/* ================================================================
 * Time Tracker — Stili custom
 * Bootstrap 5.3 + Inter font + dark mode via data-bs-theme
 * Tema: Teal Zen — calma, concentrazione, equilibrio
 * ================================================================ */

:root {
    --tt-primary:        #2EC4B6;
    --tt-primary-dark:   #1B9AAA;
    --tt-primary-light:  #CBF3F0;
    --tt-accent:         #6366F1;
    --tt-accent-dark:    #4f46e5;
    --tt-success:        #22C55E;
    --tt-warning:        #F59E0B;
    --tt-danger:         #EF4444;
    --tt-navbar-from:    #0a2e38;
    --tt-navbar-to:      #1B9AAA;
    --tt-bg:             #F8FAFC;
    --tt-surface:        #FFFFFF;
    --tt-border:         #E2E8F0;
    --tt-text-primary:   #0F172A;
    --tt-text-secondary: #64748B;
    --tt-card-radius:    0.875rem;
    --tt-shadow-sm:      0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
    --tt-shadow:         0 4px 16px rgba(46,196,182,.14), 0 1px 4px rgba(0,0,0,.06);
    --tt-shadow-lg:      0 10px 40px rgba(46,196,182,.2), 0 4px 16px rgba(0,0,0,.08);
    --tt-dot-size:       10px;
}

/* ── Body ─────────────────────────────────────────────────────── */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-feature-settings: 'cv02','cv03','cv04','cv11';
    min-height: 100vh;
    background: var(--tt-bg);
    color: var(--tt-text-primary);
}

/* ── Navbar ───────────────────────────────────────────────────── */
.tt-navbar {
    background: linear-gradient(135deg, var(--tt-navbar-from) 0%, #0f4f60 50%, var(--tt-navbar-to) 100%) !important;
    box-shadow: 0 2px 20px rgba(10,46,56,.4);
    border-bottom: 1px solid rgba(255,255,255,.07);
}
.tt-navbar .navbar-brand,
.tt-navbar .nav-link,
.tt-navbar .navbar-toggler-icon {
    color: rgba(255,255,255,.93) !important;
}
.tt-navbar .navbar-brand {
    font-weight: 700;
    letter-spacing: -.01em;
}
.tt-navbar .navbar-brand i {
    color: var(--tt-primary-light) !important;
}
.tt-navbar .nav-link {
    border-radius: .5rem;
    padding: .4rem .75rem !important;
    transition: background .15s;
    font-weight: 500;
    font-size: .875rem;
}
.tt-navbar .nav-link:hover {
    color: #fff !important;
    background: rgba(255,255,255,.14);
}
.tt-navbar .nav-link.active {
    background: rgba(255,255,255,.17);
    color: #fff !important;
}
.tt-navbar .dropdown-menu {
    border: 1px solid var(--tt-border);
    box-shadow: var(--tt-shadow-lg);
    border-radius: .75rem;
    padding: .375rem;
}
.tt-navbar .dropdown-item {
    border-radius: .5rem;
    font-size: .875rem;
    font-weight: 500;
    padding: .45rem .75rem;
    color: var(--tt-text-primary);
}
.tt-navbar .dropdown-item:hover {
    background: var(--tt-primary-light);
    color: var(--tt-primary-dark);
}

/* ── Avatar utente ────────────────────────────────────────────── */
.avatar-sm {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--tt-primary-dark), var(--tt-primary));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(46,196,182,.4);
}

/* ── Bottone icona ghost ──────────────────────────────────────── */
.btn-ghost-icon {
    background: rgba(255,255,255,.12);
    border: none;
    color: rgba(255,255,255,.9);
    padding: .3rem .5rem;
    border-radius: .5rem;
    transition: background .15s;
}
.btn-ghost-icon:hover {
    background: rgba(255,255,255,.22);
    color: #fff;
}

.btn-xs {
    padding: .15rem .4rem;
    font-size: .75rem;
    border-radius: .35rem;
}

