/* ============================================================
   CTC-PM — Feuille de style principale
   Identité : dégradé bleu marine → magenta → orange → or
   ============================================================ */

:root {
    --ctc-navy:      #1B1464;
    --ctc-indigo:    #4B1D8C;
    --ctc-magenta:   #C41E7A;
    --ctc-pink:      #E31C79;
    --ctc-orange:    #F7941D;
    --ctc-gold:      #FDB933;
    --ctc-dark:      #171321;
    --ctc-ink:       #221D33;
    --ctc-bg:        #F5F5F8;
    --ctc-card:      #FFFFFF;
    --ctc-border:    #E7E5EF;
    --ctc-muted:     #837F94;

    --ctc-gradient: linear-gradient(135deg, var(--ctc-navy) 0%, var(--ctc-magenta) 50%, var(--ctc-orange) 78%, var(--ctc-gold) 100%);
    --ctc-gradient-soft: linear-gradient(135deg, rgba(27,20,100,.08) 0%, rgba(227,28,121,.08) 50%, rgba(247,148,29,.08) 100%);

    --font-display: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }

body {
    font-family: var(--font-body);
    background: var(--ctc-bg);
    color: var(--ctc-ink);
    font-size: 0.94rem;
}

h1, h2, h3, h4, h5, h6, .font-display {
    font-family: var(--font-display);
    color: var(--ctc-dark);
    font-weight: 600;
    letter-spacing: -0.01em;
}

a { text-decoration: none; }

/* ---------------- Layout général ---------------- */

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

.app-sidebar {
    width: 264px;
    flex-shrink: 0;
    background: var(--ctc-dark);
    background-image:
        radial-gradient(circle at 0% 0%, rgba(227,28,121,.25), transparent 45%),
        radial-gradient(circle at 100% 100%, rgba(247,148,29,.20), transparent 50%);
    color: #EDEBF5;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.app-sidebar .brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: 1.35rem 1.25rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.app-sidebar .brand img { height: 34px; width: auto; }

.app-sidebar .brand-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .95rem;
    line-height: 1.15;
    color: #fff;
}
.app-sidebar .brand-text small {
    display: block;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: .68rem;
    color: #B8B3CC;
    letter-spacing: .02em;
}

.app-sidebar .nav-section-label {
    font-size: .68rem;
    text-transform: uppercase;
    color: #7C7791;
    padding: 1rem 1.25rem .35rem;
    letter-spacing: .06em;
}

.app-sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .58rem 1.25rem;
    color: #C9C5DA;
    font-size: .87rem;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: background .15s ease, color .15s ease;
}
.app-sidebar .nav-link i { width: 18px; text-align: center; font-size: .95rem; opacity: .85; }
.app-sidebar .nav-link:hover {
    background: rgba(255,255,255,.05);
    color: #fff;
}
.app-sidebar .nav-link.active {
    background: rgba(255,255,255,.07);
    color: #fff;
    border-left-color: var(--ctc-pink);
}

.app-sidebar .user-box {
    margin-top: auto;
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    gap: .6rem;
}

.app-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.app-topbar {
    height: 64px;
    background: var(--ctc-card);
    border-bottom: 1px solid var(--ctc-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 20;
}

.app-content {
    padding: 1.75rem;
    flex: 1;
}

/* ---------------- Avatar ---------------- */

.avatar-circle {
    width: 38px; height: 38px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: var(--ctc-gradient);
    color: #fff;
    font-weight: 600;
    font-size: .82rem;
    flex-shrink: 0;
}
.avatar-circle.sm { width: 28px; height: 28px; font-size: .68rem; }
.avatar-circle.lg { width: 64px; height: 64px; font-size: 1.3rem; }

/* ---------------- Cartes ---------------- */

.card {
    border: 1px solid var(--ctc-border);
    border-radius: .6rem;
    background: var(--ctc-card);
}

.card-kpi {
    border-radius: .7rem;
    padding: 1.25rem 1.4rem;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--ctc-border);
    background: var(--ctc-card);
}
.card-kpi .kpi-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--ctc-dark);
    line-height: 1;
}
.card-kpi .kpi-label {
    font-size: .78rem;
    color: var(--ctc-muted);
    margin-top: .35rem;
}
.card-kpi .kpi-icon {
    position: absolute;
    right: 1rem; top: 1rem;
    width: 40px; height: 40px;
    border-radius: .55rem;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.05rem;
    color: #fff;
}
.card-kpi.accent-1 .kpi-icon { background: var(--ctc-navy); }
.card-kpi.accent-2 .kpi-icon { background: var(--ctc-magenta); }
.card-kpi.accent-3 .kpi-icon { background: var(--ctc-orange); }
.card-kpi.accent-4 .kpi-icon { background: var(--ctc-gold); }

