/* ===== CERTIA APP STYLES ===== */
/* Design tokens from landing page */

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

:root {
    --ink: #0a0f1a;
    --steel: #1a2332;
    --graphite: #2d3a4a;
    --slate: #64748b;
    --silver: #94a3b8;
    --mist: #e2e8f0;
    --cloud: #f1f5f9;
    --white: #ffffff;
    --cert-green: #10b981;
    --cert-green-dim: rgba(16, 185, 129, 0.12);
    --cert-green-hover: #059669;
    --cert-amber: #f59e0b;
    --cert-amber-dim: rgba(245, 158, 11, 0.12);
    --cert-red: #ef4444;
    --cert-red-dim: rgba(239, 68, 68, 0.12);
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
}

body {
    font-family: 'DM Sans', sans-serif;
    color: var(--ink);
    background: var(--cloud);
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    line-height: 1.2;
}

/* ===== NAV ===== */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.85rem 1.5rem;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--mist);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--ink);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo .dot { color: var(--cert-green); }

.nav-right { display: flex; align-items: center; gap: 0.75rem; }

.nav-badge {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--cert-green);
    background: var(--cert-green-dim);
    padding: 0.3rem 0.75rem;
    border-radius: 100px;
    letter-spacing: 0.3px;
}

/* ===== LAYOUT ===== */
.container { max-width: 820px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }

.view { display: none; }
.view.active { display: block; }

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 0.95rem;
    color: var(--slate);
    margin-top: 0.25rem;
}

/* ===== CARDS ===== */
.card {
    background: var(--white);
    border: 1px solid var(--mist);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.25rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.75rem;
    letter-spacing: -0.3px;
}

.card-header .card-title { margin-bottom: 0; }

.card-desc {
    font-size: 0.85rem;
    color: var(--slate);
    margin-bottom: 1rem;
}

/* ===== FORMS ===== */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-grid.three { grid-template-columns: 1fr 1fr 1fr; }
.form-group.full { grid-column: 1 / -1; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--graphite);
    margin-bottom: 0.35rem;
    letter-spacing: 0.2px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.85rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--ink);
    background: var(--white);
    border: 1.5px solid var(--mist);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--cert-green);
    box-shadow: 0 0 0 3px var(--cert-green-dim);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--silver);
}

/* ===== PROCESS STEPS ===== */
#steps-container { display: flex; flex-direction: column; gap: 0.5rem; }

.step-row {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.step-num {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--cert-green);
    background: var(--cert-green-dim);
    border-radius: 50%;
    flex-shrink: 0;
}

.step-input {
    flex: 1;
    padding: 0.55rem 0.85rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--ink);
    border: 1.5px solid var(--mist);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color 0.2s;
}

.step-input:focus {
    border-color: var(--cert-green);
    box-shadow: 0 0 0 3px var(--cert-green-dim);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    letter-spacing: -0.2px;
}

.btn-primary {
    color: var(--white);
    background: var(--cert-green);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}
.btn-primary:hover { background: var(--cert-green-hover); }

.btn-outline {
    color: var(--graphite);
    background: var(--white);
    border: 1.5px solid var(--mist);
}
.btn-outline:hover { border-color: var(--silver); background: var(--cloud); }

.btn-sm { font-size: 0.78rem; padding: 0.4rem 0.85rem; }
.btn-lg { font-size: 0.95rem; padding: 0.75rem 1.75rem; width: 100%; justify-content: center; }

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    color: var(--silver);
    transition: all 0.15s;
}
.btn-icon:hover { background: var(--cloud); color: var(--cert-red); }
.btn-remove { flex-shrink: 0; }

/* ===== LOADING STATE ===== */
.loading-state {
    text-align: center;
    padding: 6rem 2rem;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--mist);
    border-top-color: var(--cert-green);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-state h2 {
    font-size: 1.4rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
}

.loading-state p {
    font-size: 0.92rem;
    color: var(--slate);
    max-width: 480px;
    margin: 0 auto;
}

.loading-note {
    font-size: 0.82rem !important;
    color: var(--silver) !important;
    margin-top: 0.5rem !important;
}

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    max-width: 300px;
    margin: 2rem auto 0;
    text-align: left;
}

.loading-step {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--silver);
    transition: color 0.3s;
}

.loading-step.active {
    color: var(--cert-green);
    font-weight: 500;
}

.loading-step.done {
    color: var(--cert-green);
}

.loading-step .step-icon { font-size: 0.7rem; }

/* ===== DOCUMENT VIEW ===== */
.doc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.doc-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.doc-header h1 {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.doc-subtitle {
    font-size: 0.82rem;
    color: var(--slate);
}

.doc-actions { display: flex; gap: 0.5rem; }

/* Risk Summary */
.risk-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.risk-card {
    background: var(--white);
    border: 1px solid var(--mist);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
}

.risk-card .label {
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--slate);
    margin-bottom: 0.25rem;
}

.risk-card .value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--ink);
}

.risk-card.high .value { color: var(--cert-red); }
.risk-card.medium .value { color: var(--cert-amber); }
.risk-card.low .value { color: var(--cert-green); }

