/*
 * SPDX-FileCopyrightText: © 2013 Robin Schneider <ypid@riseup.net>
 * SPDX-FileCopyrightText: © 2016 Michael Knight <https://github.com/dex2000>
 * SPDX-FileCopyrightText: © 2020 Kristjan ESPERANTO <https://github.com/KristjanESPERANTO>
 *
 * SPDX-License-Identifier: LGPL-3.0-only
 *
 * This file is based on work under the following copyright and
 * BSD-2-Clause permission notice:
 *
 *     SPDX-FileCopyrightText: © 2012 Dmitry Marakasov <amdmi3@amdmi3.ru>
 *     All rights reserved.
 *
 *     Redistribution and use in source and binary forms, with or without
 *     modification, are permitted provided that the following conditions are met:
 *
 *     1. Redistributions of source code must retain the above copyright notice, this
 *     list of conditions and the following disclaimer.
 *
 *     2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *
 *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 *     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 *     FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *     DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 *     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 *     CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 *     OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

:root {
    color-scheme: light dark;
    --bg-body: #ffffff;
    --bg-section: #f8f9fa;
    --bg-action: #fafafa;
    --bg-input: #fff;
    --text-primary: #333;
    --text-heading: #2c3e50;
    --text-muted: #6c757d;
    --bg-muted: #e9ecef;
    --text-on-muted: #495057;
    --border-muted: #ced4da;
    --bg-button: #ffffff;
    --text-button: #4a7ba7;
    --hero-btn-bg: rgba(255, 255, 255, 0.95);
    --hero-btn-color: #2c5f8d;
    --hero-btn-border: rgba(255, 255, 255, 0.6);
    --warning-bg: #fff3cd;
    --warning-text: #856404;
    --warning-border: #ffeaa7;
    --link-color: #007bff;
    --border-color: #dee2e6;
    --border-action: #e9ecef;
    --token-year-bg: #ff851b;
    --token-year-text: #111;
    --token-week-bg: #ffdc00;
    --token-week-text: #111;
    --token-month-bg: #88ff88;
    --token-month-text: #111;
    --token-time-bg: #88ccff;
    --token-time-text: #111;
    --token-separator-bg: #3d9970;
    --token-separator-text: #111;
    --token-state-bg: #ffccff;
    --token-state-text: #111;
    --token-comment-bg: #dddddd;
    --token-comment-text: #111;
    --shadow-sm: rgba(0, 0, 0, 0.06);
    --shadow-md: rgba(0, 0, 0, 0.1);
    --hero-gradient-start: #ccd6dd;
    --hero-gradient-end: #9dbad2;
}

/* Dark mode via data-theme attribute */
body[data-theme="dark"] {
    color-scheme: dark;
    --bg-body: #1a1a1a;
    --bg-section: #242424;
    --bg-action: #2a2a2a;
    --bg-input: #2f2f2f;
    --text-primary: #e0e0e0;
    --text-heading: #f0f0f0;
    --text-muted: #9aa0a6;
    --bg-muted: #383838;
    --text-on-muted: #c8c8c8;
    --border-muted: #555555;
    --bg-button: #2f2f2f;
    --text-button: #6c94c4;
    --hero-btn-bg: rgba(255, 255, 255, 0.12);
    --hero-btn-color: #c8dff0;
    --hero-btn-border: rgba(255, 255, 255, 0.25);
    --warning-bg: #332800;
    --warning-text: #ffd000;
    --warning-border: #665200;
    --link-color: #6baed6;
    --border-color: #404040;
    --border-action: #3a3a3a;
    --token-year-bg: #b45309;
    --token-year-text: #fff7ed;
    --token-week-bg: #a16207;
    --token-week-text: #fffbeb;
    --token-month-bg: #166534;
    --token-month-text: #ecfdf5;
    --token-time-bg: #1d4ed8;
    --token-time-text: #eff6ff;
    --token-separator-bg: #14532d;
    --token-separator-text: #dcfce7;
    --token-state-bg: #9d174d;
    --token-state-text: #fdf2f8;
    --token-comment-bg: #374151;
    --token-comment-text: #f3f4f6;
    --shadow-sm: rgba(0, 0, 0, 0.3);
    --shadow-md: rgba(0, 0, 0, 0.4);
    --hero-gradient-start: #3a4a5a;
    --hero-gradient-end: #2a3a4a;
}

