:root {
    --primary: #142b4a;
    --primary-hover: #0f223c;
    --primary-strong: #0a1b32;
    --primary-light: rgba(20, 43, 74, 0.08);
    --primary-soft: #edf2f7;
    --accent: #31577f;
    --accent-light: rgba(49, 87, 127, 0.1);

    --bg-body: #f3f5f8;
    --bg-card: #ffffff;
    --bg-sidebar: #10243f;
    --bg-input: #ffffff;
    --bg-subtle: #f7f8fa;
    --bg-elevated: #ffffff;

    --text-primary: #182235;
    --text-secondary: #596474;
    --text-muted: #87909d;
    --text-inverse: #ffffff;

    --border-color: #dce1e8;
    --border-strong: #c7ced8;
    --border-radius: 8px;
    --border-radius-sm: 6px;

    --status-paid: #244d79;
    --status-partial: #b25f0a;
    --status-pending: #b4232b;

    --shadow-sm: 0 1px 2px rgba(15, 31, 53, 0.05);
    --shadow-md: 0 8px 20px rgba(15, 31, 53, 0.08);
    --shadow-lg: 0 18px 45px rgba(15, 31, 53, 0.13);

    --sidebar-width: 264px;
    --sidebar-collapsed: 76px;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
}

* { box-sizing: border-box; }

html { min-width: 0; }

body {
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    background: var(--bg-body);
    color: var(--text-primary);
    font-family: "IBM Plex Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 0.95rem;
    letter-spacing: -0.005em;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: #edf0f4; }
::-webkit-scrollbar-thumb { background: #b8c0cb; border-radius: 6px; border: 2px solid #edf0f4; }

.app-shell { min-height: 100vh; display: flex; }
.app-main { flex: 1; min-width: 0; margin-left: var(--sidebar-width); }
.app-shell[data-sidebar-state="collapsed"] .app-main { margin-left: var(--sidebar-collapsed); }

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    min-height: 72px;
    padding: 0.8rem clamp(1rem, 2vw, 2rem);
    border-bottom: 1px solid var(--border-color);
    background: #ffffff;
}

.topbar h1 {
    margin: 0;
    color: var(--text-primary);
    font-size: clamp(1.2rem, 2vw, 1.45rem);
    font-weight: 600;
    letter-spacing: -0.025em;
}

.panel h2, .detail-hero h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.08rem;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.page-kicker {
    display: block;
    margin-bottom: 0.08rem;
    color: var(--text-muted);
    font-size: 0.69rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.topbar-actions { display: flex; align-items: center; gap: var(--space-3); }
.content-wrap { width: min(100%, 1480px); padding: clamp(1.25rem, 2vw, 2rem); margin: 0 auto; }

.panel, .glass-card, .metric-card, .login-card, .detail-hero {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    border-radius: var(--border-radius);
}

.panel { padding: clamp(1.1rem, 2vw, 1.5rem); }
.panel-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); }
.panel-header p { margin: 0.25rem 0 0; color: var(--text-secondary); }

.btn {
    min-height: 40px;
    border-radius: var(--border-radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    font-weight: 600;
    box-shadow: none;
}
.btn-primary {
    --bs-btn-bg: var(--primary);
    --bs-btn-border-color: var(--primary);
    --bs-btn-hover-bg: var(--primary-hover);
    --bs-btn-hover-border-color: var(--primary-hover);
    --bs-btn-active-bg: var(--primary-strong);
    --bs-btn-active-border-color: var(--primary-strong);
    --bs-btn-disabled-bg: #718096;
    --bs-btn-disabled-border-color: #718096;
}
.btn-outline-light {
    --bs-btn-color: var(--text-primary);
    --bs-btn-border-color: var(--border-strong);
    --bs-btn-hover-color: var(--primary-strong);
    --bs-btn-hover-bg: var(--primary-soft);
    --bs-btn-hover-border-color: #9da9b8;
    --bs-btn-active-color: var(--primary-strong);
    --bs-btn-active-bg: #e3e9f0;
    --bs-btn-active-border-color: #9da9b8;
}
.btn-danger {
    --bs-btn-bg: #b4232b;
    --bs-btn-border-color: #b4232b;
    --bs-btn-hover-bg: #981b23;
    --bs-btn-hover-border-color: #981b23;
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-elevated);
    color: var(--text-secondary);
}
.icon-btn:hover, .icon-btn:focus-visible {
    border-color: var(--border-strong);
    background: var(--primary-soft);
    color: var(--primary-strong);
}

.avatar {
    width: 40px;
    height: 40px;
    flex: 0 0 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary);
    color: var(--text-inverse);
    font-weight: 700;
}
.avatar.small { width: 36px; height: 36px; flex-basis: 36px; }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    min-height: 27px;
    padding: 0.25rem 0.55rem;
    border-radius: 5px;
    border: 1px solid transparent;
    font-size: 0.76rem;
    font-weight: 600;
}
.status-paid { color: #163c66; background: #e9f0f8; border-color: #c8d7e8; }
.status-partial { color: #7a3e05; background: #fff5e8; border-color: #f2d3aa; }
.status-pending { color: #8b1d24; background: #fff0f1; border-color: #efc8cb; }

