/* ================================================================
   GestaSign - Stylesheet
   Professional, sober design for real estate SaaS.
   Colors: primary #2563EB, dark #1E293B, light #F8FAFC
   System font stack, no external resources.
   ================================================================ */

/* ── Reset & Base ──────────────────────────────────────────────── */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    line-height: 1.5;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #1E293B;
    background-color: #F8FAFC;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: #2563EB;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
}

/* ── Container ─────────────────────────────────────────────────── */

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* ── Header ────────────────────────────────────────────────────── */

.site-header {
    background: #1E293B;
    color: #F8FAFC;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.header-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    height: 56px;
    gap: 2rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.logo:hover {
    text-decoration: none;
    color: #93C5FD;
}

/* ── Navigation ────────────────────────────────────────────────── */

.main-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}

.main-nav a {
    color: #CBD5E1;
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.15s, color 0.15s;
}

.main-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    text-decoration: none;
}

.main-nav a.active {
    background: #2563EB;
    color: #fff;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.user-email {
    font-size: 0.8125rem;
    color: #94A3B8;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Main Content ──────────────────────────────────────────────── */

.site-main {
    flex: 1;
    padding: 2rem 0;
}

.site-main--public {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 120px);
}

/* ── Footer ────────────────────────────────────────────────────── */

.site-footer {
    background: #1E293B;
    color: #94A3B8;
    padding: 1.5rem 0;
    font-size: 0.8125rem;
    line-height: 1.6;
    margin-top: auto;
}

.footer-disclaimer {
    margin-bottom: 0.5rem;
    color: #CBD5E1;
}

.footer-copy {
    color: #64748B;
}

/* ── Page Header ───────────────────────────────────────────────── */

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1E293B;
    margin-bottom: 0.25rem;
}

.page-header-sub {
    color: #64748B;
    font-size: 0.9375rem;
}

/* ── Section ───────────────────────────────────────────────────── */

.section {
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1E293B;
}

/* ── Buttons ───────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.25;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
    text-decoration: none;
    font-family: inherit;
    white-space: nowrap;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background-color: #2563EB;
    color: #fff;
    border-color: #2563EB;
}

.btn-primary:hover {
    background-color: #1D4ED8;
    border-color: #1D4ED8;
}

.btn-outline {
    background-color: transparent;
    color: #2563EB;
    border-color: #CBD5E1;
}

.btn-outline:hover {
    background-color: #EFF6FF;
    border-color: #2563EB;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-danger {
    background-color: #DC2626;
    color: #fff;
    border-color: #DC2626;
}

.btn-danger:hover {
    background-color: #B91C1C;
}

/* ── Cards ─────────────────────────────────────────────────────── */

.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.card {
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    padding: 1.25rem;
}

.card-stat {
    text-align: center;
    transition: box-shadow 0.15s;
}

.card-stat:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.card-stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.card-stat-label {
    font-size: 0.8125rem;
    color: #64748B;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Card stat colors by status */
.card-stat--draft .card-stat-value { color: #64748B; }
.card-stat--sent .card-stat-value { color: #2563EB; }
.card-stat--signed .card-stat-value { color: #16A34A; }
.card-stat--refused .card-stat-value { color: #DC2626; }
.card-stat--expired .card-stat-value { color: #D97706; }

/* ── Tables ────────────────────────────────────────────────────── */

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    overflow: hidden;
}

.table th,
.table td {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.875rem;
    border-bottom: 1px solid #E2E8F0;
}

.table th {
    background: #F1F5F9;
    font-weight: 600;
    color: #475569;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.table tbody tr:hover {
    background-color: #F8FAFC;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ── Badges ────────────────────────────────────────────────────── */

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.badge-draft {
    background-color: #F1F5F9;
    color: #475569;
}

.badge-ready {
    background-color: #DBEAFE;
    color: #1E40AF;
}

.badge-sent {
    background-color: #DBEAFE;
    color: #1D4ED8;
}

.badge-signed {
    background-color: #DCFCE7;
    color: #15803D;
}

.badge-refused {
    background-color: #FEE2E2;
    color: #B91C1C;
}

.badge-expired {
    background-color: #FEF3C7;
    color: #B45309;
}

.badge-cancelled {
    background-color: #F1F5F9;
    color: #64748B;
}

.badge-error {
    background-color: #FEE2E2;
    color: #DC2626;
}

/* ── Forms ──────────────────────────────────────────────────────── */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="url"],
.form-group select,
.form-group textarea {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: #1E293B;
    background-color: #fff;
    border: 1px solid #CBD5E1;
    border-radius: 6px;
    transition: border-color 0.15s, box-shadow 0.15s;
    line-height: 1.5;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563EB;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group input::placeholder {
    color: #94A3B8;
}

.form-hint {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8125rem;
    color: #64748B;
}

.form-group--checkbox {
    margin-bottom: 1rem;
}

.form-group--checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-weight: 400;
    cursor: pointer;
    line-height: 1.5;
}

.form-group--checkbox input[type="checkbox"] {
    margin-top: 0.25rem;
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
    accent-color: #2563EB;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-actions {
    margin-top: 1.5rem;
}

/* ── Alerts ────────────────────────────────────────────────────── */

.alert {
    padding: 0.875rem 1.25rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    line-height: 1.5;
    border: 1px solid transparent;
}

.alert p {
    margin: 0;
}

.alert p + p {
    margin-top: 0.25rem;
}

.alert-success {
    background-color: #F0FDF4;
    color: #15803D;
    border-color: #BBF7D0;
}

.alert-error {
    background-color: #FEF2F2;
    color: #B91C1C;
    border-color: #FECACA;
}

.alert-warning {
    background-color: #FFFBEB;
    color: #B45309;
    border-color: #FDE68A;
}

.alert-info {
    background-color: #EFF6FF;
    color: #1E40AF;
    border-color: #BFDBFE;
}

/* ── Auth Pages ────────────────────────────────────────────────── */

.auth-container {
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}

.auth-card {
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    padding: 2.5rem;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.auth-card--wide {
    max-width: 560px;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1E293B;
    margin-bottom: 0.375rem;
    text-align: center;
}

.auth-subtitle {
    text-align: center;
    color: #64748B;
    font-size: 0.9375rem;
    margin-bottom: 2rem;
}

.auth-form {
    margin-bottom: 1.5rem;
}

.auth-links {
    text-align: center;
    font-size: 0.875rem;
    color: #64748B;
}

.auth-links a {
    font-weight: 600;
}

/* ── Empty State ───────────────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
}

.empty-state p {
    color: #64748B;
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

/* ── Responsive ────────────────────────────────────────────────── */

@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
        height: auto;
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }

    .main-nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.25rem;
    }

    .main-nav a {
        font-size: 0.8125rem;
        padding: 0.375rem 0.5rem;
        white-space: nowrap;
    }

    .header-user {
        margin-left: auto;
    }

    .user-email {
        display: none;
    }

    .dashboard-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .auth-card,
    .auth-card--wide {
        margin: 0 1rem;
        padding: 1.5rem;
    }

    .page-header h1 {
        font-size: 1.375rem;
    }

    .table th,
    .table td {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    .dashboard-cards {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 1rem;
    }
}