body[data-theme="light"] {
    color-scheme: light;
}

/* Dark mode via browser preference (if no data-theme set) */
@media (prefers-color-scheme: dark) {
    body:not([data-theme]) {
        --bg-body: #1a1a1a;
        --bg-section: #242424;
        --bg-action: #2a2a2a;
        --bg-input: #2f2f2f;
        --text-primary: #e0e0e0;
        --text-heading: #f0f0f0;
        --text-muted: #9aa0a6;
        --bg-muted: #383838;
        --text-on-muted: #c8c8c8;
        --border-muted: #555555;
        --bg-button: #2f2f2f;
        --text-button: #6c94c4;
        --hero-btn-bg: rgba(255, 255, 255, 0.12);
        --hero-btn-color: #c8dff0;
        --hero-btn-border: rgba(255, 255, 255, 0.25);
        --warning-bg: #332800;
        --warning-text: #ffd000;
        --warning-border: #665200;
        --link-color: #6baed6;
        --border-color: #404040;
        --border-action: #3a3a3a;
        --token-year-bg: #b45309;
        --token-year-text: #fff7ed;
        --token-week-bg: #a16207;
        --token-week-text: #fffbeb;
        --token-month-bg: #166534;
        --token-month-text: #ecfdf5;
        --token-time-bg: #1d4ed8;
        --token-time-text: #eff6ff;
        --token-separator-bg: #14532d;
        --token-separator-text: #dcfce7;
        --token-state-bg: #9d174d;
        --token-state-text: #fdf2f8;
        --token-comment-bg: #374151;
        --token-comment-text: #f3f4f6;
        --shadow-sm: rgba(0, 0, 0, 0.3);
        --shadow-md: rgba(0, 0, 0, 0.4);
        --hero-gradient-start: #3a4a5a;
        --hero-gradient-end: #2a3a4a;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    transition: background-color 0.5s ease, color 0.4s ease;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

#theme-toggle {
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background: var(--bg-section);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

#theme-toggle:hover {
    background: var(--bg-action);
    border-color: var(--border-color);
    color: var(--text-primary);
}

#theme-toggle:focus-visible {
    outline: 2px solid var(--link-color);
    outline-offset: 1px;
}

.header-logo {
    padding-left: 1rem;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

h1 {
    color: var(--text-heading);
    margin: 0;
    font-size: 1.8rem;
}

#language-selector {
    flex-shrink: 0;
}

#language-selector select {
    max-width: 100%;
}

.examples-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    background: none;
    border: none;
    padding: 0.5rem 0;
    cursor: pointer;
    text-align: left;
    color: var(--text-heading);
}

.examples-toggle-btn:hover {
    color: var(--text-primary);
}

.examples-toggle-btn h2 {
    margin: 0;
    display: inline;
}

.toggle-icon {
    font-size: 1rem;
    transition: transform 0.3s;
    color: var(--text-muted);
}

.examples-toggle-btn:hover .toggle-icon {
    color: var(--text-primary);
}

.examples-toggle-btn.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 0.5rem;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .header-left {
        width: 100%;
    }

    h1 {
        font-size: 1.4rem;
    }

    #language-selector {
        width: 100%;
    }

    #language-selector select {
        width: 100%;
        font-size: 0.9rem;
    }

    /* Hero section sticky disable on Mobile */
    #value-input-section {
        position: static;
    }

    /* Touch-Targets larger on Mobile */
    .copy-btn,
    .input-btn {
        min-height: 44px;
        padding: 0.5rem 0.6rem;
    }

    /* Date-Time Grid vertical on Mobile */
    #date-time-inputs {
        grid-auto-flow: row;
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        justify-items: stretch;
        overflow-x: visible;
    }

    #date-time-inputs h2 {
        grid-column: 1 / -1;
    }

    .time-btn-wrapper {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.2rem;
    }

    .time-btn-label-top,
    .time-btn-label-bottom {
        grid-row: auto;
    }

    .time-btn-group {
        grid-row: auto;
    }
}

main {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

section {
    background: var(--bg-section);
    padding: 1rem 1.25rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px var(--shadow-sm);
}

#value-input-section {
    background: linear-gradient(135deg, var(--hero-gradient-start) 0%, var(--hero-gradient-end) 100%);
    border: none;
    position: sticky;
    top: 0;
    z-index: 100;
}

