
}

.fav-btn:hover { transform: scale(1.15); background: rgba(0,0,0,0.55); }
.fav-btn.is-fav { color: #ffd23f; }

.prank-button {
    background: linear-gradient(135deg, var(--header-from) 0%, var(--header-to) 100%);
    border: none;
    color: #ffffff;
    padding: 18px 44px 18px 16px;
    text-align: left;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 10px;
}

.prank-button:hover { filter: brightness(1.25); padding-left: 20px; }
.prank-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tpl-icon { font-size: 20px; flex-shrink: 0; }

.email-preview {
    background: var(--bg-primary);
    padding: 14px 16px;
    margin: 0;
    font-size: 13px;
    color: var(--text-secondary);
    min-height: 48px;
    display: flex;
    align-items: center;
    line-height: 1.5;
    cursor: pointer;
}

.email-option:hover .email-preview { color: var(--text-primary); background: var(--bg-tertiary); }
.email-option.selected .email-preview { color: var(--text-primary); font-weight: 500; }

.no-results {
    margin-top: 16px;
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
}

/* Preview panel */
.preview-section { border-left-color: var(--accent); }

.preview-panel {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 18px;
}

.preview-empty { color: var(--text-muted); font-style: italic; margin: 0; text-align: center; padding: 20px 0; }

.preview-row {
    display: flex;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 15px;
}

.preview-key { font-weight: 700; color: var(--text-primary); flex-shrink: 0; }
.preview-val { color: var(--text-secondary); word-break: break-word; }

.preview-body-label { display: block; margin: 14px 0 8px; }

.preview-body {
    width: 100%;
    resize: vertical;
    padding: 14px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.preview-body:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(128,128,128,0.12); }

.preview-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
    flex-wrap: wrap;
}

.action-btn {
    border: 2px solid var(--accent);
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 11px 20px;
    font-size: 15px;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.action-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.action-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.action-primary:hover { background: var(--accent-hover); }

.copy-feedback {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 14px;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* Responsive */
@media (max-width: 800px) {
    .terminal-window { max-width: 99vw; margin: 16px auto; }
    .terminal-body { padding: 16px; }
    .email-templates { grid-template-columns: 1fr; gap: 14px; }
    .section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
    .random-btn { width: 100%; padding: 12px 20px; }
}

@media (max-width: 520px) {
    body.terminal-bg { padding: 10px; }
    .terminal-header { font-size: 1rem; padding: 12px 14px; flex-wrap: wrap; }
    .header-tools { gap: 8px; }
    .terminal-body { padding: 12px; }
    .terminal-intro { font-size: 1.1rem; padding: 16px; }
    .prank-button { font-size: 15px; }
    .checkbox-option { flex-wrap: wrap; }
    #customEmail { margin-left: 0; margin-top: 8px; width: 100%; }
    .action-btn { flex: 1; }
}