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
    gap: var(--space-4);
}

.metric-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-height: 108px;
    padding: 1.15rem;
}
.metric-card small { color: var(--text-secondary); font-size: 0.78rem; font-weight: 500; }
.metric-card strong { display: block; margin-top: 0.15rem; font-size: 1.8rem; line-height: 1; color: var(--text-primary); font-weight: 600; letter-spacing: -0.04em; }
.metric-card.currency strong { font-size: clamp(1.2rem, 1.8vw, 1.55rem); white-space: nowrap; }
.metric-icon {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #cfdae6;
    border-radius: var(--border-radius-sm);
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 1.15rem;
}
.metric-card.success .metric-icon { background: #e9f0f8; color: #163c66; border-color: #c8d7e8; }
.metric-card.warning .metric-icon { background: #fff5e8; color: #7a3e05; border-color: #f2d3aa; }
.metric-card.danger .metric-icon { background: #fff0f1; color: #8b1d24; border-color: #efc8cb; }

.login-page { background: #eef2f6; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 1.25rem; }
.login-card {
    width: min(100%, 440px);
    padding: 0;
    overflow: hidden;
    border-color: #cfd6e0;
    box-shadow: var(--shadow-lg);
}
.login-brand {
    min-height: 154px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    background: var(--bg-sidebar);
}
.login-logo { display: block; width: min(100%, 236px); height: auto; }
.login-brand p {
    margin: .65rem 0 0;
    color: #b9c7d9;
    font-size: .8rem;
    font-weight: 500;
    letter-spacing: .06em;
    text-transform: uppercase;
}
.login-body { padding: 1.8rem 2rem 2rem; }
.login-intro { margin-bottom: 1.5rem; }
.login-intro h1 { margin: 0; color: var(--text-primary); font-size: 1.2rem; font-weight: 600; letter-spacing: -.025em; }
.login-intro p { margin: .3rem 0 0; color: var(--text-secondary); font-size: .9rem; }
.login-card .form-control { min-height: 46px; }
.login-card .password-toggle { min-width: 46px; background: #fff; }
.login-card .password-toggle:hover,
.login-card .password-toggle:focus-visible { border-color: var(--border-strong); background: var(--primary-soft); color: var(--primary); }
.login-card input:-webkit-autofill,
.login-card input:-webkit-autofill:hover,
.login-card input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text-primary);
    box-shadow: 0 0 0 1000px #ffffff inset;
}

.form-control, .form-select {
    min-height: 42px;
    border-color: var(--border-color);
    background-color: var(--bg-input);
    color: var(--text-primary);
    border-radius: var(--border-radius-sm);
}
.form-control::placeholder { color: var(--text-muted); }
.form-select option { color: var(--text-primary); }
.form-control:focus, .form-select:focus {
    border-color: var(--accent);
    background-color: var(--bg-input);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(49, 87, 127, 0.13);
}
.form-floating > label, .form-text { color: var(--text-secondary); }
.form-label { margin-bottom: 0.4rem; color: #485466; font-size: 0.84rem; font-weight: 600; }
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label { color: var(--text-secondary); }
.password-toggle { border-color: var(--border-color); color: var(--text-secondary); }

.alert-danger { border-color: #efc8cb; background: #fff0f1; color: #8b1d24; }

.modal-content, .app-modal {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}
.modal-header, .modal-footer { border-color: var(--border-color); }
.modal-title { font-weight: 600; }
.btn-close-white { filter: none; }

.toast {
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}
.toast-success { border-left: 4px solid var(--status-paid); }
.toast-error { border-left: 4px solid var(--status-pending); }
.toast-warning { border-left: 4px solid var(--status-partial); }
.toast-info { border-left: 4px solid var(--primary); }

.skeleton { min-height: 1rem; border-radius: var(--border-radius-sm); background: #e7ebf0; }

.detail-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: clamp(1.1rem, 2vw, 1.5rem);
    border-left: 4px solid var(--primary);
}
.detail-hero p { margin: 0.3rem 0 0; color: var(--text-secondary); }
.detail-actions { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; justify-content: flex-end; }
.detail-grid, .settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); margin-top: var(--space-4); }
.settings-company { grid-column: 1 / -1; }
.detail-list { display: grid; grid-template-columns: max-content 1fr; gap: .5rem 1rem; margin: 1rem 0 0; }
.detail-list dt { color: var(--text-secondary); font-weight: 600; }
.detail-list dd { margin: 0; }
.app-progress { height: 8px; background: #e4e8ed; border-radius: 4px; }
.app-progress .progress-bar { background: var(--primary); }

.form-check-input:checked { background-color: var(--primary); border-color: var(--primary); }
.form-check-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(49, 87, 127, 0.13); }