#value-input-section.scrolled {
    box-shadow: 0 6px 20px var(--shadow-md);
}

#value-input-section h2,
#value-input-section h3 {
    color: var(--text-heading);
    text-shadow: none;
}

#value-input-section h3 {
    font-size: 0.9rem;
    font-weight: 400;
    opacity: 0.8;
    margin-bottom: 0.75rem;
}

.permalink {
    font-size: 0.9em;
    color: var(--text-muted);
}

#action-compare {
    padding: 0.75rem;
    padding-left: 1rem;
    border-radius: 6px;
    border: 1px solid var(--border-action);
    border-left: 4px solid #4a7ba7;
    margin-bottom: 0.75rem;
    background-color: var(--bg-action);
    transition: background-color 0.2s ease;
}

#action-compare:hover {
    background-color: var(--bg-section);
}

#action-compare .action-description {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9em;
    margin-bottom: 0.5rem;
}

#action-compare input {
    width: 98%;
}

#show_prettified_value:empty {
    display: none;
}

/* Ensure diff_value input has black text when colored background is applied */
#diff_value {
    color: #000 !important;
}

#action-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: stretch;
}

#action-links .action-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1 1 250px;
    min-width: min(100%, 250px);
    padding: 0.75rem;
    padding-left: 1rem;
    border-radius: 6px;
    border: 1px solid var(--border-action);
    border-left: 4px solid #4a7ba7;
    background-color: var(--bg-action);
    transition: background-color 0.2s ease;
}

#action-links .action-item:hover {
    background-color: var(--bg-section);
}

#action-links #action-yohours {
    flex: 0 0 auto;
}

#action-links .action-description {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9em;
}

.permalink-variants {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.permalink-variant {
    flex: 1;
    min-width: 150px;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.variant-label {
    font-size: 0.85em;
    color: var(--text-muted);
    font-weight: 500;
}

.variant-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.copy-btn {
    padding: 0.3rem 0.5rem;
    background: var(--bg-button);
    color: var(--text-button);
    border: 2px solid #6c94c4;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
    white-space: nowrap;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    font-weight: 500;
}

.copy-permalink-btn {
    background-color: var(--bg-input);
}

.copy-btn:hover,
.copy-permalink-btn:hover {
    background: #6c94c4;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(74, 123, 167, 0.3);
}

.yohours-warning {
    font-size: 0.85em;
    color: var(--warning-text);
    background-color: var(--warning-bg);
    border: 1px solid var(--warning-border);
    padding: 0.5rem;
    border-radius: 4px;
}

#action-links .action-item a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
}

#action-links .action-item a:hover {
    text-decoration: underline;
}

#action-permalink .permalink {
    display: inline;
}

.action-item {
    background-color: var(--bg-action);
}

p.value_explanation {
    background-color: var(--bg-section);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: auto;
    padding: 1rem;
    border-radius: 6px;
    margin: 0.5rem 0;
}
/* See https://clrs.cc/ */
.error {
    background: #ff851b; /* Orange */
    color: #111;
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
}

.warning {
    background: #ffdc00; /* Yellow */
    color: #111;
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
}

div.warning_error_message {
    margin: 0.5rem 0;
    padding: 0.75rem;
    background-color: var(--bg-body);
    color: var(--text-primary);
    opacity: 0.9;
    border-left: 4px solid #ff851b;
    border-radius: 4px;
}

.warning-entry + .warning-entry {
    margin-top: 0.6rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--border-color);
}

.warning-context {
    margin-bottom: 0.25rem;
    word-break: break-all;
    font-size: 0.95rem;
}

.warning-marker::after {
    content: '←';
    color: #ff4136;
    display: inline-block;
    font-size: 2em;
    font-weight: bold;
    line-height: 0.7;
    margin: 0 0.15rem;
    position: relative;
    top: 0.11em;
}

.diff-deviation {
    margin: 0.75rem 0;
    padding: 0.75rem;
    background-color: var(--bg-section);
    border-left: 4px solid #FFA500; /* Orange for diff/warning */
    border-radius: 4px;
}

.diff-times {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.diff-raw {
    margin-top: 0.5rem;
    padding: 0.5rem;
    background-color: var(--bg-input);
    border-radius: 3px;
    font-size: 0.85rem;
    opacity: 0.8;
}

