/* PD — Personal Dossier
   Mobile-first CSS with dark/light theme */

/* ========== CSS Variables ========== */
:root {
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 16px;
    --shadow: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
    --transition: 0.2s ease;
    --max-width: 600px;
}

/* Dark theme (default) */
[data-theme="dark"] {
    --bg: #0f0f14;
    --bg-card: #1a1a24;
    --bg-input: #22222e;
    --bg-hover: #2a2a38;
    --bg-header: #141420;
    --text: #e8e8ed;
    --text-muted: #8888a0;
    --text-dim: #55556a;
    --border: #2a2a3a;
    --border-focus: #6366f1;
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-bg: rgba(99,102,241,0.12);
    --danger: #f87171;
    --danger-bg: rgba(248,113,113,0.12);
    --warning: #fbbf24;
    --warning-bg: rgba(251,191,36,0.12);
    --success: #34d399;
    --tag-bg: #2a2a3a;
    --tag-active-bg: #4338ca;
    --overdue-bg: #1c1520;
    --overdue-border: #7c3aed;
    --banner-bg: #451a1a;
    --banner-text: #fca5a5;
}

/* Light theme */
[data-theme="light"] {
    --bg: #f5f5f7;
    --bg-card: #ffffff;
    --bg-input: #f0f0f4;
    --bg-hover: #eaeaef;
    --bg-header: #ffffff;
    --text: #1a1a2e;
    --text-muted: #6b7280;
    --text-dim: #9ca3af;
    --border: #e0e0e8;
    --border-focus: #6366f1;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-bg: rgba(99,102,241,0.08);
    --danger: #ef4444;
    --danger-bg: rgba(239,68,68,0.08);
    --warning: #d97706;
    --warning-bg: rgba(217,119,6,0.08);
    --success: #10b981;
    --tag-bg: #e8e8f0;
    --tag-active-bg: #6366f1;
    --overdue-bg: #faf5ff;
    --overdue-border: #8b5cf6;
    --banner-bg: #fef2f2;
    --banner-text: #dc2626;
}

/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

[x-cloak] { display: none !important; }

/* ========== Notification Banner ========== */
.notification-banner {
    background: var(--banner-bg);
    color: var(--banner-text);
    padding: 0.75rem 1rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

/* ========== Header ========== */
.app-header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* ========== Main Content ========== */
.main-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 0 5rem 0;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    line-height: 1.4;
    text-decoration: none;
    gap: 0.375rem;
    -webkit-appearance: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }

.btn-muted {
    background: var(--bg-input);
    color: var(--text-muted);
}
.btn-muted:hover { background: var(--bg-hover); }

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
}
.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    border-radius: var(--radius-sm);
}

.btn-full { width: 100%; }

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.btn-icon:hover { color: var(--text); background: var(--bg-hover); }

.btn-delete { color: var(--text-dim); font-size: 0.75rem; }
.btn-delete:hover { color: var(--danger); }

.inline-form { display: inline; }

/* ========== Forms ========== */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text);
    background: var(--bg-input);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition);
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-bg);
}

.form-input-sm { padding: 0.375rem 0.625rem; font-size: 0.875rem; }

.form-select { padding-right: 2rem; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238888a0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.75rem center; }
.form-select-sm { padding: 0.375rem 2rem 0.375rem 0.625rem; font-size: 0.875rem; }

.form-textarea { resize: vertical; min-height: 80px; }

.form-input-file { font-size: 0.875rem; padding: 0.5rem; }

.form-help { font-size: 0.75rem; color: var(--text-dim); margin-top: 0.25rem; display: block; }

.form-check { display: flex; align-items: center; gap: 0.375rem; font-size: 0.875rem; color: var(--text-muted); cursor: pointer; margin-top: 0.5rem; }

.form-row { display: flex; gap: 0.75rem; }
.flex-1 { flex: 1; }

.form-actions { margin-top: 1.5rem; }

.input-error { border-color: var(--danger); }

.contact-form { padding: 1rem; }

/* ========== Alerts ========== */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin: 0.75rem 1rem;
    font-size: 0.875rem;
}
.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* ========== Search Bar ========== */
.search-bar {
    padding: 0.75rem 1rem;
    position: sticky;
    top: 49px;
    background: var(--bg);
    z-index: 40;
    border-bottom: 1px solid var(--border);
}

