/* SolarAnalytics - Dark Theme Design System */

/* ========== CSS Custom Properties ========== */
:root {
    /* Backgrounds */
    --bg-primary: #0d1117;
    --bg-card: #161b22;
    --bg-input: #0d1117;
    --border: #30363d;

    /* Text */
    --text-primary: #e6edf3;
    --text-muted: #8b949e;

    /* Accents */
    --accent-solar: #f0b429;
    --accent-green: #2dd4bf;
    --accent-red: #f87171;
    --accent-blue: #60a5fa;
    --accent-orange: #fb923c;
    --accent-purple: #a78bfa;

    /* Spacing */
    --gap: 20px;
    --radius: 8px;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
}

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

html {
    font-size: 18px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ========== Navigation ========== */
.top-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0 28px;
    height: 56px;
}

.nav-left,
.nav-right {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-brand {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--accent-solar);
    margin-right: 20px;
    text-decoration: none;
}

.nav-brand:hover {
    text-decoration: none;
    opacity: 0.9;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    text-decoration: none;
}

.nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.nav-highlight {
    color: var(--accent-solar) !important;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.nav-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    margin-right: 8px;
}

.nav-user {
    font-size: 0.93rem;
    color: var(--text-muted);
    margin-right: 6px;
}

/* ========== Content Area ========== */
.content {
    max-width: 1920px;
    margin: 0 auto;
    padding: 28px 40px;
}

/* ========== Cards ========== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.card-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-body {
    padding: 20px;
}

/* ========== Dashboard Header ========== */
.dashboard-header {
    margin-bottom: 24px;
}

.dashboard-header-top {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 12px;
}

.dashboard-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.dashboard-updated {
    font-size: 1rem;
    color: var(--text-muted);
}

/* ========== Date Range Control ========== */
.date-range-control {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 16px;
}

.date-range-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.date-nav-today {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.15s, background 0.15s;
}

.date-nav-today:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    text-decoration: none;
}

.date-nav-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.15s, background 0.15s;
}

.date-nav-arrow:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    text-decoration: none;
}

.date-range-label {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 200px;
    text-align: center;
}

.date-range-buttons {
    display: flex;
    gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px;
}

.date-range-btn {
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
}

.date-range-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    text-decoration: none;
}

.date-range-btn.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.date-range-btn.disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: auto;
}

/* ========== Dashboard Grid ========== */
.dashboard-grid {
    display: flex;
    gap: 20px;
    align-items: stretch;
}

/* ========== Stats Grid (2x2) ========== */
.stats-grid {
    width: 520px;
    min-width: 520px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 14px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.65rem;
    font-weight: 600;
    line-height: 1.2;
}

.stat-change {
    font-size: 0.85rem;
    margin-top: 8px;
}

.stat-change-positive {
    color: var(--accent-green);
}

.stat-change-negative {
    color: var(--accent-red);
}

.stat-change-yoy {
    font-size: 0.75rem;
    margin-top: 2px;
    opacity: 0.85;
}

.stat-production {
    color: var(--accent-solar);
}

.stat-consumption {
    color: var(--text-primary);
}

.stat-self-consumption {
    color: var(--accent-blue);
}

.stat-positive {
    color: var(--accent-green);
}

.stat-negative {
    color: var(--accent-red);
}

/* ========== Chart Container ========== */
.chart-container {
    flex: 1;
    min-width: 400px;
    display: flex;
    flex-direction: column;
}

.chart-container .card-body {
    padding: 20px;
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.chart-container canvas {
    width: 100% !important;
    flex: 1;
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: 80px 20px;
}

.empty-state h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.empty-state .text-muted {
    margin-bottom: 28px;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: var(--font-sans);
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
    background: var(--bg-card);
    color: var(--text-primary);
}

.btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: #484f58;
    text-decoration: none;
}

.btn-primary {
    background: #238636;
    border-color: rgba(35, 134, 54, 0.4);
    color: #fff;
}

.btn-primary:hover {
    background: #2ea043;
    border-color: rgba(46, 160, 67, 0.4);
}

.btn-primary:disabled {
    background: #21262d;
    border-color: var(--border);
    color: var(--text-muted);
    cursor: not-allowed;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1.1rem;
}

/* ========== Forms ========== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="email"],
.form-group select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-sans);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.15);
}

.form-help {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ========== Secret Field ========== */
.secret-field-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.secret-field-wrapper input {
    flex: 1;
    min-width: 0;
}

.secret-toggle-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.secret-toggle-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card);
    border-color: var(--text-muted);
}

.secret-toggle-btn:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.secret-toggle-btn .eye-icon {
    display: block;
}

/* ========== Configuration Page ========== */
.page-header {
    margin-bottom: 24px;
}

.page-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
}

.page-header .text-muted {
    font-size: 1rem;
    margin-top: 4px;
}

.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap);
    align-items: start;
}

.backfill-status {
    margin-bottom: 20px;
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
}

.status-row:last-child {
    border-bottom: none;
}

.status-label {
    color: var(--text-muted);
}

.status-value {
    color: var(--text-primary);
    font-weight: 500;
}

.status-idle {
    color: var(--text-muted);
}

.status-running {
    color: var(--accent-blue);
}

.status-completed {
    color: var(--accent-green);
}

.status-failed {
    color: var(--accent-red);
}

.status-stalled {
    color: var(--accent-orange);
}

.monospace {
    font-family: var(--font-mono);
}

/* ========== Flash Messages ========== */
.flash-message {
    padding: 12px 18px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 1rem;
    border: 1px solid;
}

