/**
 * ISO 20022 Address Structuring Game
 * Copyright (C) 2026 https://github.com/xdubois-57/iso20022-address-game
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

/* =========================================================
   Swift.com Branding Palette
   ========================================================= */
:root {
    --swift-blue: #00354e;
    --swift-blue-light: #1a8fdd;
    --swift-gold: #e8a800;
    --swift-slate: #6b7280;
    --swift-bg: #f7f8fa;
    --swift-white: #ffffff;
    --swift-danger: #d32f2f;
    --swift-success: #2e7d32;
    --pico-primary: #00354e;
    --pico-primary-hover: #002438;
}

/* =========================================================
   Global
   ========================================================= */
html, body {
    margin: 0;
    padding: 0;
    background: var(--swift-bg);
    color: #1e293b;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    overflow-x: hidden;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    font-size: 15px;
    line-height: 1.5;
}

/* =========================================================
   Header
   ========================================================= */
.game-header {
    background: var(--swift-blue);
    color: var(--swift-white);
    padding: 1rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.4rem;
    margin: 0;
    font-weight: 700;
    color: var(--swift-gold);
}

.header-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    background: rgba(255,255,255,0.12);
    color: var(--swift-white);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 8px;
    padding: 0.6rem 1.3rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    letter-spacing: 0.01em;
}

.nav-btn:hover, .nav-btn:focus {
    background: rgba(255,255,255,0.25);
}

.nav-btn.active {
    background: var(--swift-gold);
    color: var(--swift-blue);
    border-color: var(--swift-gold);
}

.stop-btn {
    background: var(--swift-danger);
    border-color: var(--swift-danger);
}

.stop-btn:hover {
    background: #b71c1c;
}

/* =========================================================
   Footer
   ========================================================= */
.game-footer {
    text-align: center;
    padding: 0.75rem;
    font-size: 0.85rem;
}

.privacy-link {
    color: var(--swift-slate);
    text-decoration: underline;
    cursor: pointer;
}

/* =========================================================
   Main / SPA Container
   ========================================================= */
.game-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    min-height: calc(100vh - 120px);
}

/* =========================================================
   Game Screen — Two-panel landscape layout
   ========================================================= */
.game-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    min-height: 60vh;
}

.source-panel, .target-panel {
    background: var(--swift-white);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.source-panel h2, .target-panel h2 {
    font-size: 1.15rem;
    color: var(--swift-blue);
    margin-bottom: 0.75rem;
}

.hint-text {
    font-size: 0.9rem;
    color: var(--swift-slate);
    margin-bottom: 1rem;
}

/* =========================================================
   Chips (draggable)
   ========================================================= */
.chip-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    min-height: 60px;
    padding: 0.75rem;
    border: 2px dashed var(--swift-slate);
    border-radius: 8px;
    background: var(--swift-bg);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--swift-blue);
    color: var(--swift-white);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: grab;
    touch-action: none;
    transition: transform 0.15s, box-shadow 0.15s;
    white-space: nowrap;
}

.chip:active {
    cursor: grabbing;
    transform: scale(1.06);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.chip.dragging {
    opacity: 0.5;
}

.chip-label {
    font-size: 0.7rem;
    color: var(--swift-gold);
    font-weight: 400;
}

/* =========================================================
   Slots (drop targets)
   ========================================================= */
.slot-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.slot {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--swift-bg);
    border: 2px solid #dde2e8;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    min-height: 48px;
    transition: border-color 0.2s, background 0.2s;
}

.slot.drag-over {
    border-color: var(--swift-gold);
    background: #fdf8e8;
}

.slot.filled {
    border-color: var(--swift-blue);
    background: #e8f0f8;
}

.slot.mandatory {
    border-left: 4px solid var(--swift-gold);
}

.slot-tag {
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--swift-slate);
    min-width: 100px;
}

.slot-label {
    font-size: 0.85rem;
    color: var(--swift-slate);
    flex: 1;
}

.slot-chip {
    display: inline-flex;
    align-items: center;
    background: var(--swift-blue);
    color: var(--swift-white);
    border-radius: 20px;
    padding: 0.35rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.slot-remove {
    background: none;
    border: none;
    color: var(--swift-white);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0 0.3rem;
    margin-left: 0.3rem;
    opacity: 0.7;
}