.search-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.search-input-wrap {
    flex: 1;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    pointer-events: none;
}

.search-input {
    padding-left: 2.5rem !important;
}

.search-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
}

.toggle-label { font-weight: 500; }

/* ========== Tag Pills ========== */
.tag-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
}

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--tag-bg);
    color: var(--text-muted);
    border-radius: 100px;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.tag-pill:hover, .tag-pill.active {
    background: var(--tag-active-bg);
    color: #fff;
}

.tag-clear { font-style: italic; }

/* ========== Overdue Section ========== */
.overdue-section {
    margin: 0.75rem 1rem;
    background: var(--overdue-bg);
    border: 1px solid var(--overdue-border);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
}

.overdue-title {
    color: var(--overdue-border);
    margin-bottom: 0.5rem;
}

.overdue-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0;
    border-bottom: 1px solid var(--border);
    gap: 0.5rem;
}

.overdue-card:last-child { border-bottom: none; }

.overdue-info { flex: 1; min-width: 0; }

.overdue-name {
    display: block;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.overdue-meta {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.overdue-actions {
    display: flex;
    gap: 0.375rem;
    flex-shrink: 0;
}

/* ========== Section Titles ========== */
.section-title {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    padding: 0.75rem 1rem 0.375rem;
}

.subsection-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

/* ========== Contacts List ========== */
.contacts-list {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    margin: 0 1rem;
    overflow: hidden;
}

.contact-row {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.contact-row:last-child { border-bottom: none; }
.contact-row:hover, .contact-row:active { background: var(--bg-hover); }

.contact-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    flex-shrink: 0;
    overflow: hidden;
    background: var(--accent-bg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-img { width: 100%; height: 100%; object-fit: cover; }

.avatar-initials {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
}

.contact-info { flex: 1; min-width: 0; }

.contact-name {
    display: block;
    font-weight: 600;
    font-size: 0.9375rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-meta {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-chevron {
    color: var(--text-dim);
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* ========== FAB (Floating Action Button) ========== */
.fab {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 1.75rem;
    font-weight: 300;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition);
    z-index: 30;
    text-decoration: none;
    line-height: 1;
}

.fab:hover { background: var(--accent-hover); transform: scale(1.05); color: #fff; }
.fab-active { transform: rotate(45deg); }

.fab-group { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 30; }

.fab-options {
    position: absolute;
    bottom: 4rem;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.fab-option {
    background: var(--bg-card);
    color: var(--text);
    padding: 0.625rem 1rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    white-space: nowrap;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.fab-option:hover { background: var(--bg-hover); color: var(--text); }

/* ========== Detail Page ========== */
.detail-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
}

.topbar-title {
    font-size: 1rem;
    font-weight: 600;
}

.contact-header {
    text-align: center;
    padding: 1rem;
}

.contact-photo-lg {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    margin: 0 auto 0.75rem;
    overflow: hidden;
}

.contact-photo-lg img { width: 100%; height: 100%; object-fit: cover; }

.avatar-initials-lg {
    background: var(--accent-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
}

.contact-detail-name {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.contact-tier-badge {
    display: inline-block;
    margin-top: 0.375rem;
    padding: 0.125rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--accent-bg);
    color: var(--accent);
    border-radius: 100px;
}

.tier-days { font-weight: 400; opacity: 0.75; }

.last-contacted {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.375rem;
}

/* Quick actions row */
.quick-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: background var(--transition);
}

.quick-action-btn:hover { background: var(--accent-bg); color: var(--accent); }

/* ========== Tabs ========== */
.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--border);
    padding: 0 0.5rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-btn {
    flex: 1;
    padding: 0.75rem 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    font-family: inherit;
}

.tab-btn:hover { color: var(--text); }
.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-panel { padding: 1rem; }

/* ========== Info Grid ========== */
.info-grid { display: flex; flex-direction: column; gap: 0.625rem; }

