@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* CRM Marketing — Design System v2 */
/* Inspired by shadcn/Radix dark theme with Klaviyo data patterns */

/* ============ DESIGN TOKENS ============ */
:root {
    /* Layout */
    --sidebar-bg: #1D1E20;
    --sidebar-text: #939495;
    --sidebar-text-hover: #FFFFFF;
    --sidebar-active-bg: rgba(255,255,255,0.08);
    --sidebar-width: 220px;
    --header-height: 52px;

    /* Surfaces */
    --bg: #F3F6F7;
    --card-bg: #FFFFFF;
    --card-border: #EAEDEF;
    --accent-light: #F3F6F7;

    /* Text */
    --text: #1D1E20;
    --text-secondary: #5D5E60;
    --text-muted: #939495;

    /* Inputs */
    --input-bg: #FFFFFF;
    --input-border: #C4C9CF;
    --input-focus: #0B4BCB;

    /* Tables */
    --table-hover: #F3F6F7;
    --table-border: #EAEDEF;

    /* Accent */
    --accent: #1D1E20;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Semantic — Positive */
    --positive: #25935C;
    --positive-subtle-bg: #DAFBE4;
    --positive-text: #0D5939;

    /* Semantic — Negative */
    --negative: #C72326;
    --negative-subtle-bg: #FFEDEB;
    --negative-text: #931519;

    /* Semantic — Caution */
    --caution: #FDD926;
    --caution-subtle-bg: #FFFCCC;
    --caution-text: #947814;

    /* Semantic — Info */
    --info: #155FEA;
    --info-subtle-bg: #E0F2FF;
    --info-text: #0B4BCB;

    /* Semantic — Attention */
    --attention: #FB7E1E;
    --attention-subtle-bg: #FFEDD6;

    /* Brand */
    --brand-poppy: #F96353;
}

.dark {
    --bg: #000000;
    --card-bg: #0a0a0a;
    --card-border: #1a1a1a;
    --accent-light: #111111;
    --text: #e8e6e3;
    --text-secondary: #888888;
    --text-muted: #555555;
    --input-bg: #111111;
    --input-border: #222222;
    --input-focus: #ffffff;
    --table-hover: #0f0f0f;
    --table-border: #1a1a1a;
    --accent: #FFFFFF;
    --positive: #4ade80;
    --positive-subtle-bg: #052e16;
    --positive-text: #4ade80;
    --negative: #f87171;
    --negative-subtle-bg: #450a0a;
    --negative-text: #f87171;
    --caution: #facc15;
    --caution-subtle-bg: #451a03;
    --caution-text: #fbbf24;
    --info: #60a5fa;
    --info-subtle-bg: #111122;
    --info-text: #60a5fa;
    --attention: #FB7E1E;
    --attention-subtle-bg: #1a0f00;
}

/* ============ RESET & BASE ============ */
* { scrollbar-width: thin; scrollbar-color: #C4C9CF transparent; box-sizing: border-box; }
.dark * { scrollbar-color: #333 transparent; }
*::-webkit-scrollbar { width: 5px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: #C4C9CF; border-radius: 3px; }
.dark *::-webkit-scrollbar-thumb { background: #444; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    -webkit-text-size-adjust: 100%;
}

/* ============ TRANSITIONS ============ */
.transition-all { transition: all 0.2s ease; }
.transition-colors { transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease; }

/* ============ SIDEBAR ============ */
#sidebar {
    background: var(--sidebar-bg);
    width: var(--sidebar-width);
    transition: width 0.2s ease;
}

.sidebar-logo { padding: 18px 20px 14px; }
.sidebar-logo img { height: 22px; filter: brightness(0) invert(1); opacity: 0.9; }

.sidebar-search { padding: 0 12px 8px; }
.sidebar-search input {
    width: 100%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    padding: 6px 10px 6px 30px;
    font-size: 12px;
    color: #ccc;
    outline: none;
    transition: border-color 0.15s, background 0.15s;
}
.sidebar-search input::placeholder { color: #666; }
.sidebar-search input:focus { border-color: rgba(255,255,255,0.2); background: rgba(255,255,255,0.1); }