/* ── Pulsante primario — teal ─────────────────────────────────── */
.btn-primary {
    background: linear-gradient(135deg, var(--tt-primary-dark), var(--tt-primary)) !important;
    border: none !important;
    box-shadow: 0 2px 10px rgba(46,196,182,.35);
    transition: box-shadow .2s, transform .15s;
    font-weight: 600;
    color: #fff !important;
}
.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #157a8a, var(--tt-primary-dark)) !important;
    box-shadow: 0 4px 20px rgba(46,196,182,.5);
    transform: translateY(-1px);
}
.btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(46,196,182,.35);
}

.btn-outline-primary {
    color: var(--tt-primary-dark);
    border-color: var(--tt-primary-dark);
    font-weight: 500;
}
.btn-outline-primary:hover {
    background: var(--tt-primary-dark);
    border-color: var(--tt-primary-dark);
    color: #fff;
}

/* ── Cards ────────────────────────────────────────────────────── */
.card {
    border-radius: var(--tt-card-radius);
    border: 1px solid var(--tt-border);
    box-shadow: var(--tt-shadow-sm);
    background: var(--tt-surface);
    transition: box-shadow .2s, transform .2s;
}
.card-header {
    background: linear-gradient(90deg, rgba(46,196,182,.06) 0%, transparent 100%);
    border-bottom: 1px solid var(--tt-border);
    font-weight: 600;
    color: var(--tt-text-primary);
}

/* Card timer avvio */
.tt-card-start .card-header {
    background: linear-gradient(90deg, rgba(46,196,182,.06) 0%, transparent 100%);
    border-bottom: 1px solid var(--tt-border);
}

/* Card timer attivo — usa warning (arancione) */
.tt-card-timer {
    border: 2px solid var(--tt-warning);
    background: linear-gradient(135deg, rgba(245,158,11,.06) 0%, rgba(46,196,182,.04) 100%);
}
[data-bs-theme="dark"] .tt-card-timer {
    background: linear-gradient(135deg, rgba(245,158,11,.1) 0%, rgba(46,196,182,.06) 100%);
}

/* ── Timer display ────────────────────────────────────────────── */
.tt-timer-big {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: .04em;
    color: var(--tt-warning);
    line-height: 1;
}

.tt-timer-display {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: .04em;
    color: #fff;
}

/* ── Timer navbar ─────────────────────────────────────────────── */
.tt-navbar-timer {
    display: flex;
    align-items: center;
}
.tt-timer-running {
    background: rgba(245,158,11,.18);
    border: 1px solid rgba(245,158,11,.35);
    border-radius: 2rem;
    padding: .28rem .75rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}

/* ── Pulse dot (timer in corso) ───────────────────────────────── */
.tt-pulse-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--tt-warning);
    animation: tt-pulse 1.5s ease-in-out infinite;
    margin-right: .25rem;
}
@keyframes tt-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: .55; transform: scale(1.35); }
}

/* Badge "In corso" */
.tt-badge-running {
    background: rgba(245,158,11,.12);
    color: #b45309;
    border: 1px solid rgba(245,158,11,.3);
    font-size: .7rem;
    font-weight: 600;
    padding: .15rem .55rem;
    border-radius: 1rem;
    display: inline-flex;
    align-items: center;
}
[data-bs-theme="dark"] .tt-badge-running {
    color: var(--tt-warning);
}

/* ── Color dot ────────────────────────────────────────────────── */
.tt-color-dot {
    display: inline-block;
    width: var(--tt-dot-size);
    height: var(--tt-dot-size);
    border-radius: 50%;
    flex-shrink: 0;
}
.tt-color-dot-lg {
    display: inline-block;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    flex-shrink: 0;
    vertical-align: middle;
}

/* ── Form controls — focus ring teal ─────────────────────────── */
.form-control:focus,
.form-select:focus {
    border-color: var(--tt-primary);
    box-shadow: 0 0 0 .2rem rgba(46,196,182,.2);
}
.form-control,
.form-select {
    font-size: .875rem;
    border-color: var(--tt-border);
}
.form-label {
    font-size: .8125rem;
    font-weight: 600;
    color: var(--tt-text-secondary);
    letter-spacing: .01em;
    text-transform: uppercase;
}