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 0.375rem 0;
    border-bottom: 1px solid var(--border);
}

.info-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.info-value { font-size: 0.9375rem; text-align: right; }

.info-block {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.info-text {
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-top: 0.375rem;
    color: var(--text);
}

.detail-tags { margin-top: 1rem; }

/* ========== Personal Notes ========== */
.personal-notes-content {
    font-size: 0.9375rem;
    line-height: 1.7;
    padding: 0;
    color: var(--text);
}

/* ========== Timeline ========== */
.timeline { margin-top: 1rem; }

.timeline-item {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    align-items: flex-start;
}

.timeline-item:last-child { border-bottom: none; }

.timeline-icon { font-size: 1.25rem; flex-shrink: 0; padding-top: 0.125rem; }

.timeline-content { flex: 1; min-width: 0; }

.timeline-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.timeline-notes {
    font-size: 0.875rem;
    line-height: 1.5;
    margin-top: 0.25rem;
    color: var(--text);
    word-wrap: break-word;
}

/* Quick add */
.quick-add-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.quick-add-form { display: flex; flex-direction: column; gap: 0.5rem; }

/* ========== Reminders ========== */
.reminder-list { display: flex; flex-direction: column; gap: 0; }

.reminder-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0;
    border-bottom: 1px solid var(--border);
    gap: 0.5rem;
}

.reminder-item:last-child { border-bottom: none; }
.reminder-item.muted { opacity: 0.6; }

.reminder-info { flex: 1; min-width: 0; }

.reminder-text {
    display: block;
    font-size: 0.875rem;
    word-wrap: break-word;
}

.reminder-time {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ========== Load More ========== */
.load-more {
    text-align: center;
    padding: 0.75rem 0;
}

/* ========== Tag Editor ========== */
.tag-editor { position: relative; }

.tag-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-bottom: 0.5rem;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    background: var(--accent-bg);
    color: var(--accent);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
}

.tag-remove {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0 0.125rem;
    opacity: 0.7;
}

.tag-remove:hover { opacity: 1; }

.tag-input-wrap { position: relative; }

.tag-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 20;
    max-height: 200px;
    overflow-y: auto;
}

.tag-suggestion {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    text-align: left;
    background: none;
    border: none;
    color: var(--text);
    font-size: 0.875rem;
    cursor: pointer;
    font-family: inherit;
}

.tag-suggestion:hover { background: var(--bg-hover); }

/* ========== Typeahead ========== */
.typeahead-wrap { position: relative; }

.typeahead-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 20;
    max-height: 250px;
    overflow-y: auto;
}

.typeahead-item {
    display: block;
    width: 100%;
    padding: 0.625rem 0.75rem;
    text-align: left;
    background: none;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    font-size: 0.9375rem;
    cursor: pointer;
    font-family: inherit;
}

.typeahead-item:last-child { border-bottom: none; }
.typeahead-item:hover { background: var(--bg-hover); }

.selected-contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--accent-bg);
    border-radius: var(--radius);
    margin-top: 0.375rem;
    font-weight: 500;
    color: var(--accent);
}

/* ========== Photo Preview ========== */
.current-photo {
    margin-bottom: 0.75rem;
}

.photo-preview {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem 1rem;
    font-size: 0.9375rem;
}

/* ========== Login ========== */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}

.login-container {
    width: 100%;
    max-width: 380px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
}

.login-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

/* ========== TOTP Setup ========== */
.totp-secret {
    display: block;
    text-align: center;
    font-size: 0.8125rem;
    padding: 0.5rem;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    word-break: break-all;
    margin-top: 0.375rem;
    color: var(--text);
}

.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.8125rem; }
.text-center { text-align: center; }

/* ========== Theme Toggle Icons ========== */
[data-theme="dark"] .icon-sun { display: inline; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: inline; }

/* ========== Desktop Enhancement ========== */
@media (min-width: 768px) {
    .main-content { padding-top: 0.5rem; }
    .overdue-section { margin: 1rem; }
    .contacts-list { margin: 0 1rem; }
}