:root {
    --bg: #0b0d12;
    --surface: #171a22;
    --surface-2: #1f232e;
    --border: rgba(255, 255, 255, 0.08);
    --text: #f0f1f4;
    --text-muted: #8b93a3;
    --accent: #ffffff;
    --accent-soft: rgba(255, 255, 255, 0.12);
    --accent-border: rgba(255, 255, 255, 0.28);
    --accent-fill: rgba(255, 255, 255, 0.05);
    --accent-fill-strong: rgba(255, 255, 255, 0.11);
    --danger: #f87171;
    --hero-kas: #8fb4d9;
    --hero-kasbon: #d3b285;
    --tx-recent: #a897b0;
}

* {
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    padding-bottom: 78px;
}

a {
    color: var(--accent);
}

.text-muted {
    color: var(--text-muted) !important;
}

/* Top bar */
.app-topbar {
    background: rgba(11, 13, 18, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}

.app-topbar-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.btn-logout {
    color: var(--text-muted);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 5px 12px;
    font-size: 0.85rem;
    text-decoration: none;
}

.btn-logout:active {
    opacity: 0.7;
}

/* Cards */
.card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.card-debt {
    border-left: 3px solid var(--accent-border);
    transition: transform 0.1s ease;
}

.card-debt:active {
    transform: scale(0.985);
}

/* Hero stat cards (Kas / Total Kasbon) */
.card-hero {
    border-radius: 20px;
    border: 1px solid var(--border);
    background: linear-gradient(155deg, var(--surface-2) 0%, var(--surface) 100%);
    position: relative;
    overflow: hidden;
}

.card-hero .hero-value {
    font-size: 1.9rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.card-hero.accent-blue .hero-value {
    color: var(--hero-kas);
}

.card-hero.accent-green .hero-value {
    color: var(--hero-kasbon);
}

.card-debt-recent {
    border-left: 3px solid var(--tx-recent);
}

.card-hero .hero-chevron {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Bottom nav */
.app-bottom-nav {
    background: rgba(17, 20, 27, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    padding: 8px 0 max(8px, env(safe-area-inset-bottom));
}

.bottom-nav-link {
    flex: 1;
    text-align: center;
    padding: 4px 0;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.7rem;
}

.bottom-nav-link .icon {
    display: block;
    margin: 0 auto 3px;
    width: 22px;
    height: 22px;
}

.bottom-nav-link .icon svg {
    width: 100%;
    height: 100%;
    color: inherit;
}

.bottom-nav-link.active {
    color: var(--accent);
    font-weight: 600;
}

.bottom-nav-link.active .icon {
    background: var(--accent-fill-strong);
    border-radius: 10px;
}

.bottom-nav-link.active .icon svg {
    stroke-width: 2.1;
}

/* Auth pages */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 50% 0%, #1a2030 0%, var(--bg) 60%);
    padding: 16px;
}

.auth-card {
    max-width: 380px;
    width: 100%;
}

.pin-input {
    letter-spacing: 10px;
    font-size: 1.5rem;
    text-align: center;
}

.receipt-card {
    position: relative;
    background: var(--surface-2);
    border-radius: 18px;
    border: 1px solid var(--border);
    padding: 20px 18px 16px;
    margin-top: 10px;
    margin-bottom: 1.15rem;
}

.receipt-card::before {
    content: "";
    position: absolute;
    top: -9px;
    left: 0;
    right: 0;
    height: 10px;
    background-image: radial-gradient(circle at 10px 5px, var(--bg) 9px, transparent 9.5px);
    background-size: 20px 10px;
    background-repeat: repeat-x;
}

pre.laporan-text {
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    color: var(--text);
    font-family: 'SFMono-Regular', Consolas, 'Courier New', monospace;
    font-size: 0.88rem;
    line-height: 1.55;
}

.suggestion-list {
    display: none;
    margin-top: 8px;
    background-color: rgba(31, 35, 46, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1.5px solid var(--accent-border);
    border-radius: 14px;
    overflow: hidden;
}

.suggestion-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.65rem 1rem;
    cursor: pointer;
    color: var(--text);
    font-weight: 500;
    transition: background-color 0.1s ease;
}

.suggestion-item:not(:last-child) {
    border-bottom: 1px solid var(--border);
}

.suggestion-item:active {
    background-color: var(--accent-fill-strong);
}

.suggestion-avatar {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border-radius: 50%;
    background: var(--accent-fill-strong);
    border: 1px solid var(--accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text);
}

/* Forms */
.form-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 700;
    margin-bottom: 8px;
}

.form-control, .form-select {
    background-color: var(--surface-2);
    border: 1.5px solid var(--border);
    border-radius: 14px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    color: var(--text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.form-control:focus, .form-select:focus {
    background-color: var(--surface-2);
    color: var(--text);
    border-color: var(--accent-border);
    box-shadow: 0 0 0 4px var(--accent-soft);
}

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

.mb-3 {
    margin-bottom: 1.15rem !important;
}

/* Buttons */
.btn {
    border-radius: 14px;
    padding: 0.7rem 1.1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: transform 0.08s ease, opacity 0.15s ease, background-color 0.15s ease;
}

.btn:active {
    transform: scale(0.97);
}

.btn-sm {
    border-radius: 11px;
    padding: 0.45rem 0.8rem;
}

.btn-primary {
    background-color: var(--accent-fill-strong);
    border: 1.5px solid var(--accent);
    color: var(--text);
    box-shadow: 0 6px 16px -6px rgba(0, 0, 0, 0.4);
}

.btn-primary:hover, .btn-primary:active, .btn-primary:focus {
    background-color: rgba(255, 255, 255, 0.18);
    border-color: var(--accent);
    color: var(--text);
}

.btn-outline-secondary {
    color: var(--text);
    border: 1.5px solid var(--accent-border);
    background-color: var(--accent-fill);
}

.btn-outline-secondary:hover, .btn-outline-secondary:active, .btn-outline-secondary:focus {
    background-color: var(--accent-fill-strong);
    border-color: var(--accent-border);
    color: var(--text);
}

.btn-outline-danger {
    color: var(--danger);
    border-color: rgba(248, 113, 113, 0.35);
    background-color: transparent;
}

.btn-outline-danger:hover, .btn-outline-danger:active {
    background-color: rgba(248, 113, 113, 0.12);
    border-color: rgba(248, 113, 113, 0.5);
    color: var(--danger);
}

.input-group .btn {
    box-shadow: none;
}