/* ===== FMEA TABLE ===== */
.table-wrapper {
    overflow-x: auto;
    background: var(--white);
    border: 1px solid var(--mist);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.fmea-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    min-width: 1200px;
}

.fmea-table thead {
    background: var(--steel);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 10;
}

.fmea-table th {
    padding: 0.7rem 0.5rem;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: left;
    white-space: nowrap;
    border-right: 1px solid var(--graphite);
}
.fmea-table th:last-child { border-right: none; }

.fmea-table td {
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid var(--mist);
    border-right: 1px solid #f0f0f0;
    vertical-align: top;
    line-height: 1.45;
}
.fmea-table td:last-child { border-right: none; }

.fmea-table tbody tr:hover { background: rgba(16, 185, 129, 0.03); }
.fmea-table tbody tr:nth-child(even) { background: #fafbfc; }
.fmea-table tbody tr:nth-child(even):hover { background: rgba(16, 185, 129, 0.05); }

/* Column widths */
.col-num { width: 36px; text-align: center !important; }
.col-step { min-width: 120px; }
.col-mode { min-width: 130px; }
.col-effect { min-width: 130px; }
.col-cause { min-width: 130px; }
.col-ctrl { min-width: 120px; }
.col-rating { width: 36px; text-align: center !important; }
.col-rpn { width: 44px; text-align: center !important; }
.col-ap { width: 52px; text-align: center !important; }
.col-cls { width: 36px; text-align: center !important; }
.col-actions { min-width: 160px; }

/* Rating badges */
.rating-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 6px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.8rem;
    cursor: pointer;
    transition: transform 0.1s;
}
.rating-badge:hover { transform: scale(1.15); }

.rating-high { background: var(--cert-red-dim); color: var(--cert-red); }
.rating-med { background: var(--cert-amber-dim); color: var(--cert-amber); }
.rating-low { background: var(--cert-green-dim); color: var(--cert-green); }
.rating-neutral { background: var(--cloud); color: var(--graphite); }

.rpn-badge {
    display: inline-block;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.78rem;
}

.ap-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.ap-high { background: var(--cert-red); color: var(--white); }
.ap-medium { background: var(--cert-amber); color: var(--white); }
.ap-low { background: var(--cert-green); color: var(--white); }

.cls-badge {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.72rem;
}
.cls-cc { color: var(--cert-red); }
.cls-sc { color: var(--cert-amber); }

/* ===== DRAWER ===== */
.drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 380px;
    max-width: 90vw;
    background: var(--white);
    border-left: 1px solid var(--mist);
    box-shadow: -10px 0 30px rgba(0,0,0,0.08);
    z-index: 200;
    transform: translateX(0);
    transition: transform 0.2s ease;
    overflow-y: auto;
}
.drawer.hidden { transform: translateX(100%); pointer-events: none; }

.drawer-content { padding: 1.5rem; }

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--mist);
}

.drawer-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.rationale-section {
    margin-bottom: 1.25rem;
}

.rationale-section h4 {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--slate);
    margin-bottom: 0.4rem;
}

.rationale-section p {
    font-size: 0.88rem;
    color: var(--graphite);
    line-height: 1.55;
}

.rationale-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
}

/* ===== HISTORY ===== */
.history-list { display: flex; flex-direction: column; gap: 0.75rem; }

.history-card {
    background: var(--white);
    border: 1px solid var(--mist);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.history-card:hover { border-color: var(--cert-green); box-shadow: var(--shadow-lg); }

.history-card-left {
    flex: 1;
}

.history-card h3 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    margin-bottom: 0.15rem;
}

.history-card .meta {
    font-size: 0.8rem;
    color: var(--slate);
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.history-card .risk-pills {
    display: flex;
    gap: 0.4rem;
    flex-shrink: 0;
}

.risk-pill {
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 0.72rem;
}
.risk-pill.high { background: var(--cert-red-dim); color: var(--cert-red); }
.risk-pill.medium { background: var(--cert-amber-dim); color: var(--cert-amber); }
.risk-pill.low { background: var(--cert-green-dim); color: var(--cert-green); }

.status-badge {
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.15rem 0.6rem;
    border-radius: 100px;
}
.status-generating { background: var(--cert-amber-dim); color: var(--cert-amber); }
.status-completed { background: var(--cert-green-dim); color: var(--cert-green); }
.status-failed { background: var(--cert-red-dim); color: var(--cert-red); }

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--slate);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .form-grid { grid-template-columns: 1fr; }
    .form-grid.three { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; }
    .doc-header { flex-direction: column; align-items: flex-start; }
    .doc-header-left { flex-direction: column; align-items: flex-start; }
    .risk-summary { grid-template-columns: repeat(2, 1fr); }
    .drawer { width: 100%; max-width: 100%; }
}

@media (max-width: 480px) {
    .container { padding: 1.25rem 1rem 3rem; }
    .risk-summary { grid-template-columns: 1fr 1fr; }
    .history-card { flex-direction: column; align-items: flex-start; }
}