/* ═══════════════════════════════════════════════════════
   Acqua Blog Service — Premium Dark Mode CSS
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap');

/* ── Reset & Variables ── */
:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a1f35;
    --bg-card-hover: #222845;
    --bg-input: #0f1525;
    --bg-glass: rgba(26, 31, 53, 0.85);
    --border: rgba(99, 113, 150, 0.2);
    --border-focus: #6366f1;
    --text-primary: #e8ecf4;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --error: #ef4444;
    --error-bg: rgba(239, 68, 68, 0.12);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.12);
    --gold: #d4a843;
    --gold-bg: rgba(212, 168, 67, 0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ── Background Effect ── */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 20% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 100%, rgba(16, 185, 129, 0.05) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

/* ── Layout ── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ── Header / Navbar ── */
.navbar {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.navbar-brand .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent), #a855f7);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.navbar-links a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.navbar-links a.active {
    color: var(--accent);
    background: var(--accent-glow);
}

/* ── Page Header ── */
.page-header {
    padding: 48px 0 32px;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ── Cards ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(99, 113, 150, 0.35);
    box-shadow: var(--shadow);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 20px;
    padding-bottom: 48px;
}

.client-card {
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.client-card .card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.client-card .company-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.client-card .contact-name {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 2px;
}

.client-card .card-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.meta-item .value {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.badge-active { background: var(--success-bg); color: var(--success); }
.badge-pending { background: var(--warning-bg); color: var(--warning); }
.badge-paused { background: var(--info-bg); color: var(--info); }
.badge-cancelled { background: var(--error-bg); color: var(--error); }
.badge-acqua { background: var(--gold-bg); color: var(--gold); border: 1px solid rgba(212, 168, 67, 0.3); }

.badge-plan {
    background: rgba(99, 102, 241, 0.12);
    color: var(--accent-hover);
}

/* ── Forms ── */
.form-section {
    margin-bottom: 40px;
}

.form-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.form-section-header .section-number {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent), #a855f7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.form-section-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.form-section-header p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 2px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-group .hint {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.radio-group, .checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.radio-option, .checkbox-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.radio-option:hover, .checkbox-option:hover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.05);
}

.radio-option input, .checkbox-option input {
    accent-color: var(--accent);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
}

.btn-danger {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

/* ── Detail Page ── */
.detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 32px 0 24px;
}

.detail-header .left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.detail-header .company-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent), #a855f7);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
}

.detail-header h1 {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.detail-header .badges {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-hover);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-card.editable {
    cursor: pointer;
    position: relative;
}

.stat-card.editable:hover {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.stat-card.editable .edit-hint {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0;
    transition: var(--transition);
}

.stat-card.editable:hover .edit-hint {
    opacity: 1;
}

.section-tabs {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    padding-bottom: 4px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.section-tab {
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.section-tab:hover {
    color: var(--text-secondary);
}

.section-tab.active {
    color: var(--accent-hover);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ── Login Page ── */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.login-card .subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 32px;
}

/* ── Form Complete ── */
.complete-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.complete-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 64px 48px;
    width: 100%;
    max-width: 560px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.complete-icon {
    width: 80px;
    height: 80px;
    background: var(--success-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 24px;
    border: 2px solid rgba(16, 185, 129, 0.3);
}

.complete-card h1 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.complete-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

/* ── Flash Messages ── */
.flash {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.flash-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.2); }
.flash-error { background: var(--error-bg); color: var(--error); border: 1px solid rgba(239, 68, 68, 0.2); }

/* ── Hearing Form Hero ── */
.form-hero {
    text-align: center;
    padding: 56px 0 32px;
}

.form-hero .hero-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent), #a855f7);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 20px;
}

.form-hero h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.form-hero p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 560px;
    margin: 0 auto;
}

/* ── Info Box ── */
.info-box {
    background: var(--info-bg);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin-bottom: 24px;
    font-size: 0.85rem;
    color: var(--info);
    line-height: 1.6;
}

.warning-box {
    background: var(--warning-bg);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin-bottom: 24px;
    font-size: 0.85rem;
    color: var(--warning);
}

/* ── Post Count Editor ── */
.post-count-editor {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
}

.post-count-editor button {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.post-count-editor button:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.post-count-editor .count-display {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-hover);
    min-width: 48px;
    text-align: center;
}

/* ── Status Selector ── */
.status-selector {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.status-btn {
    padding: 8px 16px;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.status-btn:hover { border-color: var(--text-secondary); color: var(--text-secondary); }
.status-btn.active-status { background: var(--success-bg); color: var(--success); border-color: var(--success); }
.status-btn.pending-status { background: var(--warning-bg); color: var(--warning); border-color: var(--warning); }
.status-btn.paused-status { background: var(--info-bg); color: var(--info); border-color: var(--info); }
.status-btn.cancelled-status { background: var(--error-bg); color: var(--error); border-color: var(--error); }

/* ── Back link ── */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 8px 0;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--accent-hover);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .container, .container-narrow {
        padding: 0 16px;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .detail-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .page-header h1, .form-hero h1 {
        font-size: 1.5rem;
    }
    .section-tabs {
        gap: 0;
    }
    .section-tab {
        padding: 10px 14px;
        font-size: 0.78rem;
    }
}