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    font-size: 13px;
    color: var(--sidebar-text);
    cursor: pointer;
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
    border-radius: 0;
}
.nav-link:hover { color: var(--sidebar-text-hover); background: var(--sidebar-active-bg); }
.nav-link.active { color: #fff; background: var(--sidebar-active-bg); font-weight: 500; }

.nav-icon { width: 20px; height: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.nav-icon svg { width: 16px; height: 16px; }

.nav-section-header { cursor: pointer; user-select: none; }

.nav-chevron { transition: transform 0.2s ease; opacity: 0.4; flex-shrink: 0; }
.nav-chevron.expanded { transform: rotate(0deg); }
.nav-chevron:not(.expanded) { transform: rotate(-90deg); }

.nav-children { overflow: hidden; max-height: 200px; transition: max-height 0.25s ease; }
.nav-children.collapsed { max-height: 0; }
.nav-child { padding-left: 46px !important; font-size: 13px; }

.nav-separator { height: 1px; background: rgba(255,255,255,0.06); margin: 6px 16px; }

.sidebar-status {
    padding: 12px 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 11px;
    color: var(--sidebar-text);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============ HEADER ============ */
header {
    height: var(--header-height);
    background: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
}

/* ============ CARDS ============ */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.card:hover {
    border-color: color-mix(in srgb, var(--card-border) 80%, var(--text) 20%);
}

.card-interactive {
    cursor: pointer;
}
.card-interactive:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.dark .card-interactive:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.stat-card:hover {
    border-color: color-mix(in srgb, var(--card-border) 80%, var(--text) 20%);
}
.stat-card .label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 400;
}
.stat-card .value {
    font-size: 32px;
    font-weight: 600;
    margin-top: 6px;
    letter-spacing: -0.5px;
}
.stat-card .sub {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ============ BUTTONS ============ */
.btn {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; pointer-events: none; }
.btn-primary {
    background: var(--accent);
    color: var(--card-bg);
}
.btn-primary:hover { opacity: 0.85; }
.btn-secondary {
    background: var(--card-bg);
    color: var(--text);
    border-color: var(--input-border);
}
.btn-secondary:hover { background: var(--accent-light); }
.btn-danger { background: var(--negative); color: #fff; border-color: var(--negative); }
.btn-danger:hover { opacity: 0.85; }
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 6px 10px;
}
.btn-ghost:hover { background: var(--accent-light); color: var(--text); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-icon {
    padding: 6px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid var(--input-border);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    color: var(--text-secondary);
}
.btn-icon:hover { background: var(--accent-light); color: var(--text); }

/* ============ INPUTS ============ */
.input {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 13px;
    color: var(--text);
    width: 100%;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input:focus { border-color: var(--input-focus); box-shadow: 0 0 0 2px color-mix(in srgb, var(--input-focus) 20%, transparent); }
.input::placeholder { color: var(--text-muted); }

select.input { appearance: auto; }

.input-error { border-color: var(--negative) !important; }
.input-error:focus { border-color: var(--negative) !important; box-shadow: 0 0 0 2px rgba(199,35,38,0.12); }

/* Search input with icon */
.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.search-input-wrapper svg {
    position: absolute;
    left: 10px;
    color: var(--text-muted);
    pointer-events: none;
}
.search-input-wrapper input {
    padding-left: 34px;
}

/* ============ TABLES ============ */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--table-border);
    font-weight: 500;
}
.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--table-border);
    color: var(--text-secondary);
}
.data-table tr { transition: background 0.1s ease; }
.data-table tr:hover td { background: var(--table-hover); color: var(--text); }

/* ============ INTERACTIVE TABLE ============ */
.itable-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.itable-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    border-bottom: 1px solid var(--card-border);
    flex-wrap: wrap;
}
.itable-row {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    gap: 12px;
    border-bottom: 1px solid var(--table-border);
    cursor: pointer;
    transition: background 0.1s ease;
}
.itable-row:hover { background: var(--table-hover); }
.itable-row:last-child { border-bottom: none; }

