/* ========================================
   FinanceBoard - CSS
   ======================================== */

/* --- CSS Variables --- */
:root {
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
    --transition-speed: 0.3s;
    --card-radius: 12px;
    --positive: #26a641;
    --positive-bg: rgba(38, 166, 65, 0.1);
    --negative: #f85149;
    --negative-bg: rgba(248, 81, 73, 0.1);
    --neutral: #8b949e;
}

/* Dark theme (default) */
[data-theme="dark"] {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #161b22;
    --bg-card-hover: #1c2129;
    --bg-header: rgba(13, 17, 23, 0.85);
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #484f58;
    --btn-bg: #238636;
    --btn-bg-hover: #2ea043;
    --btn-text: #ffffff;
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.4);
    --skeleton-base: #21262d;
    --skeleton-shine: #30363d;
    --install-bg: #1c2129;
}

/* Light theme */
[data-theme="light"] {
    --bg-primary: #f6f8fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f3f4f6;
    --bg-header: rgba(246, 248, 250, 0.85);
    --border-color: #d0d7de;
    --text-primary: #1f2328;
    --text-secondary: #656d76;
    --text-muted: #8b949e;
    --btn-bg: #2da44e;
    --btn-bg-hover: #218838;
    --btn-text: #ffffff;
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
    --skeleton-base: #e1e4e8;
    --skeleton-shine: #f0f0f0;
    --install-bg: #ffffff;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overscroll-behavior-y: contain;
    -webkit-font-smoothing: antialiased;
}

/* --- Install Banner --- */
.install-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--install-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 16px;
    transform: translateY(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.install-banner.hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

.install-banner-content {
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 800px;
    margin: 0 auto;
    font-size: 13px;
}

.install-banner-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.install-banner-text {
    flex: 1;
    color: var(--text-secondary);
}

.install-btn {
    flex-shrink: 0;
    padding: 6px 14px;
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.install-btn:hover {
    background: var(--btn-bg-hover);
}

.install-dismiss {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 22px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color 0.2s;
}

.install-dismiss:hover {
    color: var(--text-primary);
}

/* --- Pull to Refresh --- */
.pull-indicator {
    position: fixed;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-secondary);
    z-index: 100;
    transition: top 0.3s;
    box-shadow: var(--shadow-card);
}

.pull-indicator.visible {
    top: 12px;
}

.pull-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--btn-bg);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* --- Header --- */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg-header);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
    transition: background var(--transition-speed);
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-icon {
    border-radius: 6px;
}

.header-actions {
    display: flex;
    gap: 8px;
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.icon-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

/* Theme toggle icon visibility */
[data-theme="dark"] .theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: block; }
[data-theme="light"] .theme-icon-light { display: none; }
[data-theme="light"] .theme-icon-dark { display: block; }

.header-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 12px;
}

.last-updated {
    color: var(--text-muted);
}

.auto-refresh-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
}

.auto-refresh-label {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    user-select: none;
}

.auto-refresh-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--btn-bg);
    cursor: pointer;
}

.auto-refresh-select {
    padding: 2px 4px;
    font-size: 11px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.auto-refresh-select:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* --- Main Content --- */
.main {
    padding: 16px;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- Card Grid --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

@media (min-width: 600px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }
}

@media (min-width: 900px) {
    .card-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

/* --- Indicator Card --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 16px;
    transition: all 0.2s ease;
    animation: cardEntrance 0.4s ease-out backwards;
    position: relative;
    overflow: hidden;
}

.card:nth-child(1) { animation-delay: 0.02s; }
.card:nth-child(2) { animation-delay: 0.06s; }
.card:nth-child(3) { animation-delay: 0.10s; }
.card:nth-child(4) { animation-delay: 0.14s; }
.card:nth-child(5) { animation-delay: 0.18s; }
.card:nth-child(6) { animation-delay: 0.22s; }
.card:nth-child(7) { animation-delay: 0.26s; }

.card:hover {
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-1px);
}

.card-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-value {
    font-size: 22px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 4px;
    letter-spacing: -0.02em;
    transition: color 0.3s;
}

@media (min-width: 600px) {
    .card-value {
        font-size: 26px;
    }
}

.card-unit {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.card-change {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font-mono);
}

.card-change.positive {
    color: var(--positive);
}

.card-change.negative {
    color: var(--negative);
}

.card-change.neutral {
    color: var(--neutral);
}

.change-arrow {
    font-size: 11px;
}

.change-percent {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.positive .change-percent {
    background: var(--positive-bg);
}

.negative .change-percent {
    background: var(--negative-bg);
}

/* Value update pulse */
.card-value.pulse {
    animation: valuePulse 0.5s ease;
}

@keyframes valuePulse {
    0% { opacity: 1; }
    30% { opacity: 0.5; transform: scale(0.98); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Loading Skeleton --- */
.skeleton-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 16px;
    animation: cardEntrance 0.3s ease-out backwards;
}

.skeleton-line {
    background: var(--skeleton-base);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.skeleton-line::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--skeleton-shine), transparent);
    animation: skeletonShine 1.5s infinite;
}

.skeleton-name {
    width: 60%;
    height: 14px;
    margin-bottom: 12px;
}

.skeleton-value {
    width: 80%;
    height: 28px;
    margin-bottom: 8px;
}

.skeleton-unit {
    width: 40%;
    height: 12px;
    margin-bottom: 12px;
}

.skeleton-change {
    width: 55%;
    height: 16px;
}

@keyframes skeletonShine {
    to {
        left: 100%;
    }
}

/* --- Error Message --- */
.error-message {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--negative-bg);
    border: 1px solid rgba(248, 81, 73, 0.3);
    border-radius: 10px;
    color: var(--negative);
    font-size: 14px;
    margin-top: 16px;
    transition: opacity 0.3s;
}

.error-message.hidden {
    display: none;
}

/* --- Footer --- */
.footer {
    padding: 16px;
    padding-bottom: max(16px, env(safe-area-inset-bottom));
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.update-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 360px;
    padding: 14px 24px;
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
    font-family: var(--font-main);
}

.update-btn:hover:not(:disabled) {
    background: var(--btn-bg-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(35, 134, 54, 0.3);
}

.update-btn:active:not(:disabled) {
    transform: translateY(0);
}

.update-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.update-btn.loading .update-icon {
    animation: spin 0.8s linear infinite;
}

.update-cooldown {
    font-size: 12px;
    opacity: 0.8;
}

.footer-hint {
    margin-top: 10px;
    font-size: 11px;
    color: var(--text-muted);
}

.footer-hint kbd {
    display: inline-block;
    padding: 1px 6px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.6;
}

/* --- Animations --- */
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* --- Scrollbar (dark theme) --- */
[data-theme="dark"] ::-webkit-scrollbar {
    width: 6px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: transparent;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: #30363d;
    border-radius: 3px;
}

/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* --- Standalone (installed PWA) --- */
@media (display-mode: standalone) {
    .install-banner {
        display: none !important;
    }
    .header {
        padding-top: max(12px, env(safe-area-inset-top));
    }
}