.forecast-page {
    min-height: 100vh;
    color: var(--text-light);
    background-color: var(--bg-dark);
    font-family: "Poppins", sans-serif;
}

.container {
    max-width: 1220px;
    margin: 0 auto;
    padding: 2rem 5% 3rem;
}

.tool-topnav {
    padding: 0;
    background: linear-gradient(90deg, var(--bg-darker), var(--bg-dark));
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.tool-topnav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 1.25rem;
}

.tool-topnav h1,
.tool-header h2,
.panel h2 {
    margin: 0;
    font-family: "Patua One", cursive;
    letter-spacing: 0;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tool-topnav h1 {
    font-size: 1.25rem;
}

.tool-topnav .project-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    border: 0;
}

.tool-header {
    margin-bottom: 1.5rem;
}

.tool-header h2 {
    margin-bottom: 0.35rem;
    font-size: 2rem;
}

.tool-header p {
    max-width: 44rem;
    margin: 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.98rem;
    line-height: 1.6;
}

.forecast-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    grid-template-areas: "content navigation";
    gap: 1.5rem;
    align-items: start;
}

.forecast-content {
    grid-area: content;
    min-width: 0;
}

.forecast-page #forecast-input,
.forecast-page #manual-entry,
.forecast-page #forecast-parameters,
.forecast-page #forecast-results,
.forecast-page #forecast-chart,
.forecast-page #about-method,
.forecast-page #how-to-use,
.forecast-page #parameter-guidance,
.forecast-page #faq {
    scroll-margin-top: 6rem;
}

.forecast-side-nav {
    grid-area: navigation;
    align-self: start;
    position: sticky;
    top: 1.5rem;
    padding: 1rem;
}

.forecast-side-nav h2 {
    margin-bottom: 1rem;
}

.forecast-side-nav nav {
    display: grid;
    gap: 0.5rem;
}

.forecast-side-nav a {
    display: flex;
    align-items: center;
    min-height: 2rem;
    padding: 0.38rem 0.65rem;
    color: #e5e7eb;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.03);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition:
        background var(--transition-slow),
        border-color var(--transition-slow),
        color var(--transition-slow);
}

.forecast-side-nav a:hover,
.forecast-side-nav a:focus {
    color: var(--bg-darker);
    border-color: transparent;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    outline: none;
}

.panel {
    margin-bottom: 1.25rem;
    padding: 1.25rem;
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--border-radius-md);
    background: linear-gradient(
        180deg,
        rgba(36, 41, 46, 0.92),
        rgba(36, 41, 46, 0.78)
    );
    box-shadow: 20px 20px 20px rgba(0, 0, 0, 0.2);
}

.panel h2 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

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

.drop-zone {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 11rem;
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    border: 2px dashed rgba(153, 169, 255, 0.95);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.22);
    transition:
        background var(--transition-fast),
        border-color var(--transition-fast);
}

.drop-zone:hover,
.drop-zone:focus,
.drop-zone.drag-over {
    background: rgba(255, 255, 255, 0.28);
    border-color: rgba(153, 169, 255, 1);
    outline: none;
}

.drop-zone input {
    display: none;
}

.drop-zone p {
    margin: 0.25rem 0;
    color: rgba(255, 255, 255, 0.86);
    font-size: 0.9rem;
    line-height: 1.45;
}

.drop-zone strong {
    color: var(--primary-color);
}

.upload-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 0.75rem;
    color: rgba(99, 102, 241, 0.85);
}

.privacy-note {
    padding: 0.75rem 0.9rem;
    color: #d1fae5;
    border: 1px solid rgba(16, 185, 129, 0.35);
    border-radius: var(--border-radius-sm);
    background: rgba(16, 185, 129, 0.1);
    font-size: 0.825rem;
    font-weight: 600;
    line-height: 1.45;
}

