/* ============================================================
   Marketing Tracker — Design Tokens & Base
   Direction: Flight Departure Board (Operate mode)
   ============================================================ */

:root {
    /* --- Ground --- */
    --color-surface: #f4f4f0;
    --color-surface-raised: #ffffff;
    --color-surface-sunken: #eaece6;

    /* --- Sidebar (Terminal Directory) --- */
    --color-sidebar: #1a1d23;
    --color-sidebar-text: #cfd1d4;
    --color-sidebar-hover: #282b33;
    --color-sidebar-active: #33363f;
    --color-sidebar-accent: #5eead4;

    /* --- Text --- */
    --color-text: #1a1d23;
    --color-text-secondary: #555962;
    --color-text-tertiary: #888c95;
    --color-text-inverse: #f4f4f0;

    /* --- Status Triad (Departure Board) --- */
    --color-entered: #15803d;
    --color-entered-bg: #dcfce7;
    --color-entered-fg: #14532d;
    --color-no-activity: #b45309;
    --color-no-activity-bg: #fef3c7;
    --color-no-activity-fg: #78350f;
    --color-missing: #dc2626;
    --color-missing-bg: #fee2e2;
    --color-missing-fg: #7f1d1d;

    /* --- Accent (Primary Actions) --- */
    --color-accent: #0d9488;
    --color-accent-hover: #0f766e;
    --color-accent-active: #115e59;
    --color-accent-bg: #ccfbf1;

    /* --- Borders --- */
    --color-border: #d5d7d1;
    --color-border-strong: #a8aaa3;
    --color-border-focus: var(--color-accent);

    /* --- ROAS threshold tints --- */
    --status-red-bg: hsl(0, 70%, 95%);
    --status-amber-bg: hsl(40, 80%, 93%);
    --status-green-bg: hsl(140, 60%, 93%);
    --text-muted: hsl(0, 0%, 60%);

    /* --- Error --- */
    --color-error: #dc2626;
    --color-error-bg: #fee2e2;

    /* --- Warning --- */
    --color-warning: #d97706;
    --color-warning-bg: #fef3c7;

    /* --- Typography --- */
    --font-family: 'Inter', 'IBM Plex Sans Arabic', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --line-height-tight: 1.25;
    --line-height-base: 1.5;

    /* --- Spacing (4px base) --- */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* --- Radii --- */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* --- Shadows --- */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.1);

    /* --- Layout --- */
    --sidebar-width: 240px;
    --sidebar-collapsed: 64px;
    --topbar-height: 56px;

    /* --- Transitions --- */
    --transition-fast: 150ms ease-out;
    --transition-base: 200ms ease-out;
}

/* ============================================================
   Reset
   ============================================================ */

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

html {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100dvh;
}

img, svg {
    display: block;
    max-inline-size: 100%;
}

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

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

button {
    font: inherit;
    color: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font: inherit;
    color: inherit;
}

table {
    border-collapse: collapse;
}

:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}

/* ============================================================
   App Shell — Sidebar + Content
   ============================================================ */

.app-shell {
    display: flex;
    min-height: 100dvh;
}

.app-sidebar {
    position: fixed;
    inset-block: 0;
    inset-inline-start: 0;
    inline-size: var(--sidebar-width);
    background: var(--color-sidebar);
    color: var(--color-sidebar-text);
    display: flex;
    flex-direction: column;
    z-index: 40;
    transition: inline-size var(--transition-base);
    overflow-x: hidden;
}

.app-sidebar__header {
    padding: var(--space-5) var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    border-block-end: 1px solid rgba(255, 255, 255, 0.08);
    min-block-size: var(--topbar-height);
}

.app-sidebar__brand {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: #fff;
    white-space: nowrap;
}

.app-sidebar__nav {
    flex: 1;
    padding: var(--space-3) var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.app-sidebar__link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-sidebar-text);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: background var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

.app-sidebar__link:hover {
    background: var(--color-sidebar-hover);
    color: #fff;
}

.app-sidebar__link--active {
    background: var(--color-sidebar-active);
    color: #fff;
}

.app-sidebar__link-icon {
    flex-shrink: 0;
    inline-size: 20px;
    block-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-sidebar__footer {
    padding: var(--space-4) var(--space-5);
    border-block-start: 1px solid rgba(255, 255, 255, 0.08);
    font-size: var(--font-size-sm);
}

.app-sidebar__user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.app-sidebar__avatar {
    inline-size: 32px;
    block-size: 32px;
    border-radius: 50%;
    background: var(--color-sidebar-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-sidebar-accent);
    flex-shrink: 0;
}

.app-sidebar__user-info {
    overflow: hidden;
}

.app-sidebar__user-name {
    font-weight: var(--font-weight-medium);
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.app-sidebar__user-role {
    font-size: var(--font-size-xs);
    color: var(--color-sidebar-text);
}

/* --- Content area --- */

.app-content {
    flex: 1;
    margin-inline-start: var(--sidebar-width);
}

.app-topbar {
    position: sticky;
    inset-block-start: 0;
    block-size: var(--topbar-height);
    background: var(--color-surface-raised);
    border-block-end: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-inline: var(--space-6);
    z-index: 30;
}

.app-topbar__title {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
}

.app-topbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.app-main {
    padding: var(--space-6);
}

/* --- Sidebar collapse (mobile) --- */

.app-sidebar__toggle {
    display: none;
    padding: var(--space-2);
    color: var(--color-text);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
}

@media (max-width: 1023px) {
    .app-sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