.flash-success {
    color: var(--accent-green);
    border-color: rgba(45, 212, 191, 0.3);
    background: rgba(45, 212, 191, 0.08);
}

.flash-warning {
    color: var(--accent-orange);
    border-color: rgba(251, 146, 60, 0.3);
    background: rgba(251, 146, 60, 0.08);
}

.flash-error {
    color: var(--accent-red);
    border-color: rgba(248, 113, 113, 0.3);
    background: rgba(248, 113, 113, 0.08);
}

/* ========== Spinner ========== */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--text-muted);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== Login Page ========== */
.login-container {
    max-width: 440px;
    margin: 80px auto;
    text-align: center;
}

.login-container h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.login-container .text-muted {
    margin-bottom: 32px;
}

.login-error {
    color: var(--accent-red);
    margin-bottom: 16px;
    font-size: 1rem;
}

.btn-google {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: #fff;
    color: #333;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1.05rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s;
}

.btn-google:hover {
    background: #f5f5f5;
    text-decoration: none;
}

/* ========== Utility ========== */
.text-muted {
    color: var(--text-muted);
}

/* ========== Responsive ========== */
/* ========== Lifetime Stats Footer ========== */
.lifetime-stats {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.lifetime-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}

.lifetime-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.lifetime-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.lifetime-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.lifetime-value {
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
    font-size: 1.65rem;
    font-weight: 600;
    color: var(--text-primary);
}

.lifetime-subtext {
    display: block;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ========== Tenant Switcher ========== */
.tenant-switcher {
    position: relative;
    margin-right: 12px;
}

.tenant-switcher-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s;
    white-space: nowrap;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tenant-switcher-btn:hover {
    border-color: #484f58;
}

.tenant-switcher-btn svg {
    flex-shrink: 0;
}

.tenant-switcher-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    min-width: 200px;
    z-index: 100;
    overflow: hidden;
}

.tenant-switcher-menu.open {
    display: block;
}

.tenant-switcher-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 14px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--text-primary);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s;
}

.tenant-switcher-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.tenant-switcher-item.active {
    color: var(--accent-green);
    cursor: default;
}

.tenant-switcher-check {
    color: var(--accent-green);
    font-size: 0.9rem;
}

/* ========== Members Page ========== */
.members-layout {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
    max-width: 700px;
}

.invite-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.invite-row {
    display: flex;
    gap: 10px;
    align-items: center;
}

.invite-email-input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
}

.invite-email-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.member-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.member-row:last-child {
    border-bottom: none;
}

.member-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.member-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.member-avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--border);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
}

.member-details {
    display: flex;
    flex-direction: column;
}

.member-name {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.member-email {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.member-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.member-you {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.role-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-badge-owner {
    background: rgba(240, 180, 41, 0.15);
    color: var(--accent-solar);
}

.role-badge-viewer {
    background: rgba(96, 165, 250, 0.15);
    color: var(--accent-blue);
}

.inline-form {
    display: inline;
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.8rem;
}

.btn-danger {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.3);
    color: var(--accent-red);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.2);
    border-color: rgba(248, 113, 113, 0.5);
}

/* ========== Responsive ========== */

@media (max-width: 900px) {
    .dashboard-grid {
        flex-direction: column;
    }

    .stats-grid {
        width: 100%;
        min-width: 0;
    }

    .chart-container {
        min-width: 0;
    }

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

    .date-range-control {
        flex-direction: column;
        align-items: flex-start;
    }

    .lifetime-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .dashboard-header-top {
        flex-direction: column;
        gap: 6px;
    }

    .date-range-label {
        min-width: auto;
        font-size: 1rem;
    }

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

    .top-nav {
        padding: 0 14px;
    }

    .content {
        padding: 16px;
    }

    .lifetime-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .env-benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* Environmental Benefits Styles */
.env-benefits {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.env-benefits-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin: 0 0 16px 0;
}

.env-benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.env-benefits-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.env-benefits-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.env-benefits-value {
    font-size: 1.65rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--accent-green);
}

.env-benefits-unit {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-muted);
}

.env-benefits-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
}

@media (max-width: 900px) {
    .env-benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .env-benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* Equipment Page Styles */
.equipment-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.equipment-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin: 0 0 4px 0;
}

.equipment-subtitle {
    font-size: 0.95rem;
    margin: 0;
}

.equipment-actions {
    display: flex;
    gap: 12px;
}

.equipment-updated {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.equipment-empty-state {
    text-align: center;
    padding: 40px 20px;
}

.equipment-section {
    margin-bottom: 32px;
}

.equipment-section-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--accent-solar);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 16px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.equipment-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}

.equipment-card-header {
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.equipment-type-badge {
    display: inline-block;
    background: rgba(240, 180, 41, 0.15);
    color: var(--accent-solar);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 3px 8px;
    border-radius: 3px;
    margin-bottom: 8px;
}

.equipment-name {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.equipment-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.equipment-field {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    font-size: 0.9rem;
}

.equipment-label {
    color: var(--text-muted);
    font-weight: 500;
    flex-shrink: 0;
    margin-right: 12px;
}

.equipment-value {
    color: var(--text-primary);
    font-family: var(--font-mono);
    text-align: right;
    word-break: break-all;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-solar);
}

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

.btn-primary {
    background: var(--accent-solar);
    color: #0d1117;
    border-color: var(--accent-solar);
}

.btn-primary:hover:not(:disabled) {
    background: #d89e1e;
    border-color: #d89e1e;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1.05rem;
}

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 900px) {
    .equipment-header {
        flex-direction: column;
        gap: 16px;
    }

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