.diff-raw code {
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
    word-break: break-all;
}

.diff-rules {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    opacity: 0.9;
}

span.year    { background: var(--token-year-bg); color: var(--token-year-text) } /* Orange */
span.week    { background: var(--token-week-bg); color: var(--token-week-text) } /* Yellow */
span.month   { background: var(--token-month-bg); color: var(--token-month-text) }
span.time    { background: var(--token-time-bg); color: var(--token-time-text) }
span.rule_separator    { background: var(--token-separator-bg); color: var(--token-separator-text) } /* Olive */
/* span.one_rule { text-decoration: underline } */
a.specification { color: inherit; text-decoration: none }

a {
    color: var(--link-color);
    text-decoration: underline;
    text-decoration-style: dotted;
}

a:hover {
    text-decoration-style: solid;
}

span.state   { background: var(--token-state-bg); color: var(--token-state-text) }
span.comment { background: var(--token-comment-bg); color: var(--token-comment-text) } /* Silver */

noscript { color: #AA4400 }
h2 {
    color: var(--text-heading);
    font-weight: 600;
    margin: 0 0 0.1rem 0;
    font-size: 1.1rem;
}

h3 {
    color: var(--text-heading);
    font-weight: 500;
    margin: 0.3rem 0 0.3rem 0;
    font-size: 1rem;
}

#expression {
    width: 100%;
    padding: 1rem 1.25rem;
    border: none;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    background-color: var(--bg-input);
    color: var(--text-primary);
    box-shadow: 0 2px 10px var(--shadow-md);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

#expression:focus {
    outline: none;
    box-shadow: 0 4px 20px var(--shadow-md);
    transform: translateY(-1px);
}

#value-input-section .input-btn {
    background: var(--hero-btn-bg);
    color: var(--hero-btn-color);
    padding: 0.5rem 0.75rem;
    font-size: 1rem;
    border: 2px solid var(--hero-btn-border);
    font-weight: 500;
}

#value-input-section .input-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    color: #2c5f8d;
    border-color: rgba(255, 255, 255, 0.9);
}

/* Override for copy button to have consistent hover color */
#value-input-section .copy-input-btn:hover {
    background: #6c94c4;
    color: #fff;
    border-color: #6c94c4;
}

#value-input-section .clear-input-btn:hover {
    background: #fff;
    color: #e53e3e;
    border-color: rgba(255, 255, 255, 0.9);
}

#diff_value, .w100 {
    width: 98%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    background-color: var(--bg-input);
    color: var(--text-primary);
}

.input-button-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.input-button-group input {
    flex: 1;
}

.input-btn {
    padding: 0.3rem 0.5rem;
    background: var(--bg-button);
    color: var(--text-button);
    border: 2px solid #6c94c4;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9em;
    white-space: nowrap;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    flex-shrink: 0;
    font-weight: 500;
}

.input-btn:hover {
    background: #6c94c4;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(74, 123, 167, 0.3);
}

.clear-input-btn:hover {
    background: #e53e3e;
    color: #fff;
    border-color: #e53e3e;
}

.nostyle { border: none }

#date-time-inputs {
    display: grid;
    grid-template-rows: auto auto auto auto;
    grid-auto-flow: column;
    grid-auto-columns: minmax(min-content, max-content);
    gap: 0.4rem 0.4rem;
    align-items: center;
    justify-items: center;
    overflow-x: auto;
    max-width: 100%;
}

#date-time-inputs h2 {
    grid-column: 1 / -1;
    grid-row: 1;
}

#position-inputs h2,
#mode-selector h2 {
    width: 100%;
    display: block;
}

.date-info-badge {
    display: inline-block;
    padding: 0.4rem 0.7rem;
    background-color: var(--bg-muted);
    color: var(--text-on-muted);
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    min-width: 3em;
    text-align: center;
}

input {
    margin-right: 0.5rem;
}

input[type="number"] {
    width: 3em;
    padding: 0.4rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--bg-input);
    color: var(--text-primary);
}

input[type="number"].input__year {
    width: 4.5em;
}

input[type="number"].input__coordinate {
    width: 8em;
    font-size: 0.75rem;
    font-family: 'Courier New', 'Consolas', monospace;
}

input:read-only {
    background-color: var(--bg-muted);
    border: 1px solid var(--border-muted);
    color: var(--text-primary);
    border-radius: 4px;
    padding: 0.4rem;
    margin: 0 0.5rem 0 0;
}