/* ── List group ───────────────────────────────────────────────── */
.list-group-item-action {
    transition: background .12s;
}
.list-group-item-action:hover {
    background: rgba(46,196,182,.05);
}

/* ── Auth pages ───────────────────────────────────────────────── */
.tt-auth-body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a1628 0%, #0a2e38 40%, #1B9AAA 78%, #CBF3F0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.tt-auth-wrap {
    width: 100%;
    max-width: 420px;
}
.tt-auth-card {
    border-radius: 1.25rem;
    border: none;
    box-shadow: var(--tt-shadow-lg);
}
.tt-auth-logo {
    width: 56px;
    height: 56px;
    border-radius: 1rem;
    background: linear-gradient(135deg, var(--tt-primary-dark), var(--tt-primary));
    color: #fff;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 8px 24px rgba(46,196,182,.45);
}

/* ── Utilities ────────────────────────────────────────────────── */
.min-width-0 { min-width: 0; }
.font-monospace { font-family: 'SF Mono', 'Fira Code', monospace; }
.tt-accent { color: var(--tt-accent); }

/* ── Dark mode ────────────────────────────────────────────────── */
[data-bs-theme="dark"] body {
    background: #0B132B;
    color: #e2e8f0;
}
[data-bs-theme="dark"] .tt-navbar {
    background: linear-gradient(135deg, #060d1f 0%, #0a2333 55%, #0f3d4e 100%) !important;
    box-shadow: 0 2px 20px rgba(0,0,0,.5);
}
[data-bs-theme="dark"] .card {
    border-color: rgba(255,255,255,.07);
    background: #1C2541;
    box-shadow: 0 2px 12px rgba(0,0,0,.3);
}
[data-bs-theme="dark"] .card-header {
    background: linear-gradient(90deg, rgba(91,192,190,.1) 0%, transparent 100%);
    border-bottom-color: rgba(255,255,255,.07);
    color: #e2e8f0;
}
[data-bs-theme="dark"] .table-light {
    --bs-table-bg: rgba(255,255,255,.03);
}
[data-bs-theme="dark"] .list-group-item {
    border-color: rgba(255,255,255,.06);
    background: transparent;
    color: #e2e8f0;
}
[data-bs-theme="dark"] .list-group-item-action:hover {
    background: rgba(91,192,190,.09);
}
[data-bs-theme="dark"] .tt-navbar .dropdown-menu {
    background: #1C2541;
    border-color: rgba(255,255,255,.08);
}
[data-bs-theme="dark"] .tt-navbar .dropdown-item {
    color: rgba(255,255,255,.82);
}
[data-bs-theme="dark"] .tt-navbar .dropdown-item:hover {
    background: rgba(91,192,190,.15);
    color: #5BC0BE;
}
[data-bs-theme="dark"] .tt-navbar .dropdown-divider {
    border-color: rgba(255,255,255,.08);
}
[data-bs-theme="dark"] .btn-ghost-icon {
    background: rgba(255,255,255,.1);
    color: rgba(255,255,255,.85);
}
[data-bs-theme="dark"] .btn-ghost-icon:hover {
    background: rgba(255,255,255,.18);
    color: #fff;
}
[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: #131c35;
    border-color: rgba(255,255,255,.1);
    color: #e2e8f0;
}
[data-bs-theme="dark"] .form-control:focus,
[data-bs-theme="dark"] .form-select:focus {
    background-color: #172040;
    border-color: #5BC0BE;
    box-shadow: 0 0 0 .2rem rgba(91,192,190,.2);
}
[data-bs-theme="dark"] .btn-primary {
    background: linear-gradient(135deg, #157a8a, #5BC0BE) !important;
}
[data-bs-theme="dark"] .btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #0f5f6e, #157a8a) !important;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
    .tt-timer-big { font-size: 1.6rem; }
    .card { border-radius: .75rem; }
}