    [dir="rtl"] .app-sidebar {
        transform: translateX(100%);
    }

    .app-sidebar--open,
    [dir="rtl"] .app-sidebar--open {
        transform: translateX(0);
    }

    .app-content {
        margin-inline-start: 0;
    }

    .app-sidebar__toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .app-sidebar__overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 39;
        display: none;
    }

    .app-sidebar--open ~ .app-sidebar__overlay {
        display: block;
    }
}

/* ============================================================
   Locale Switcher
   ============================================================ */

.locale-switcher {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    font-size: var(--font-size-sm);
}

.locale-switcher__btn {
    padding: var(--space-1) var(--space-3);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    background: transparent;
    transition: background var(--transition-fast), color var(--transition-fast);
    border: none;
    cursor: pointer;
}

.locale-switcher__btn:hover {
    background: var(--color-surface-sunken);
}

.locale-switcher__btn--active {
    background: var(--color-accent);
    color: #fff;
}

.locale-switcher__btn--active:hover {
    background: var(--color-accent-hover);
}

/* ============================================================
   Utility classes
   ============================================================ */

.sr-only {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.numeric-cell {
    direction: ltr;
    unicode-bidi: embed;
    text-align: end;
    font-variant-numeric: tabular-nums;
}

/* ============================================================
   Status badges
   ============================================================ */

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: 100px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: 1;
}

.status-badge--entered {
    background: var(--color-entered-bg);
    color: var(--color-entered-fg);
}

.status-badge--no-activity {
    background: var(--color-no-activity-bg);
    color: var(--color-no-activity-fg);
}

.status-badge--missing {
    background: var(--color-missing-bg);
    color: var(--color-missing-fg);
}

.status-badge__dot {
    inline-size: 6px;
    block-size: 6px;
    border-radius: 50%;
}

.status-badge--entered .status-badge__dot { background: var(--color-entered); }
.status-badge--no-activity .status-badge__dot { background: var(--color-no-activity); }
.status-badge--missing .status-badge__dot { background: var(--color-missing); }

/* ============================================================
   Stat cards
   ============================================================ */

.stat-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

.stat-card {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.stat-card__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-block-end: var(--space-1);
}

.stat-card__value {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    font-variant-numeric: tabular-nums;
    direction: ltr;
    unicode-bidi: embed;
}

@media (max-width: 767px) {
    .stat-bar {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================================
   Client cards
   ============================================================ */

.client-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.client-card {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: block;
    color: inherit;
    text-decoration: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.client-card:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-md);
    color: inherit;
}

.client-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-block-end: var(--space-4);
}

.client-card__name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.client-card__body {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.client-card__platforms {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.client-card__platform-tag {
    font-size: var(--font-size-xs);
    padding: var(--space-1) var(--space-2);
    background: var(--color-surface-sunken);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

.client-card__metrics {
    display: flex;
    gap: var(--space-6);
    font-size: var(--font-size-sm);
}

.client-card__metric {
    text-align: end;
}

.client-card__metric-label {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
}

.client-card__metric-value {
    font-weight: var(--font-weight-semibold);
    font-variant-numeric: tabular-nums;
    direction: ltr;
    unicode-bidi: embed;
}

.client-card__footer {
    margin-block-start: var(--space-4);
    padding-block-start: var(--space-4);
    border-block-start: 1px solid var(--color-border);
}

.client-card__heatmap {
    display: flex;
    gap: var(--space-2);
    justify-content: flex-end;
}

.client-card__heatmap-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    cursor: pointer;
    text-decoration: none;
}

.client-card__heatmap-dot {
    inline-size: 24px;
    block-size: 24px;
    border-radius: var(--radius-sm);
    transition: transform var(--transition-fast);
}

.client-card__heatmap-day:hover .client-card__heatmap-dot {
    transform: scale(1.15);
}

.client-card__heatmap-dot--entered { background: var(--color-entered); }
.client-card__heatmap-dot--no-activity { background: var(--color-no-activity-bg); border: 1px solid var(--color-no-activity); }
.client-card__heatmap-dot--missing { background: var(--color-missing-bg); border: 1px solid var(--color-missing); }

/* ============================================================
   Page header
   ============================================================ */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-block-end: var(--space-6);
    flex-wrap: wrap;
}

.page-header__back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.page-header__back:hover {
    color: var(--color-accent);
}

.page-header__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

.page-header__subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-block-start: var(--space-1);
}

/* --- Month navigator --- */

.month-nav {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
}

.month-nav__btn {
    inline-size: 36px;
    block-size: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-raised);
    color: var(--color-text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.month-nav__btn:hover {
    background: var(--color-surface-sunken);
    color: var(--color-text);
}

.month-nav__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.month-nav__label {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    min-inline-size: 140px;
    text-align: center;
}

/* --- Month navigator (standalone) --- */

.month-navigator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-block-end: var(--space-6);
}

.month-navigator__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    min-inline-size: 160px;
    text-align: center;
}

.month-navigator__arrow {
    inline-size: 36px;
    block-size: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-raised);
    color: var(--color-text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.month-navigator__arrow:hover {
    background: var(--color-surface-sunken);
    color: var(--color-text);
}

.month-navigator__arrow--disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* --- Page header inline variant --- */

.page-header--inline {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.page-header--inline .page-header__back {
    display: inline-flex;
    align-items: center;
    color: var(--color-text-secondary);
}

.page-header--inline .page-header__back:hover {
    color: var(--color-accent);
}

.app-main {
    padding: var(--space-6);
}