select {
    padding: 0.4rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--bg-input);
    color: var(--text-primary);
}

button {
    padding: 0.35rem 0.7rem;
    border: 1px solid #6c757d;
    border-radius: 4px;
    background-color: #6c757d;
    color: white;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
    white-space: nowrap;
}

button:hover {
    background-color: #5a6268;
    border-color: #545b62;
}

button:active {
    transform: translateY(1px);
}

/* Disable translateY for time buttons - use color change instead */
.time-btn:active,
.time-btn-now:active {
    transform: none;
    background-color: #495057;
}

.time-btn-now {
    background-color: #28a745;
    border-color: #28a745;
    font-weight: 600;
    grid-row: 3;
}

.time-btn-now:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

.time-btn-now:active {
    background-color: #1c7430;
}

.time-btn-wrapper {
    display: contents;
}

.time-btn-label-top {
    font-size: 0.75rem;
    grid-row: 2;
}

.time-btn-label-bottom {
    font-size: 0.75rem;
    font-weight: 600;
    grid-row: 4;
}

.time-btn-group {
    grid-row: 3;
    display: inline-flex;
    align-items: stretch;
    border: 1px solid #6c757d;
    border-radius: 4px;
    overflow: hidden;
}

.time-btn-group .time-btn {
    border: none;
    border-radius: 0;
    padding: 0.35rem 0.5rem;
    min-width: 2rem;
    align-self: stretch;
}

.time-btn-group .time-btn-minus {
    border-right: 1px solid #5a6268;
}

.time-btn-group .time-btn-plus {
    border-left: 1px solid #5a6268;
}

.time-btn-label {
    min-width: 2ch;
    padding: 0.35rem 0.6rem;
    font-size: 0.85rem;
    color: var(--text-on-muted);
    background-color: var(--bg-muted);
    user-select: none;
    white-space: nowrap;
    font-family: 'Courier New', 'Consolas', monospace;
    font-variant-numeric: tabular-nums;
    display: flex;
    align-items: center;
}

.time-btn-label.editable {
    background-color: var(--bg-section);
    user-select: text;
    cursor: text;
    outline: none;
    transition: background-color 0.15s;
}

.time-btn-label.editable:hover {
    background-color: var(--bg-muted);
}

.time-btn-label.editable:focus {
    background-color: var(--bg-input);
    box-shadow: inset 0 0 0 1px #80bdff;
}

#time-btn-value-year {
    min-width: 4ch;
}

/* Matching rule card */
.matching-rule-card {
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px var(--shadow-sm);
}

.status-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.matching-rule-value {
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Prettified value section */
.prettified-value-section {
    margin: 1rem 0;
}

.prettified-value-section p {
    margin-bottom: 0.5rem;
}

.prettified-value-container {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.prettified-value-display {
    flex: 1;
    padding: 0.75rem 1rem;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    background: var(--bg-input);
    cursor: pointer;
    word-break: break-all;
    transition: background-color 0.2s;
}

.prettified-value-display:hover {
    background: var(--bg-action);
}

/* Copy button in prettified value section */
.copy-prettified-btn {
    padding: 0.75rem 1rem;
    background: var(--bg-section);
    border: none;
    border-left: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color 0.2s, color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.copy-prettified-btn::after {
    content: attr(title);
    font-size: 0.85rem;
    opacity: 0.8;
}

.copy-prettified-btn:hover {
    background: #6c94c4;
    color: #fff;
}

.copy-prettified-btn:hover::after {
    opacity: 1;
}

/* Status info paragraphs */
.status-info {
    padding: 1rem;
    border-radius: 8px;
    margin: 0.5rem 0;
    border-left: 4px solid;
    background: var(--bg-section);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* Time jump button (for "Opens again", "Closes again") */
.time-jump-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    margin-left: 0.5rem;
    background: var(--bg-action);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.time-jump-btn:hover {
    background: #6c94c4;
    color: #fff;
    border-color: #6c94c4;
    transform: translateX(2px);
}

.time-jump-btn::before {
    content: '⏭';
    font-size: 0.85rem;
}

.time-jump-btn::after {
    content: '↗';
    font-size: 0.75rem;
    opacity: 0.7;
}