/* Cartes KPI cliquables (ex : tableau de bord) */
a.card-kpi-link {
    display: block;
    text-decoration: none;
    color: inherit;
}
a.card-kpi-link .card-kpi {
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    cursor: pointer;
}
a.card-kpi-link:hover .card-kpi,
a.card-kpi-link:focus-visible .card-kpi {
    transform: translateY(-3px);
    box-shadow: 0 .5rem 1.25rem rgba(27, 20, 100, .12);
    border-color: var(--ctc-navy);
}

/* ---------------- Badges priorité ---------------- */

.badge-priorite {
    display: inline-block;
    padding: .22rem .55rem;
    border-radius: .35rem;
    font-size: .72rem;
    font-weight: 600;
}
.badge-priorite-basse    { background: #E7F6EC; color: #1E7B3D; }
.badge-priorite-moyenne  { background: #FFF4DE; color: #A5690A; }
.badge-priorite-haute    { background: #FFE7E0; color: #C4400F; }
.badge-priorite-critique { background: #FBE0EA; color: #A3134F; }

/* ---------------- Boutons ---------------- */

.btn-ctc {
    background: var(--ctc-gradient);
    border: none;
    color: #fff;
    font-weight: 600;
    padding: .55rem 1.2rem;
    border-radius: .5rem;
    transition: filter .15s ease, transform .1s ease;
}
.btn-ctc:hover { filter: brightness(1.08); color: #fff; }
.btn-ctc:active { transform: scale(.98); }

/* ---------------- Kanban ---------------- */

.kanban-board {
    display: grid;
    grid-template-columns: repeat(4, minmax(260px, 1fr));
    gap: 1rem;
    overflow-x: auto;
}
.kanban-column {
    background: #F0EFF6;
    border-radius: .6rem;
    padding: .75rem;
    min-height: 200px;
}
.kanban-column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .2rem .3rem .7rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: .85rem;
}
.kanban-count {
    background: #fff;
    border-radius: 1rem;
    padding: .05rem .5rem;
    font-size: .72rem;
    color: var(--ctc-muted);
}
.kanban-card {
    background: #fff;
    border-radius: .5rem;
    padding: .7rem .85rem;
    margin-bottom: .6rem;
    border: 1px solid var(--ctc-border);
    cursor: grab;
    box-shadow: 0 1px 2px rgba(20,15,50,.04);
}
.kanban-card:active { cursor: grabbing; }
.kanban-card .task-title {
    font-size: .87rem;
    font-weight: 600;
    color: var(--ctc-ink);
    margin-bottom: .4rem;
}
.kanban-card.dragging { opacity: .4; }
.kanban-column.drag-over { background: #E7E1F5; }

/* ---------------- Login ---------------- */

.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ctc-dark);
    background-image:
        radial-gradient(circle at 12% 20%, rgba(227,28,121,.35), transparent 40%),
        radial-gradient(circle at 88% 78%, rgba(247,148,29,.30), transparent 45%),
        radial-gradient(circle at 50% 100%, rgba(27,20,100,.6), transparent 60%);
    padding: 1.5rem;
}
.login-card {
    background: #fff;
    border-radius: .85rem;
    width: 100%;
    max-width: 420px;
    padding: 2.4rem 2.2rem;
    box-shadow: 0 24px 60px rgba(10, 5, 30, .35);
}
.login-card img.logo { height: 56px; margin-bottom: .5rem; }
.login-card .subtitle { color: var(--ctc-muted); font-size: .88rem; margin-bottom: 1.6rem; }

.form-control:focus, .form-select:focus {
    border-color: var(--ctc-magenta);
    box-shadow: 0 0 0 .2rem rgba(227,28,121,.15);
}

.progress { height: 6px; border-radius: 1rem; background: #ECEAF3; }
.progress-bar-ctc { background: var(--ctc-gradient); }

.table thead th {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--ctc-muted);
    border-bottom: 2px solid var(--ctc-border);
    font-weight: 600;
}

@media (max-width: 992px) {
    .app-sidebar { position: fixed; left: -264px; z-index: 1050; transition: left .2s ease; }
    .app-sidebar.open { left: 0; }
    .kanban-board { grid-template-columns: 1fr; }
}