/* ============================================================
   TCL MFA Portal – Main Stylesheet
   Trusted Computing Ltd
   ============================================================ */

:root {
    --tcl-blue:       #0B4A8B;
    --tcl-blue-light: #1A6DB5;
    --tcl-blue-dark:  #072F5C;
    --tcl-accent:     #00A8E8;
    --tcl-green:      #16A34A;
    --tcl-red:        #DC2626;

    --bg:             #F4F6FA;
    --surface:        #FFFFFF;
    --surface-alt:    #EEF2F8;
    --border:         #D1DAEB;
    --text:           #111827;
    --text-secondary: #4B5563;
    --text-muted:     #9CA3AF;

    --radius:         10px;
    --radius-sm:      6px;
    --shadow:         0 1px 3px rgba(7,47,92,.08), 0 4px 16px rgba(7,47,92,.07);
    --shadow-lg:      0 4px 6px rgba(7,47,92,.06), 0 12px 40px rgba(7,47,92,.12);

    --font-sans:      'DM Sans', system-ui, sans-serif;
    --font-mono:      'DM Mono', 'Courier New', monospace;
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--tcl-blue); text-decoration: none; }
a:hover { color: var(--tcl-blue-light); }

/* ============================================================
   Logo / Badge Components
   ============================================================ */

.tcl-logo {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.logo-mark, .tcl-badge {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-grid, .badge-mark {
    display: grid;
    grid-template-columns: repeat(3, 6px);
    grid-template-rows: repeat(3, 6px);
    gap: 2px;
}

.logo-grid span, .badge-mark span {
    background: var(--tcl-blue);
    border-radius: 1px;
    display: block;
}
.logo-grid span:nth-child(5),
.badge-mark span:nth-child(5) {
    background: var(--tcl-accent);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.logo-main {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--tcl-blue-dark);
    letter-spacing: -0.02em;
}
.logo-sub {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.tcl-badge {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--tcl-blue-dark);
    letter-spacing: 0.05em;
}
.tcl-badge .badge-mark { grid-template-columns: repeat(3, 4px); grid-template-rows: repeat(3, 4px); gap: 1.5px; }
.tcl-badge .badge-mark span { background: var(--tcl-blue); }
.tcl-badge .badge-mark span:nth-child(5) { background: var(--tcl-accent); }
.tcl-badge.small .badge-mark { grid-template-columns: repeat(3, 3px); grid-template-rows: repeat(3, 3px); }

/* ============================================================
   Splash Page
   ============================================================ */

.splash-page { background: var(--tcl-blue-dark); overflow: hidden; }

.splash-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: calc(100vh - 48px);
}

.splash-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 48px 32px;
}

.splash-inner .tcl-logo {
    justify-content: center;
    margin-bottom: 40px;
}

.splash-inner .logo-grid { grid-template-columns: repeat(3, 10px); grid-template-rows: repeat(3, 10px); gap: 3px; }
.splash-inner .logo-grid span { background: rgba(255,255,255,0.6); }
.splash-inner .logo-grid span:nth-child(5) { background: var(--tcl-accent); }
.splash-inner .logo-main { color: #fff; font-size: 1.6rem; }
.splash-inner .logo-sub { color: rgba(255,255,255,0.5); }

.splash-divider {
    width: 48px;
    height: 2px;
    background: var(--tcl-accent);
    margin: 0 auto 24px;
    border-radius: 2px;
}

.splash-tagline {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    margin-bottom: 20px;
}

.splash-contact a {
    color: rgba(255,255,255,0.45);
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    transition: color .2s;
}
.splash-contact a:hover { color: var(--tcl-accent); }

/* Background decoration */
.splash-bg { position: absolute; inset: 0; pointer-events: none; }

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
}
.orb-1 {
    width: 400px; height: 400px;
    background: rgba(0,168,232,0.12);
    top: -100px; right: -100px;
}
.orb-2 {
    width: 300px; height: 300px;
    background: rgba(11,74,139,0.3);
    bottom: -80px; left: -60px;
}

/* ============================================================
   Auth / Login
   ============================================================ */

.auth-page {
    background: var(--bg);
    justify-content: center;
    align-items: center;
}

.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
}

.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    width: 100%;
    max-width: 380px;
}

.auth-header {
    text-align: center;
    margin-bottom: 28px;
}

.auth-header .tcl-badge {
    justify-content: center;
    margin-bottom: 16px;
    font-size: 0.7rem;
}

.auth-header h1 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--tcl-blue-dark);
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.tenant-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* ============================================================
   Forms
   ============================================================ */

.field {
    margin-bottom: 16px;
}
.field label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.field input[type="text"],
.field input[type="password"],
.field input[type="email"] {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text);
    background: var(--bg);
    transition: border-color .15s, box-shadow .15s;
    outline: none;
}
.field input:focus {
    border-color: var(--tcl-blue-light);
    box-shadow: 0 0 0 3px rgba(11,74,139,0.1);
    background: #fff;
}
.field small {
    display: block;
    margin-top: 5px;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.field small code { font-family: var(--font-mono); background: var(--surface-alt); padding: 1px 4px; border-radius: 3px; }

.field-check {
    display: flex;
    align-items: center;
    gap: 8px;
}
.field-check label {
    margin: 0;
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.9rem;
    color: var(--text);
    cursor: pointer;
}
.field-check input[type="checkbox"] {
    width: 16px; height: 16px;
    accent-color: var(--tcl-blue);
    cursor: pointer;
}

