/* ==========================================================================
   PM Talent Hub — design system
   Glass-card SaaS aesthetic, indigo -> cyan gradient accents.
   Light theme is the default (readability); dark is opt-in via the toggle.
   ========================================================================== */

:root {
    --bg: #f6f7fb;
    --bg-elevated: #ffffff;
    --surface: rgba(15, 23, 42, 0.035);
    --surface-hover: rgba(15, 23, 42, 0.065);
    --border: rgba(15, 23, 42, 0.10);
    --border-strong: rgba(15, 23, 42, 0.18);
    --text: #11131c;
    --text-dim: #4b5468;
    --text-faint: #7d859c;
    --accent-1: #6366f1;
    --accent-2: #0891b2;
    --gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --success: #059669;
    --warning: #b45309;
    --danger: #dc2626;
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow: 0 20px 50px -20px rgba(15, 23, 42, 0.20);
    --glow-1: rgba(99, 102, 241, 0.10);
    --glow-2: rgba(8, 145, 178, 0.08);
    --bg-translucent: rgba(246, 247, 251, 0.78);
    --font: 'Inter', 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

:root[data-theme="dark"] {
    --bg: #0b0e14;
    --bg-elevated: #10141d;
    --surface: rgba(255, 255, 255, 0.04);
    --surface-hover: rgba(255, 255, 255, 0.07);
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.16);
    --text: #eef1f8;
    --text-dim: #9aa3b8;
    --text-faint: #6b7488;
    --accent-1: #6366f1;
    --accent-2: #22d3ee;
    --success: #34d399;
    --warning: #fbbf24;
    --danger: #f87171;
    --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
    --glow-1: rgba(99, 102, 241, 0.16);
    --glow-2: rgba(34, 211, 238, 0.12);
    --bg-translucent: rgba(11, 14, 20, 0.78);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

body {
    background-image:
        radial-gradient(circle at 15% 0%, var(--glow-1), transparent 45%),
        radial-gradient(circle at 85% 15%, var(--glow-2), transparent 40%);
    background-attachment: fixed;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 0.5em; font-weight: 700; letter-spacing: -0.02em; }
p { line-height: 1.6; color: var(--text-dim); margin: 0 0 1em; }

.container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
    background: var(--gradient);
    color: #05060a;
    box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.55);
}
.btn-primary:hover { box-shadow: 0 14px 36px -8px rgba(99, 102, 241, 0.7); transform: translateY(-1px); }
.btn-outline {
    background: transparent;
    border-color: var(--border-strong);
    color: var(--text);
}
.btn-outline:hover { background: var(--surface-hover); border-color: var(--accent-2); }
.btn-ghost { background: transparent; color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); background: var(--surface); }
.btn-danger { background: rgba(248, 113, 113, 0.12); color: var(--danger); border-color: rgba(248, 113, 113, 0.3); }
.btn-danger:hover { background: rgba(248, 113, 113, 0.2); }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ---------- Cards / glass surfaces ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    backdrop-filter: blur(16px);
}
.card-hover { transition: border-color 0.2s ease, transform 0.2s ease; }
.card-hover:hover { border-color: var(--border-strong); transform: translateY(-2px); }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-dim);
}
.badge-gradient {
    background: var(--gradient);
    color: #05060a;
    border: none;
}
.badge-success { background: rgba(52, 211, 153, 0.14); color: var(--success); border-color: rgba(52, 211, 153, 0.3); }
.badge-warning { background: rgba(251, 191, 36, 0.14); color: var(--warning); border-color: rgba(251, 191, 36, 0.3); }
.badge-danger { background: rgba(248, 113, 113, 0.14); color: var(--danger); border-color: rgba(248, 113, 113, 0.3); }

/* ---------- Forms ---------- */
label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-dim); margin-bottom: 6px; }
.field { margin-bottom: 18px; }
.input, select.input, textarea.input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.95rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input:focus, select.input:focus, textarea.input:focus {
    outline: none;
    border-color: var(--accent-2);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}
textarea.input { resize: vertical; min-height: 100px; }
.input-hint { font-size: 0.8rem; color: var(--text-faint); margin-top: 6px; }
.checkbox-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 14px; border-radius: 999px;
    border: 1px solid var(--border); background: var(--bg-elevated);
    font-size: 0.85rem; cursor: pointer; color: var(--text-dim);
}
.checkbox-pill input { accent-color: var(--accent-1); }

/* ---------- Progress ---------- */
.progress-bar { height: 8px; border-radius: 999px; background: var(--bg-elevated); overflow: hidden; }
.progress-bar-fill { height: 100%; background: var(--gradient); border-radius: 999px; }