.slot-remove:hover {
    opacity: 1;
}

.goal-badge {
    display: inline-block;
    background: var(--swift-gold);
    color: var(--swift-blue);
    border-radius: 4px;
    padding: 0.2rem 0.6rem;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn-primary {
    background: var(--swift-blue);
    color: var(--swift-white);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover:not(:disabled) {
    background: #002438;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--swift-slate);
    color: var(--swift-white);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-secondary:hover {
    background: #5a5c5f;
}

.btn-danger {
    background: var(--swift-danger);
    color: var(--swift-white);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-danger:hover {
    background: #b71c1c;
}

.btn-validate {
    width: 100%;
    margin-top: 1rem;
    padding: 1rem;
    font-size: 1.1rem;
}

/* =========================================================
   Fact Box
   ========================================================= */
.fact-box {
    margin-top: 1.5rem;
    background: #fdf8e8;
    border-left: 4px solid var(--swift-gold);
    border-radius: 0 8px 8px 0;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.fact-box strong {
    color: var(--swift-blue);
}

/* =========================================================
   Download Link
   ========================================================= */
.download-link {
    color: var(--swift-blue-light);
    text-decoration: none;
    font-weight: 600;
}

.download-link:hover {
    text-decoration: underline;
    color: var(--swift-blue);
}

/* =========================================================
   Overlays
   ========================================================= */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
}

.overlay.hidden {
    display: none;
}

.overlay-content {
    background: var(--swift-white);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

/* =========================================================
   Result Card
   ========================================================= */
.result-card h2 {
    margin-top: 0.5rem;
}

.result-icon-success {
    font-size: 3rem;
}

.result-icon-fail {
    font-size: 3rem;
}

.error-list {
    text-align: left;
    margin: 1rem 0;
    font-size: 0.9rem;
}

.error-item {
    background: #fdecea;
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.4rem;
    color: var(--swift-danger);
}

.name-input {
    width: 100%;
    padding: 0.6rem;
    border: 2px solid #dde2e8;
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.result-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* =========================================================
   PIN Pad (Admin)
   ========================================================= */
.pin-panel {
    max-width: 360px;
    margin: 2rem auto;
    text-align: center;
}

.pin-display {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.pin-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #dde2e8;
    transition: background 0.2s;
}

.pin-dot.filled {
    background: var(--swift-blue);
}

.pin-pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    max-width: 280px;
    margin: 0 auto;
}

.pin-key {
    background: var(--swift-white) !important;
    color: var(--swift-blue) !important;
    border: 2px solid #dde2e8 !important;
    border-radius: 12px;
    padding: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    -webkit-tap-highlight-color: transparent;
}

.pin-key:hover, .pin-key:active {
    background: var(--swift-bg);
    border-color: var(--swift-blue);
}

.pin-key-clear {
    color: var(--swift-danger) !important;
}

.pin-key-submit {
    background: var(--swift-blue) !important;
    color: var(--swift-white) !important;
    border-color: var(--swift-blue) !important;
}

.pin-key-submit:hover {
    background: #002952;
}

.pin-error {
    color: var(--swift-danger);
    font-weight: 600;
    margin-top: 0.75rem;
}

/* =========================================================
   Admin Dashboard
   ========================================================= */
.admin-dashboard {
    max-width: 600px;
    margin: 0 auto;
}

.admin-section {
    background: var(--swift-white);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.admin-section h3 {
    color: var(--swift-blue);
    margin-bottom: 0.5rem;
}

.pin-change-form {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}

.pin-change-form input {
    flex: 1;
    padding: 0.6rem;
    border: 2px solid #dde2e8;
    border-radius: 8px;
    font-size: 1rem;
}

.upload-status {
    margin-top: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

/* =========================================================
   Leaderboard
   ========================================================= */
.leaderboard-screen {
    max-width: 700px;
    margin: 0 auto;
}

.leaderboard-table-wrap {
    background: var(--swift-white);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

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

.leaderboard-table th {
    background: var(--swift-blue);
    color: var(--swift-white);
    padding: 0.75rem;
    text-align: left;
    font-size: 0.9rem;
}

.leaderboard-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid #eee;
    font-size: 0.95rem;
}

.leaderboard-table tr:nth-child(1) td {
    background: #fdf8e8;
    font-weight: 700;
}

