/* =========================================================
   Mini Loan Payment App — Design System
   Font: Outfit (400/500/600/700) — loaded via Google Fonts link
   in header.php. Do not introduce a second font family anywhere.
   ========================================================= */

:root {
    --color-primary: #173B67;
    --color-primary-dark: #0F2A4A;
    --color-primary-light: #EAF2FA;

    --color-success: #15803D;
    --color-success-light: #ECFDF3;

    --color-warning: #B45309;
    --color-warning-light: #FFF7ED;

    --color-danger: #B91C1C;
    --color-danger-light: #FEF2F2;

    --color-text: #172033;
    --color-text-secondary: #64748B;
    --color-border: #E2E8F0;
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;

    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;

    --shadow-sm: 0 1px 2px rgba(15, 42, 74, 0.06);
    --shadow-md: 0 4px 12px rgba(15, 42, 74, 0.08);

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-8: 48px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-family);
    font-weight: 400;
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-family); margin: 0 0 var(--space-2); color: var(--color-text); }
h1 { font-size: 24px; font-weight: 700; }         /* Page title */
h2 { font-size: 18px; font-weight: 600; }         /* Section title */
h3 { font-size: 16px; font-weight: 600; }         /* Card title */
p  { margin: 0 0 var(--space-3); }
a  { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
label { font-weight: 500; font-size: 13px; color: var(--color-text); display: block; margin-bottom: var(--space-1); }

.text-secondary { color: var(--color-text-secondary); }
.text-sm { font-size: 13px; }

/* -------------------- Layout helpers -------------------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-5); }
.stack { display: flex; flex-direction: column; gap: var(--space-4); }
.row { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.grid { display: grid; gap: var(--space-4); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }

/* -------------------- Cards -------------------- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}
.card-title { font-size: 16px; font-weight: 600; margin-bottom: var(--space-1); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-4); }

/* Stat/dashboard cards */
.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    box-shadow: var(--shadow-sm);
}
.stat-card .stat-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius-md);
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: var(--space-2);
}
.stat-card .stat-icon svg { width: 20px; height: 20px; }
.stat-card .stat-label { font-size: 13px; color: var(--color-text-secondary); font-weight: 500; }
.stat-card .stat-value { font-size: 26px; font-weight: 700; }
.stat-card .stat-sub { font-size: 12px; color: var(--color-text-secondary); }

/* -------------------- Buttons -------------------- */
.btn {
    font-family: var(--font-family);
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--radius-sm);
    padding: 10px 18px;
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    line-height: 1;
    transition: background-color .15s ease, border-color .15s ease, opacity .15s ease;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-outline { background: #fff; color: var(--color-primary); border-color: var(--color-border); }
.btn-outline:hover { background: var(--color-primary-light); text-decoration: none; }
.btn-success { background: var(--color-success); color: #fff; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--color-text-secondary); }
.btn-ghost:hover { background: var(--color-bg); text-decoration: none; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-icon { padding: 8px; }
.btn.is-loading { pointer-events: none; opacity: .75; }

/* -------------------- Forms -------------------- */
.form-group { margin-bottom: var(--space-4); }
.form-control {
    width: 100%;
    font-family: var(--font-family);
    font-size: 14px;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--color-text);
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.form-control:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); }
.form-hint { font-size: 12px; color: var(--color-text-secondary); margin-top: 4px; }
.form-error { font-size: 12px; color: var(--color-danger); margin-top: 4px; }
.input-group { position: relative; display: flex; align-items: center; }
.input-group .form-control { padding-right: 42px; }
.input-group .input-suffix-btn {
    position: absolute; right: 8px; background: none; border: none; cursor: pointer;
    color: var(--color-text-secondary); display: flex; padding: 4px;
}

/* -------------------- Badges (status) -------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 999px;
}
.badge svg { width: 13px; height: 13px; }
.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger  { background: var(--color-danger-light); color: var(--color-danger); }
.badge-muted   { background: var(--color-bg); color: var(--color-text-secondary); border: 1px solid var(--color-border); }
.badge-active  { background: var(--color-success-light); color: var(--color-success); }