/* ---------- Top navigation (public) ---------- */
.topnav {
    position: sticky; top: 0; z-index: 50;
    background: var(--bg-translucent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}
.topnav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; max-width: 1180px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; }
.brand-mark {
    width: 34px; height: 34px; border-radius: 10px;
    background: var(--gradient);
    display: flex; align-items: center; justify-content: center;
    color: #05060a; font-weight: 800;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text-dim); font-weight: 500; font-size: 0.92rem; transition: color 0.15s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch { position: relative; }
.lang-switch summary { list-style: none; cursor: pointer; }
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 9px 12px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface);
    font-size: 0.85rem; font-weight: 600; color: var(--text-dim);
}
.lang-menu {
    position: absolute; top: calc(100% + 8px); right: 0;
    background: var(--bg-elevated); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 6px; min-width: 170px;
    box-shadow: var(--shadow); z-index: 60;
    max-height: 320px; overflow-y: auto;
}
[dir="rtl"] .lang-menu { right: auto; left: 0; }
.lang-menu a { display: block; padding: 8px 12px; border-radius: 8px; font-size: 0.88rem; color: var(--text-dim); }
.lang-menu a:hover { background: var(--surface-hover); color: var(--text); }
.mobile-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }

/* Public site mobile nav (hamburger + slide-down panel) */
.nav-burger {
    display: none; flex-direction: column; justify-content: center; align-items: center;
    gap: 4px; width: 38px; height: 38px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface); cursor: pointer; flex-shrink: 0;
}
.nav-burger span { width: 17px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav-mobile-panel {
    display: none; flex-direction: column; gap: 4px;
    padding: 10px 16px 18px; border-top: 1px solid var(--border);
    background: var(--bg-elevated);
}
.nav-mobile-panel a:not(.btn) { padding: 11px 6px; font-size: 0.95rem; color: var(--text-dim); font-weight: 500; border-radius: var(--radius-sm); }
.nav-mobile-panel a.active { color: var(--text); font-weight: 700; }
.nav-mobile-panel a:not(.btn):hover { background: var(--surface); }
.nav-mobile-divider { height: 1px; background: var(--border); margin: 6px 0 10px; }
.nav-mobile-panel .btn { margin-bottom: 8px; text-align: center; justify-content: center; }

.theme-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface);
    color: var(--text-dim); cursor: pointer; flex-shrink: 0;
}
.theme-toggle:hover { color: var(--text); background: var(--surface-hover); }
.theme-toggle .icon-dark { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-light { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-dark { display: inline-flex; }

/* ---------- Hero ---------- */
.hero { padding: 90px 0 70px; text-align: center; }
.hero h1 { font-size: clamp(2.1rem, 4.5vw, 3.5rem); max-width: 820px; margin: 0.4em auto 0.5em; }
.hero p.lead { max-width: 640px; margin: 0 auto 2em; font-size: 1.08rem; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 720px; margin: 0 auto; }
.stat-box { padding: 20px; }
.stat-num { font-size: 2rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-label { font-size: 0.82rem; color: var(--text-faint); margin-top: 4px; }

/* ---------- Sections ---------- */
.section { padding: 70px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.step-card { position: relative; padding-top: 44px; }
.step-num {
    position: absolute; top: -18px; left: 24px;
    width: 40px; height: 40px; border-radius: 12px;
    background: var(--gradient); color: #05060a;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.05rem;
    box-shadow: 0 8px 20px -6px rgba(99, 102, 241, 0.6);
}
[dir="rtl"] .step-num { left: auto; right: 24px; }

.platform-chip {
    display: flex; align-items: center; gap: 12px;
    padding: 16px 18px;
}
.platform-icon {
    width: 40px; height: 40px; border-radius: 10px;
    background: var(--bg-elevated); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent-2); flex-shrink: 0;
}

.cta-banner {
    text-align: center; padding: 60px 40px; border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.16), rgba(34, 211, 238, 0.1));
    border: 1px solid var(--border-strong);
}

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 50px 0 30px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-grid h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); }
.footer-grid a { display: block; color: var(--text-dim); font-size: 0.92rem; margin-bottom: 10px; }
.footer-grid a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; border-top: 1px solid var(--border); color: var(--text-faint); font-size: 0.82rem; flex-wrap: wrap; gap: 10px; }

/* ---------- Auth pages ---------- */
.auth-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 40px 20px; }
.auth-card { width: 100%; max-width: 460px; }
.auth-card.wide { max-width: 640px; }
.role-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 24px; }
.role-option {
    padding: 16px; border-radius: var(--radius-sm); border: 1px solid var(--border);
    cursor: pointer; text-align: left; background: var(--bg-elevated);
    transition: border-color 0.15s ease, background 0.15s ease;
}
[dir="rtl"] .role-option { text-align: right; }
.role-option strong { display: block; margin-bottom: 4px; }
.role-option small { color: var(--text-faint); }
.role-option.active { border-color: var(--accent-2); background: rgba(34, 211, 238, 0.08); }
.role-option input { display: none; }