.empty-state {
    text-align: center;
    color: var(--swift-slate);
    padding: 2rem;
}

/* =========================================================
   Privacy
   ========================================================= */
.privacy-screen {
    max-width: 700px;
    margin: 0 auto;
}

.privacy-screen article {
    background: var(--swift-white);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* =========================================================
   Setup Screen (DB config fallback)
   ========================================================= */
.setup-screen {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1rem;
}

.setup-card {
    max-width: 480px;
    width: 100%;
    background: var(--swift-white);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.setup-card header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.setup-card header h1 {
    color: var(--swift-blue);
    font-size: 1.4rem;
}

.setup-card label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--swift-blue);
}

.setup-card input {
    width: 100%;
    padding: 0.6rem;
    border: 2px solid #dde2e8;
    border-radius: 8px;
    font-size: 1rem;
    margin-top: 0.3rem;
}

.setup-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.setup-actions button {
    flex: 1;
}

.setup-status {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
}

.status-success {
    background: #e8f8ef;
    color: var(--swift-success);
}

.status-error {
    background: #fdecea;
    color: var(--swift-danger);
}

/* =========================================================
   Dropzone Override
   ========================================================= */
.dropzone {
    border: 2px dashed var(--swift-slate) !important;
    border-radius: 12px !important;
    background: var(--swift-bg) !important;
    min-height: 120px !important;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropzone .dz-message {
    font-size: 1rem;
    color: var(--swift-slate);
}

/* =========================================================
   Welcome Screen
   ========================================================= */
.game-welcome {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.welcome-card {
    background: var(--swift-white);
    border-radius: 16px;
    padding: 2.5rem 3rem;
    max-width: 500px;
    width: 100%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.welcome-card h2 {
    color: var(--swift-blue);
    margin-bottom: 0.5rem;
}

.welcome-card p {
    color: var(--swift-slate);
    margin-bottom: 1.5rem;
}

.welcome-card .name-input {
    margin-bottom: 1.25rem;
    text-align: center;
    font-size: 1.15rem;
}

.btn-start {
    width: 100%;
    padding: 1rem;
    font-size: 1.2rem;
}

/* =========================================================
   Game Header Bar (round + timer + player)
   ========================================================= */
.game-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--swift-white);
    border-radius: 10px;
    padding: 0.6rem 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    font-weight: 600;
}

.round-info {
    color: var(--swift-blue);
    font-size: 1rem;
}

.game-timer {
    font-size: 1.15rem;
    color: var(--swift-blue);
    font-variant-numeric: tabular-nums;
    background: var(--swift-bg);
    padding: 0.3rem 0.9rem;
    border-radius: 8px;
}

.player-info {
    color: var(--swift-slate);
    font-size: 0.95rem;
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* =========================================================
   Address Block (envelope-style display)
   ========================================================= */
.address-block {
    background: #fff;
    border: 2px solid var(--swift-blue);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    line-height: 1.7;
    color: #1a1a2e;
    margin-bottom: 1rem;
    white-space: pre-line;
}

/* =========================================================
   Final Score Screen
   ========================================================= */
.final-score-screen {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.final-score-card {
    background: var(--swift-white);
    border-radius: 16px;
    padding: 2.5rem 3rem;
    max-width: 520px;
    width: 100%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

.final-score-card h1 {
    font-size: 2rem;
    color: var(--swift-blue);
    margin-bottom: 0.5rem;
}

.final-score-value {
    font-size: 4rem;
    font-weight: 800;
    color: var(--swift-blue);
    margin: 0.5rem 0;
    line-height: 1;
}

.final-score-detail {
    color: var(--swift-slate);
    font-size: 1rem;
    margin: 0.25rem 0;
}

.final-score-rounds {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin: 1.25rem 0;
}

.round-badge {
    display: inline-block;
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
}

.round-badge.perfect {
    background: #e8f8ef;
    color: var(--swift-success);
}

.round-badge.partial {
    background: #fdf8e8;
    color: #b8860b;
}

.final-score-card .result-actions {
    margin-top: 1.25rem;
}

/* =========================================================
   Utility
   ========================================================= */
.hidden {
    display: none !important;
}

/* Landscape tablet optimisation */
@media (max-width: 1024px) {
    .game-layout {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .game-layout {
        grid-template-columns: 1fr;
    }
}