.itable-row-expand {
    transition: transform 0.2s ease;
    color: var(--text-muted);
    flex-shrink: 0;
}
.itable-row-expand.expanded { transform: rotate(180deg); }

.itable-detail {
    padding: 16px 16px 16px 44px;
    border-bottom: 1px solid var(--table-border);
    background: var(--accent-light);
    animation: slideDown 0.2s ease;
}

.itable-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-top: 1px solid var(--card-border);
    font-size: 12px;
    color: var(--text-muted);
}

@keyframes slideDown {
    from { opacity: 0; max-height: 0; }
    to { opacity: 1; max-height: 500px; }
}

/* ============ FILTER CHIPS ============ */
.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--input-border);
    background: transparent;
    color: var(--text-secondary);
    transition: all 0.15s ease;
}
.filter-chip:hover { border-color: var(--text-muted); color: var(--text); }
.filter-chip.active {
    background: var(--accent);
    color: var(--card-bg);
    border-color: var(--accent);
}
.filter-chip svg { width: 14px; height: 14px; }

/* ============ STATUS DOTS ============ */
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--positive); }
.dot-orange { background: var(--attention); }
.dot-red { background: var(--negative); }

/* ============ BADGES ============ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
    transition: background 0.15s ease;
}
.badge-green { background: var(--positive-subtle-bg); color: var(--positive-text); }
.badge-orange { background: var(--attention-subtle-bg); color: var(--attention); }
.badge-red { background: var(--negative-subtle-bg); color: var(--negative-text); }
.badge-blue { background: var(--info-subtle-bg); color: var(--info-text); }
.badge-gray { background: var(--accent-light); color: var(--text-muted); }
.badge-purple { background: #ede9fe; color: #7c3aed; }
.dark .badge-purple { background: #1a0a33; color: #a78bfa; }

/* ============ TOAST ============ */
#toast-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.toast {
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-size: 13px;
    animation: slideIn 0.25s ease-out;
    max-width: 340px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 8px;
}
.toast-success { background: var(--positive-subtle-bg); color: var(--positive-text); border: 1px solid var(--positive); }
.toast-error { background: var(--negative-subtle-bg); color: var(--negative-text); border: 1px solid var(--negative); }
.toast-info { background: var(--info-subtle-bg); color: var(--info-text); border: 1px solid var(--info); }

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

/* ============ MODAL ============ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.15s ease;
}
.dark .modal-overlay { background: rgba(0,0,0,0.6); }
.modal-box {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    animation: scaleIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

/* ============ THEME TOGGLE ============ */
.theme-toggle {
    display: flex;
    width: 56px;
    height: 28px;
    padding: 3px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--input-border);
    background: var(--card-bg);
    position: relative;
}
.theme-toggle-knob {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: absolute;
    top: 3px;
}
.dark .theme-toggle {
    background: #111111;
    border-color: #333;
}
.dark .theme-toggle-knob {
    transform: translateX(28px);
    background: #333;
}
.theme-toggle-knob {
    transform: translateX(0);
    background: #e5e7eb;
}
.theme-toggle-knob svg { width: 14px; height: 14px; }
.theme-toggle-icon {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    transition: opacity 0.2s ease;
}
.theme-toggle-icon.sun { right: 3px; opacity: 1; }
.theme-toggle-icon.moon { left: 3px; opacity: 0.5; }
.dark .theme-toggle-icon.sun { opacity: 0.4; }
.dark .theme-toggle-icon.moon { opacity: 1; }

/* ============ PERIOD SELECTOR ============ */
.period-btn {
    padding: 5px 14px;
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 20px;
    border: 1px solid transparent;
    background: transparent;
    transition: all 0.15s ease;
}
.period-btn:hover { color: var(--text); border-color: var(--card-border); }
.period-btn.active { background: var(--accent); color: var(--card-bg); border-color: var(--accent); }