.status-info.open {
    border-left-color: #28a745;
    background: linear-gradient(to right, rgba(40, 167, 69, 0.08), var(--bg-section));
}

.status-info.closed {
    border-left-color: #dc3545;
    background: linear-gradient(to right, rgba(220, 53, 69, 0.08), var(--bg-section));
}

.status-info.unknown {
    border-left-color: #ffc107;
    background: linear-gradient(to right, rgba(255, 193, 7, 0.08), var(--bg-section));
}

.status-info a.time-jump {
    color: var(--text-primary);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-style: dotted;
    cursor: pointer;
}

.status-info a.time-jump:hover {
    text-decoration-style: solid;
}

/* Status reason (comment/holiday) */
.status-reason {
    margin: -0.5rem 0 0.8rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    opacity: 0.85;
}

.public-holiday-status {
    display: block;
    margin-top: 0.7rem;
    color: var(--warning-text);
    font-size: 0.9rem;
}

/* Next change highlight */
.status-info.next-change {
    margin-top: 0.8rem;
    padding: 0.6rem 1rem;
    background: var(--bg-section);
    border-radius: 6px;
    border-left: 3px solid;
}

.status-info.next-change.opened {
    border-left-color: #28a745;
}

.status-info.next-change.closed {
    border-left-color: #dc3545;
}

/* Upcoming Changes Timeline */
.upcoming-changes {
    margin: 1.5rem 0;
    padding: 0;
    background: var(--bg-section);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.upcoming-changes summary {
    padding: 1rem 1.2rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-heading);
    font-size: 0.95rem;
    user-select: none;
}

.upcoming-changes summary:hover {
    background: var(--bg-body);
}

.upcoming-changes[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.upcoming-changes .timeline-hint {
    margin: 0;
    padding: 0.8rem 1.2rem;
    font-size: 0.85rem;
    color: var(--text-primary);
    opacity: 0.7;
    font-style: italic;
    background: var(--bg-body);
}

.upcoming-changes .timeline {
    list-style: none;
    padding: 0.5rem 1.2rem 1.2rem;
    margin: 0;
}

.timeline-item {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.8rem;
    margin-bottom: 0.5rem;
    background: var(--bg-body);
    border-radius: 6px;
    border-left: 3px solid;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item.opened {
    border-left-color: #28a745;
    background: linear-gradient(to right, rgba(40, 167, 69, 0.05), var(--bg-body));
}

.timeline-item.closed {
    border-left-color: #dc3545;
    background: linear-gradient(to right, rgba(220, 53, 69, 0.05), var(--bg-body));
}

/* Boundary-only items (no state change) are more subtle */
.timeline-item.boundary-only {
    opacity: 0.6;
    border-left-style: dashed;
}

.timeline-icon {
    font-size: 1rem;
    margin-right: 0.8rem;
    min-width: 20px;
    text-align: center;
}

.timeline-time {
    font-weight: 600;
    color: var(--text-heading);
    min-width: 120px;
    margin-right: 0.8rem;
}

.timeline-arrow {
    color: var(--text-primary);
    opacity: 0.5;
    margin-right: 0.8rem;
}

.timeline-state {
    font-weight: 500;
    color: var(--text-primary);
}

.timeline-comment {
    margin-left: 0.5rem;
    font-style: italic;
    opacity: 0.8;
    font-size: 0.95rem;
}

/* Responsive adjustments for timeline */
@media (max-width: 768px) {
    .timeline-item {
        flex-wrap: wrap;
        padding: 0.5rem;
    }

    .timeline-time {
        min-width: 100px;
        font-size: 0.9rem;
    }

    .timeline-comment {
        width: 100%;
        margin-left: 28px;
        margin-top: 0.3rem;
    }
}

/* Footer */
#footer {
    margin-top: 4rem;
    padding: 2.5rem 2rem;
    border-top: 3px solid var(--border-color);
    background: linear-gradient(to bottom, var(--bg-section), var(--bg-body));
    font-size: 0.9rem;
    color: var(--text-primary);
    text-align: center;
}

#footer p {
    margin: 0.8rem auto;
    opacity: 0.85;
    max-width: 900px;
    line-height: 1.6;
}

#footer a {
    color: var(--text-primary);
    text-decoration: underline;
    text-decoration-style: dotted;
}

#footer a:hover {
    text-decoration-style: solid;
    color: #6c94c4;
}