#exampleButton {
    justify-self: start;
}

.small-button {
    justify-self: start;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    border: 1px solid rgba(38, 226, 216, 0.38);
    background: rgba(38, 226, 216, 0.08);
    color: var(--primary-color);
}

.small-button:hover {
    color: var(--bg-darker);
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.mapping-section {
    display: grid;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.03);
}

.mapping-section h3 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1rem;
}

.mapping-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
}

.mapping-section button {
    width: 100%;
}

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

.results-header h2,
.section-header h2 {
    margin-bottom: 0;
}

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

.manual-entry-header h2 {
    margin-bottom: 0;
}

.manual-table-wrap {
    max-height: 15rem;
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--border-radius-sm);
}

.manual-table {
    min-width: 0;
}

.manual-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--bg-dark);
}

.manual-table input {
    margin: 0;
    text-align: center;
}

.manual-delete-btn {
    width: 2.1rem;
    height: 2rem;
    padding: 0;
}

label {
    display: block;
    margin-bottom: 0.35rem;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.85rem;
    font-weight: 600;
}

.parameter-group {
    padding-top: 0.25rem;
}

textarea,
input,
select {
    box-sizing: border-box;
    width: 100%;
    padding: 0.65rem;
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.03);
    margin-bottom: 12px;
}

select option {
    color: var(--text-dark);
}

textarea:focus,
input:focus,
select:focus {
    border-color: var(--primary-color);
    outline: 2px solid rgba(38, 226, 216, 0.22);
    outline-offset: 1px;
}

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

button {
    padding: 8px 12px;
    border: none;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-darker);
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    transition:
        background var(--transition-slow),
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}

button:hover {
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19);
}

.reset {
    background: #f43f5e;
    color: white;
}

.reset:hover {
    background: #be123c;
}

.error {
    color: #fda4af;
    font-size: 0.9em;
    margin-bottom: 12px;
}

.hidden {
    display: none;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 460px;
}

th,
td {
    padding: 0.55rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.07);
}

th {
    color: rgba(255, 255, 255, 0.86);
    background: rgba(255, 255, 255, 0.04);
}

td {
    color: rgba(255, 255, 255, 0.82);
}

.highlight {
    font-size: 1.4em;
    font-weight: bold;
    color: var(--primary-color);
}

.chart-card {
    min-height: 320px;
}

.chart-card canvas {
    max-height: 360px;
}

.content-section {
    display: grid;
    gap: 1rem;
}

.content-section p,
.method-list li,
.guidance-card p,
.faq-section details p {
    color: rgba(255, 255, 255, 0.74);
    font-size: 0.92rem;
    line-height: 1.6;
}

.content-section p {
    margin: 0;
}

.method-list {
    display: grid;
    gap: 0.6rem;
    margin: 0;
    padding-left: 1.25rem;
}

.guidance-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.guidance-card {
    min-height: 8rem;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.03);
}

.guidance-card span {
    display: block;
    margin-bottom: 0.55rem;
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
}

.guidance-card p {
    margin: 0;
}

.faq-section {
    gap: 0.75rem;
}

.faq-section details {
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.03);
}

.faq-section summary {
    cursor: pointer;
    padding: 0.9rem 1rem;
    color: #e5e7eb;
    font-size: 0.925rem;
    font-weight: 700;
}

.faq-section summary:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.faq-section details p {
    margin: 0;
    padding: 0 1rem 1rem;
}

@media (max-width: 768px) {
    .tool-topnav-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .container {
        padding: 1.25rem 1rem 2rem;
    }

    .tool-header h2 {
        font-size: 1.6rem;
    }

    .forecast-layout {
        grid-template-columns: 1fr;
        grid-template-areas: "content";
    }

    .forecast-side-nav {
        display: none;
    }
}

@media (max-width: 560px) {
    button {
        width: 100%;
        box-sizing: border-box;
    }

    .guidance-grid {
        grid-template-columns: 1fr;
    }
}