/* -------------------- Tables -------------------- */
table.data-table { width: 100%; border-collapse: collapse; }
table.data-table th {
    text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em;
    color: var(--color-text-secondary); font-weight: 600; padding: 12px 16px; border-bottom: 1px solid var(--color-border);
}
table.data-table td { padding: 14px 16px; border-bottom: 1px solid var(--color-border); font-size: 14px; }
table.data-table tbody tr:hover { background: var(--color-bg); }

/* -------------------- Progress bar (loan repayment) -------------------- */
.progress { background: var(--color-border); border-radius: 999px; height: 8px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--color-success); border-radius: 999px; transition: width .3s ease; }

/* -------------------- Empty states -------------------- */
.empty-state { text-align: center; padding: var(--space-8) var(--space-4); color: var(--color-text-secondary); }
.empty-state svg { width: 40px; height: 40px; color: var(--color-text-secondary); margin-bottom: var(--space-3); }
.empty-state h3 { color: var(--color-text); margin-bottom: var(--space-1); }

/* -------------------- Toasts -------------------- */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 1000; display: flex; flex-direction: column; gap: 10px; }
.toast {
    background: #fff; border: 1px solid var(--color-border); border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md); padding: 14px 16px; box-shadow: var(--shadow-md);
    display: flex; align-items: flex-start; gap: 10px; min-width: 280px; max-width: 360px;
    font-size: 13px; animation: toast-in .2s ease;
}
.toast-success { border-left-color: var(--color-success); }
.toast-danger { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

/* -------------------- Modals -------------------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15,32,51,0.5); display: none; align-items: center; justify-content: center; z-index: 900; padding: 20px; }
.modal-backdrop.is-open { display: flex; }
.modal { background: #fff; border-radius: var(--radius-lg); padding: var(--space-5); max-width: 440px; width: 100%; box-shadow: var(--shadow-md); }
.modal-title { font-size: 17px; font-weight: 600; margin-bottom: var(--space-2); }
.modal [data-modal-body] { white-space: pre-line; color: var(--color-text-secondary); font-size: 14px; line-height: 1.6; }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-5); }

/* -------------------- Flash messages -------------------- */
.alert { border-radius: var(--radius-md); padding: 12px 16px; font-size: 14px; margin-bottom: var(--space-4); display: flex; gap: 10px; align-items: flex-start; }
.alert-success { background: var(--color-success-light); color: var(--color-success); }
.alert-danger { background: var(--color-danger-light); color: var(--color-danger); }
.alert-warning { background: var(--color-warning-light); color: var(--color-warning); }
.alert svg { width: 18px; height: 18px; flex-shrink: 0; }

/* -------------------- Tabs -------------------- */
.tabs-nav { display: flex; gap: 4px; border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-4); overflow-x: auto; }
.tabs-nav button {
    background: none; border: none; padding: 10px 16px; font-family: var(--font-family);
    font-size: 14px; font-weight: 500; color: var(--color-text-secondary); cursor: pointer;
    border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap;
    display: inline-flex; align-items: center; gap: 6px;
}
.tabs-nav button svg { width: 15px; height: 15px; }
.tabs-nav button.is-active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tabs-nav button:hover { color: var(--color-text); }

/* -------------------- Detail page profile header -------------------- */
.profile-header { display: flex; align-items: center; gap: var(--space-4); margin-bottom: var(--space-5); flex-wrap: wrap; }
.profile-avatar {
    width: 56px; height: 56px; border-radius: 50%; background: var(--color-primary-light); color: var(--color-primary);
    display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 20px; flex-shrink: 0;
    overflow: hidden;
}
.profile-avatar img { width: 100%; height: 100%; object-fit: cover; }
.profile-meta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: var(--space-4); margin-top: var(--space-4); }
.profile-meta-label { font-size: 12px; color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: .03em; margin-bottom: 2px; }
.profile-meta-value { font-size: 14px; font-weight: 500; }

/* -------------------- Sticky mobile action bar (payment page etc.) -------------------- */
.sticky-action-bar {
    position: fixed; left: 0; right: 0; bottom: 0;
    background: #fff; border-top: 1px solid var(--color-border);
    padding: 14px 20px; z-index: 150;
}
/* Sit above the customer bottom-nav (which is z-index:500 and pinned
   to the true bottom) rather than being hidden underneath it. */
body.has-bottom-nav .sticky-action-bar { bottom: 62px; }

/* -------------------- Utility -------------------- */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.mt-0{margin-top:0}.mb-0{margin-bottom:0}