.check-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 6px;
}
.check-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color .15s, background .15s;
    font-size: 0.9rem;
}
.check-item:hover { border-color: var(--tcl-blue-light); background: var(--surface-alt); }
.check-item input[type="checkbox"] { accent-color: var(--tcl-blue); }

.mono-input { font-family: var(--font-mono) !important; font-size: 0.85rem !important; letter-spacing: 0.04em; }

.form-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* ============================================================
   Buttons
   ============================================================ */

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    justify-content: center;
    padding: 11px 20px;
    background: var(--tcl-blue);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background .15s, transform .1s;
    margin-top: 8px;
    text-decoration: none;
}
.btn-primary:hover { background: var(--tcl-blue-light); color: #fff; }
.btn-primary:active { transform: scale(.99); }
.btn-primary svg { width: 16px; height: 16px; }

.btn-primary-sm {
    display: inline-flex;
    align-items: center;
    padding: 7px 14px;
    background: var(--tcl-blue);
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s;
    border: none;
}
.btn-primary-sm:hover { background: var(--tcl-blue-light); color: #fff; }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 9px 16px;
    background: transparent;
    color: var(--text-secondary);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: border-color .15s, color .15s;
}
.btn-ghost:hover { border-color: var(--tcl-blue); color: var(--tcl-blue); }

.btn-danger-sm {
    padding: 4px 10px;
    background: transparent;
    color: var(--tcl-red);
    border: 1.5px solid rgba(220,38,38,0.3);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    cursor: pointer;
    transition: background .15s, color .15s;
}
.btn-danger-sm:hover { background: var(--tcl-red); color: #fff; }

.btn-logout {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border: 1.5px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.8);
    font-size: 0.8rem;
    transition: border-color .15s, color .15s;
}
.btn-logout:hover { border-color: rgba(255,255,255,0.7); color: #fff; }

.btn-sm-outline {
    display: inline-flex;
    padding: 5px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: border-color .15s, color .15s;
}
.btn-sm-outline:hover { border-color: var(--tcl-blue); color: var(--tcl-blue); }

/* ============================================================
   Alerts
   ============================================================ */

.alert {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 16px;
    line-height: 1.4;
}
.alert-error { background: #FEF2F2; color: #991B1B; border: 1px solid #FCA5A5; }
.alert-info  { background: #EFF6FF; color: #1D4ED8; border: 1px solid #BFDBFE; }
.alert code { font-family: var(--font-mono); font-size: 0.85em; }

/* ============================================================
   Codes Page
   ============================================================ */

.codes-page { background: var(--tcl-blue-dark); }

.codes-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0 0 32px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.codes-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 32px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 32px;
}

.codes-header .tcl-badge { color: rgba(255,255,255,0.7); }
.codes-header .tcl-badge .badge-mark span { background: rgba(255,255,255,0.5); }
.codes-header .tcl-badge .badge-mark span:nth-child(5) { background: var(--tcl-accent); }

.codes-title { flex: 1; }
.codes-title h1 { font-size: 1rem; font-weight: 600; color: #fff; }
.codes-title p  { font-size: 0.75rem; color: rgba(255,255,255,0.45); margin-top: 1px; }

.codes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    padding: 0 32px;
}

.code-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    backdrop-filter: blur(4px);
    transition: border-color .2s, background .2s;
}
.code-card:hover { border-color: rgba(0,168,232,0.4); background: rgba(255,255,255,0.08); }

.code-label {
    font-size: 0.72rem;
    font-weight: 500;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 14px;
}

.code-value {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 500;
    color: #fff;
    letter-spacing: 0.15em;
    transition: opacity .2s;
}
.code-value.refreshing { opacity: 0.3; }

.code-timer {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.timer-bar {
    flex: 1;
    height: 3px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
}
.timer-fill {
    height: 100%;
    background: var(--tcl-accent);
    border-radius: 2px;
    transition: width 1s linear;
}
.timer-text {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.35);
    font-family: var(--font-mono);
    min-width: 24px;
    text-align: right;
}

.session-note {
    padding: 24px 32px 0;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.25);
    text-align: center;
}

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
    padding: 14px 24px;
    text-align: center;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.2);
    letter-spacing: 0.05em;
}
.site-footer .sep { margin: 0 8px; }

.auth-page .site-footer,
.admin-body .site-footer {
    color: var(--text-muted);
}

/* ============================================================
   Badges
   ============================================================ */

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.04em;
}
.badge-ok  { background: #DCFCE7; color: #15803D; }
.badge-off { background: #F3F4F6; color: #6B7280; }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 520px) {
    .auth-card { padding: 28px 20px; }
    .codes-header { padding: 16px 20px; }
    .codes-grid { padding: 0 20px; grid-template-columns: 1fr 1fr; }
    .code-value { font-size: 1.8rem; }
}

/* ============================================================
   Logo image support
   ============================================================ */

.portal-logo {
    max-height: 60px;
    max-width: 240px;
    object-fit: contain;
    filter: brightness(0) invert(1);  /* white on dark backgrounds */
}

.tcl-logo-img {
    margin-bottom: 32px;
    display: flex;
    justify-content: center;
}

.auth-logo-img {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

.portal-logo-sm {
    max-height: 40px;
    max-width: 160px;
    object-fit: contain;
}

.logo-preview { margin-bottom: 8px; }
.logo-preview-label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; }
.logo-preview-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--tcl-blue-dark);
    border-radius: var(--radius-sm);
    padding: 16px 24px;
}
.logo-preview-box img { max-height: 50px; max-width: 200px; object-fit: contain; }

/* Alert success */
.alert-success { background: #DCFCE7; color: #15803D; border: 1px solid #86EFAC; }