:root {
    --bg: #252444;
    --surface: #2f2d59;
    --surface-alt: #37356a;
    --line: rgba(255, 255, 255, 0.12);
    --text: #f4f4ff;
    --muted: #ceccef;
    --accent: #6f6de8;
    --accent-strong: #8d8bff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: futura-pt, sans-serif;
    background:
        radial-gradient(circle at top, rgba(111, 109, 232, 0.28), transparent 35%),
        linear-gradient(180deg, #21203b 0%, var(--bg) 100%);
    color: var(--text);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: rgba(111, 109, 232, 0.92);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-links,
.nav-session {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

nav a {
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    color: var(--text);
    font-size: 1.2rem;
    text-decoration: none;
}

nav a:hover,
nav a:focus-visible {
    background-color: rgba(255, 255, 255, 0.16);
}

.nav-status {
    color: var(--text);
    font-size: 0.95rem;
    opacity: 0.9;
}

.nav-logout {
    min-height: 2.25rem;
    padding: 0.45rem 0.85rem;
}

.page-shell {
    width: min(1080px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2.5rem 0 4rem;
}

.page-header {
    margin-bottom: 1.75rem;
}

.eyebrow {
    margin: 0 0 0.5rem;
    color: var(--accent-strong);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
p,
label {
    margin-top: 0;
    color: var(--text);
}

h1 {
    margin-bottom: 0.75rem;
    font-size: clamp(2.4rem, 6vw, 4rem);
    line-height: 0.96;
}

h2 {
    margin-bottom: 0.35rem;
    font-size: 1.4rem;
}

.lede,
.panel-copy,
.status-text,
.bill-id,
.bill-empty {
    color: var(--muted);
}

.lede {
    max-width: 44rem;
    font-size: 1.05rem;
    line-height: 1.5;
}

.panel {
    padding: 1.25rem;
    border: 1px solid var(--line);
    border-radius: 1.25rem;
    background-color: rgba(47, 45, 89, 0.9);
    box-shadow: 0 20px 40px rgba(10, 10, 25, 0.24);
}

.panel-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: end;
    margin-bottom: 1rem;
}

.button-link,
button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding: 0.7rem 1rem;
    border: 0;
    border-radius: 999px;
    background: var(--accent);
    color: var(--text);
    font: inherit;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.button-link:hover,
button:hover,
.button-link:focus-visible,
button:focus-visible {
    background: var(--accent-strong);
}

.search-form {
    margin-bottom: 1rem;
}

.detail-shell {
    display: grid;
    gap: 1.5rem;
}

.detail-panel {
    display: grid;
    gap: 1.25rem;
}

.detail-head {
    align-items: start;
}

.detail-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.9rem;
}

.detail-item {
    padding: 0.95rem 1rem;
    border: 1px solid var(--line);
    border-radius: 0.95rem;
    background-color: rgba(255, 255, 255, 0.03);
}

.detail-label {
    margin: 0 0 0.45rem;
    color: var(--accent-strong);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.detail-value,
.detail-copy {
    margin: 0;
    color: var(--text);
    line-height: 1.5;
}

.detail-copy-block {
    display: grid;
    gap: 0.45rem;
}

.detail-summary[data-state='empty'],
.detail-summary[data-state='error'] {
    color: var(--muted);
    font-style: italic;
}

.filters {
    display: grid;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 1rem;
    background-color: rgba(255, 255, 255, 0.04);
}

.filter-group {
    display: grid;
    gap: 0.55rem;
}

.filter-label {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 600;
}

.filter-pill-row {
    display: flex;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.filter-pill {
    min-height: 2.4rem;
    padding: 0.55rem 0.95rem;
    background: transparent;
    border: 1px solid var(--line);
}

.filter-pill:hover,
.filter-pill:focus-visible {
    background: rgba(255, 255, 255, 0.08);
}

.filter-pill[data-active="true"] {
    background: var(--accent);
    border-color: transparent;
}

.clear-filters-button {
    justify-self: start;
}

.auth-shell {
    max-width: 36rem;
}

.auth-panel {
    display: grid;
    gap: 1rem;
}

.auth-form {
    display: grid;
    gap: 0.85rem;
}

.auth-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.35rem;
}

.secondary-link {
    background: transparent;
    border: 1px solid var(--line);
}

.secondary-link:hover,
.secondary-link:focus-visible {
    background: rgba(255, 255, 255, 0.08);
}

.auth-status {
    margin-bottom: 0;
    padding: 0.9rem 1rem;
    border: 1px solid var(--line);
    border-radius: 0.9rem;
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--muted);
    line-height: 1.45;
}

.auth-status[data-state="success"] {
    border-color: rgba(111, 232, 162, 0.4);
    background-color: rgba(111, 232, 162, 0.12);
    color: #d9ffeb;
}

.auth-status[data-state="error"] {
    border-color: rgba(255, 120, 120, 0.45);
    background-color: rgba(255, 120, 120, 0.1);
    color: #ffd7d7;
}

.search-label {
    display: block;
    margin-bottom: 0.45rem;
    font-size: 0.95rem;
}

.search-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem;
}

input {
    width: 100%;
    min-height: 2.75rem;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--line);
    border-radius: 0.9rem;
    background-color: rgba(255, 255, 255, 0.06);
    color: var(--text);
    font: inherit;
}

select {
    width: min(16rem, 100%);
    min-height: 2.75rem;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--line);
    border-radius: 0.9rem;
    background-color: rgba(255, 255, 255, 0.06);
    color: var(--text);
    font: inherit;
}

input::placeholder {
    color: rgba(244, 244, 255, 0.5);
}

.status-text {
    min-height: 1.5rem;
    margin-bottom: 1rem;
}

.favorite-status {
    margin-top: -0.35rem;
}

.favorite-status[data-state="error"] {
    color: #ffd7d7;
}

.bill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.bill-card {
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 1rem;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 100%),
        var(--surface);
    cursor: pointer;
    transition: border-color 120ms ease, transform 120ms ease;
}

.bill-card:hover,
.bill-card:focus-visible {
    border-color: var(--accent-strong);
    transform: translateY(-1px);
    outline: none;
}

.bill-card h3 {
    margin: 0 0 0.65rem;
    font-size: 1.1rem;
    line-height: 1.25;
}

.bill-card-header {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: start;
}

.bill-card-header h3 {
    margin-bottom: 0;
}

.card-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.summary-button {
    background: transparent;
    border: 1px solid var(--line);
}

.summary-button:hover,
.summary-button:focus-visible {
    background: rgba(255, 255, 255, 0.08);
}

.ghost-button {
    background: transparent;
    border: 1px solid var(--line);
}

.ghost-button:hover,
.ghost-button:focus-visible {
    background: rgba(255, 255, 255, 0.08);
}

.favorite-button[data-state="saved"] {
    background: #4fbe7f;
}

.favorite-button[data-state="saved"]:hover,
.favorite-button[data-state="saved"]:focus-visible {
    background: #63d08f;
}

.favorite-button[data-state="login-required"] {
    background: transparent;
    border: 1px solid var(--line);
}

.favorite-button[data-state="login-required"]:hover,
.favorite-button[data-state="login-required"]:focus-visible {
    background: rgba(255, 255, 255, 0.08);
}

button:disabled {
    opacity: 0.7;
    cursor: wait;
}

.bill-id {
    margin: 0;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.bill-meta {
    margin: 0.75rem 0 0;
    color: var(--muted);
    font-size: 0.92rem;
}

.summary-modal[hidden] {
    display: none;
}

.summary-modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.summary-modal-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgba(20, 19, 40, 0.7);
    backdrop-filter: blur(4px);
}

.summary-modal-panel {
    position: relative;
    width: min(720px, 100%);
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
    padding: 1.75rem 2rem 2rem;
    border: 1px solid var(--line);
    border-radius: 1.25rem;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 100%),
        var(--surface);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.summary-modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--text);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}

.summary-modal-close:hover,
.summary-modal-close:focus-visible {
    background-color: rgba(255, 255, 255, 0.1);
    outline: none;
}

.summary-modal-id {
    margin: 0 0 0.5rem;
}

.summary-modal-title {
    margin: 0 0 1rem;
    font-size: 1.35rem;
    line-height: 1.3;
}

.summary-modal-body {
    margin: 0;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--muted);
    white-space: pre-wrap;
}

.summary-modal-body[data-state='loading'],
.summary-modal-body[data-state='empty'],
.summary-modal-body[data-state='error'] {
    font-style: italic;
    opacity: 0.8;
}

body.modal-open {
    overflow: hidden;
}

.bill-empty {
    grid-column: 1 / -1;
    padding: 1.25rem;
    border: 1px dashed var(--line);
    border-radius: 1rem;
    background-color: rgba(255, 255, 255, 0.03);
}

@media (max-width: 700px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links,
    .nav-session {
        width: 100%;
    }

    .panel-head,
    .search-row {
        grid-template-columns: 1fr;
        display: grid;
    }

    .page-shell {
        width: min(100% - 1rem, 1080px);
        padding-top: 1.5rem;
    }

    .auth-actions {
        display: grid;
    }

    .detail-actions {
        display: grid;
    }
}