/* Base styles */
:root {
    color-scheme: dark;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0b1220;
    color: #f5f8ff;
    line-height: 1.6;
    font-size: 16px;
}

* {
    box-sizing: border-box;
}

html, body {
    min-height: 100%;
}

body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at top, rgba(62, 108, 255, 0.16), transparent 22%),
                radial-gradient(circle at 80% 10%, rgba(94, 162, 255, 0.12), transparent 18%),
                linear-gradient(180deg, #070b17 0%, #0f172a 100%);
}

button,
input {
    font: inherit;
}

button {
    cursor: pointer;
}

img, svg {
    display: block;
    max-width: 100%;
}

/* App layout */
.app-shell {
    max-width: 1080px;
    margin: 0 auto;
    padding: 2rem 1.5rem 3rem;
}

.hero {
    display: grid;
    gap: 1.75rem;
    align-items: start;
    padding: 2rem;
    border-radius: 28px;
    background: rgba(18, 26, 46, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 30px 60px rgba(2, 6, 18, 0.25);
}

.hero-copy {
    max-width: 44rem;
}

.hero-copy-centered {
    text-align: center;
}

.hero-body {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
}

.monthly-panel,
.hero-panel {
    padding: 1rem;
    border-radius: 22px;
    background: rgba(9, 16, 31, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.monthly-form {
    display: grid;
    gap: 0.5rem;
}

.monthly-table {
    width: 100%;
    border-collapse: collapse;
}

.monthly-table th,
.monthly-table td {
    padding: 0.25rem 0.4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.monthly-table label {
    font-weight: 600;
    color: #e7ecff;
    font-size: 0.9rem;
}

.monthly-table input {
    width: 100%;
    padding: 0.25rem 0.4rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: #f8fbff;
    line-height: 1.2;
    font-size: 0.95rem;
}

.monthly-table input::-webkit-outer-spin-button,
.monthly-table input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.monthly-table input:focus {
    outline: none;
    border-color: #5d8dff;
    box-shadow: 0 0 0 4px rgba(93, 141, 255, 0.18);
}

.eyebrow {
    margin: 0 0 0.75rem;
    color: #7a9cff;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-size: 0.78rem;
    font-weight: 700;
}

h1 {
    margin: 0;
    font-size: clamp(2.3rem, 3.3vw, 3.8rem);
    line-height: 1.02;
}

.hero-description {
    margin: 1rem 0 0;
    max-width: 42rem;
    color: #c8d4ff;
    font-size: 1.05rem;
}

.hero-panel {
    padding: 1.75rem;
    border-radius: 22px;
    background: rgba(9, 16, 31, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.task-form {
    display: grid;
    gap: 1rem;
}

.task-form label {
    font-weight: 600;
    color: #e7ecff;
}

.task-error {
    margin: 0;
    color: #ff7b7b;
    font-size: 0.95rem;
    min-height: 1.2rem;
}

.input-group {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.75rem;
}

input[type="text"] {
    width: 100%;
    padding: 1rem 1rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: #f8fbff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus {
    outline: none;
    border-color: #5d8dff;
    box-shadow: 0 0 0 4px rgba(93, 141, 255, 0.18);
}

.btn {
    border: none;
    border-radius: 16px;
    padding: 1rem 1.4rem;
    font-weight: 700;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, #5e8dff, #7bc7ff);
    color: #071028;
}

.text-button {
    background: transparent;
    border: none;
    color: #8da9ff;
    font-weight: 600;
    padding: 0.5rem 0;
}

.text-button:hover,
.text-button:focus-visible {
    color: #f5f8ff;
    text-decoration: underline;
}

.task-stats {
    display: grid;
    gap: 0.6rem;
    padding-top: 1rem;
    color: #c5d1ff;
}

.task-list-section {
    margin-top: 2rem;
    padding: 1.75rem;
    border-radius: 26px;
    background: rgba(9, 14, 30, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

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

.task-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.85rem;
}

.task-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 0.9rem;
    padding: 1rem 1.2rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.task-item.completed {
    opacity: 0.76;
}

.task-checkbox {
    width: 1.2rem;
    height: 1.2rem;
    accent-color: #74c7ff;
}

.task-text {
    margin: 0;
    color: #eef2ff;
    word-break: break-word;
}

.task-text.completed {
    text-decoration: line-through;
    color: #99a8cc;
}

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

.icon-button {
    border: none;
    background: rgba(255, 255, 255, 0.05);
    color: #d2d9ff;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon-button:hover,
.icon-button:focus-visible {
    background: rgba(94, 141, 255, 0.18);
    color: #ffffff;
}

.icon-button svg {
    width: 1.1rem;
    height: 1.1rem;
}

.empty-state {
    margin: 0;
    padding: 1.8rem 0;
    color: #9aa8cc;
    text-align: center;
}

@media (min-width: 720px) {
    .hero {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .hero-body {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .app-shell {
        padding: 1.5rem 1rem 2rem;
    }

    .input-group {
        grid-template-columns: 1fr;
    }

    .task-item {
        grid-template-columns: 1fr auto;
    }
}

.output-label {
    display: block;
    margin: 1rem 0 0.5rem;
    font-weight: 600;
    color: #e7ecff;
}

.output-log {
    width: 100%;
    min-height: 260px;
    resize: vertical;
    padding: 1rem;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: #f5f8ff;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
    line-height: 1.6;
}

.rate-table-grid {
    display: grid;
    gap: 0.75rem;
    margin-top: 1.25rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rate-table-card {
    padding: 1rem;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.rate-table-card h2 {
    margin: 0 0 0.75rem;
    font-size: 1.05rem;
    color: #f5f8ff;
}

.rate-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 0.5rem;
}

.rate-table th,
.rate-table td {
    padding: 0.55rem 0.65rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.rate-table th {
    color: #9bb2ff;
    font-size: 0.95rem;
    font-weight: 700;
}

.rate-table td {
    color: #e7ecff;
}

.table-note {
    margin: 0;
    color: #c5d1ff;
    font-size: 0.95rem;
}

@media (max-width: 900px) {
    .rate-table-grid {
        grid-template-columns: 1fr;
    }
}