/* ---------- App shell (dashboards) ---------- */
.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
    width: 260px; flex-shrink: 0; background: var(--bg-elevated);
    border-inline-end: 1px solid var(--border); padding: 24px 16px;
    display: flex; flex-direction: column; gap: 4px;
    position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.app-sidebar .brand { padding: 0 10px 24px; }
.side-link {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 14px; border-radius: var(--radius-sm);
    color: var(--text-dim); font-size: 0.92rem; font-weight: 500;
}
.side-link:hover { background: var(--surface); color: var(--text); }
.side-link.active { background: var(--surface-hover); color: var(--text); border: 1px solid var(--border); }
.side-link .icon { width: 18px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; }
.side-section-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); margin: 18px 14px 6px; }
.app-main { flex: 1; min-width: 0; }
.app-topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 32px; border-bottom: 1px solid var(--border);
    position: sticky; top: 0; background: var(--bg-translucent); backdrop-filter: blur(14px); z-index: 40;
}
.app-content { padding: 32px; max-width: 1180px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; flex-wrap: wrap; gap: 16px; }
.page-head h1 { font-size: 1.6rem; margin: 0; }
.avatar {
    width: 38px; height: 38px; border-radius: 50%;
    background: var(--gradient); display: flex; align-items: center; justify-content: center;
    color: #05060a; font-weight: 700; font-size: 0.9rem;
    cursor: pointer; list-style: none; user-select: none;
}
.avatar::-webkit-details-marker { display: none; }
.user-dropdown { position: relative; }
.user-dropdown-menu {
    position: absolute; right: 0; top: calc(100% + 8px);
    background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0,0,0,.18); padding: 12px 14px; min-width: 190px; z-index: 200;
}
.user-dropdown-name { font-weight: 700; font-size: .88rem; margin-bottom: 2px; }
.user-menu { display: flex; align-items: center; gap: 12px; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
[dir="rtl"] th, [dir="rtl"] td { text-align: right; }
th { color: var(--text-faint); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
tbody tr:hover { background: var(--surface); }

/* ---------- Alerts ---------- */
.alert { padding: 14px 18px; border-radius: var(--radius-sm); margin-bottom: 18px; font-size: 0.9rem; border: 1px solid; }
.alert-success { background: rgba(52, 211, 153, 0.1); border-color: rgba(52, 211, 153, 0.3); color: var(--success); }
.alert-error { background: rgba(248, 113, 113, 0.1); border-color: rgba(248, 113, 113, 0.3); color: var(--danger); }

/* ---------- Competency bars ---------- */
.competency-row { display: flex; align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.competency-row:last-child { border-bottom: none; }
.competency-name { width: 170px; flex-shrink: 0; font-weight: 600; font-size: 0.92rem; }
.competency-track { flex: 1; }
.competency-score { width: 54px; text-align: right; font-weight: 700; color: var(--accent-2); flex-shrink: 0; }
[dir="rtl"] .competency-score { text-align: left; }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.text-dim { color: var(--text-dim); }
.text-faint { color: var(--text-faint); }
.mt-0 { margin-top: 0; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .app-sidebar { position: fixed; left: 0; top: 0; z-index: 80; transform: translateX(-100%); transition: transform 0.2s ease; height: 100%; }
    [dir="rtl"] .app-sidebar { left: auto; right: 0; transform: translateX(100%); }
    .app-sidebar.open { transform: translateX(0); }
    .mobile-toggle { display: inline-flex; }
    .app-topbar { padding: 14px 20px; }
    .app-content { padding: 24px 20px; }
    /* overlay when sidebar open */
    .app-sidebar.open::after { content:''; position:fixed; inset:0; background:rgba(0,0,0,.35); z-index:-1; }
}
@media (max-width: 640px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; }
    .footer-grid { grid-template-columns: 1fr; }
    .app-content { padding: 16px; }
    .app-topbar { padding: 12px 16px; }
    .role-toggle { grid-template-columns: 1fr; }
    /* tables scroll on mobile */
    .card table, table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    /* action button cells wrap */
    td.flex { flex-wrap: wrap; gap: 6px; }
    /* competency rows */
    .competency-name { width: 110px; font-size: .82rem; }
    /* page head stacks */
    .page-head { flex-direction: column; align-items: flex-start; }
    .page-head h1 { font-size: 1.3rem; }
    /* guide tabs */
    .guide-tabs { gap: 0; }
    .guide-tab { padding: 10px 14px; font-size: .82rem; }
    /* cred grid single col */
    .cred-grid { grid-template-columns: 1fr; }
    /* inline grids used in admin detail */
    .grid[style*="grid-template-columns: 1fr 1fr"] { grid-template-columns: 1fr !important; }
    /* topnav */
    .topnav-inner { padding: 0 16px; }
    .nav-actions { gap: 8px; }
    .brand { font-size: 0.98rem; }
    .lang-switch { display: none; }
    .nav-auth-link { display: none; }
    .nav-burger { display: inline-flex; }
    .nav-mobile-panel:not([hidden]) { display: flex; }
    /* hero */
    .hero-section { padding: 60px 16px; }
    .hero-section h1 { font-size: 2rem; }
}
@media (max-width: 420px) {
    .stats-row { grid-template-columns: 1fr; }
    .btn-sm { padding: 7px 12px; font-size: .78rem; }
    .cred-grid { grid-template-columns: 1fr; }
    .guide-tab { padding: 8px 10px; font-size: .78rem; }
}