/* ============ MODEL SWITCH ============ */
.model-btn {
    border: 1px solid var(--input-border);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s ease;
    border-radius: var(--radius-sm);
}
.model-btn:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.model-btn:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.model-btn.active { background: var(--accent) !important; color: var(--card-bg) !important; font-weight: 600; border-color: var(--accent) !important; }

/* ============ API EMAIL SLOTS ============ */
.api-email-slot { padding: 8px 12px; border-radius: var(--radius-sm); border: 1px solid var(--table-border); transition: all 0.15s; }
.api-email-slot:hover { border-color: var(--input-border); }
.api-email-slot.slot-duplicate { border-color: var(--negative) !important; background: rgba(199,35,38,0.04); }

/* ============ SEMANTIC COLORS (theme-aware) ============ */
.text-success { color: var(--positive); }
.text-warning { color: var(--caution-text); }
.text-danger  { color: var(--negative); }
.text-info    { color: var(--info); }

.bg-success { background: var(--positive); }
.bg-danger  { background: var(--negative); }
.bg-warning { background: var(--caution); }
.bg-info    { background: var(--info); }

/* ============ HOVER UTILITIES ============ */
.hover\:border-accent-muted:hover { border-color: var(--text-muted) !important; }
.hover\:text-accent:hover { color: var(--text) !important; }
.drop-active { border-color: var(--accent) !important; }

/* ============ CHANGE INDICATORS ============ */
.change-up { color: var(--positive); }
.change-down { color: var(--negative); }
.change-neutral { color: var(--text-muted); }

/* ============ DASHBOARD — KLAVIYO STYLE ============ */
.dashboard-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }

.perf-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
.perf-header .date-range { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.perf-heroes { display: flex; gap: 64px; padding: 16px 0 24px; }
.hero-metric .number { font-size: 36px; font-weight: 700; letter-spacing: -1px; color: var(--text); }
.hero-metric .label { font-size: 12px; text-transform: uppercase; color: var(--text-muted); margin-top: 4px; }

.breakdown-row { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--card-border); padding-top: 16px; margin-top: 8px; }
.breakdown-cell { padding: 8px 16px; border-right: 1px solid var(--card-border); }
.breakdown-cell:last-child { border-right: none; }
.breakdown-cell .metric-value { font-size: 18px; font-weight: 600; }
.breakdown-cell .metric-label { font-size: 11px; text-transform: uppercase; color: var(--text-muted); margin-bottom: 2px; }
.breakdown-cell .metric-sub { font-size: 12px; color: var(--text-secondary); }

.change-badge { display: inline-flex; align-items: center; gap: 3px; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500; }
.change-badge-up { background: var(--positive-subtle-bg); color: var(--positive-text); }
.change-badge-down { background: var(--negative-subtle-bg); color: var(--negative-text); }
.change-badge-neutral { background: var(--accent-light); color: var(--text-muted); }

/* ============ LEAD DETAIL GRID ============ */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}
.detail-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.detail-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    font-weight: 600;
}
.detail-value {
    font-size: 13px;
    color: var(--text);
    word-break: break-all;
}

/* ============ TAG PILLS ============ */
.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    background: var(--info-subtle-bg);
    color: var(--info-text);
    border: 1px solid transparent;
}
.tag-pill-remove {
    cursor: pointer;
    opacity: 0.6;
    font-size: 14px;
    line-height: 1;
}
.tag-pill-remove:hover { opacity: 1; }

/* ============ EMPTY STATE ============ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    gap: 12px;
}
.empty-state svg { color: var(--text-muted); opacity: 0.4; }
.empty-state-title { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
.empty-state-sub { font-size: 12px; color: var(--text-muted); max-width: 300px; }

/* ============ UTILITY CLASSES ============ */
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.bg-main { background: var(--bg) !important; }
.bg-card { background: var(--card-bg) !important; }
.bg-subtle { background: var(--accent-light) !important; }
.bg-border { background: var(--card-border) !important; }
.border-border { border-color: var(--card-border) !important; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }