/* ==========================================================
   Bhati ERP - Customer Portal Styles
   Navbar, hero, stat cards, panels, login — with animations.
   ========================================================== */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --indigo: #7c3aed;
    --cyan: #0ea5e9;
    --success: #16a34a;
    --danger: #dc2626;
    --warn: #d97706;
    --bg: #f1f5f9;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text: #0f172a;
    --text-muted: #64748b;
    --radius: 14px;
    --nav-h: 62px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

body.nav-open { overflow: hidden; }

/* ==========================================================
   Shared
   ========================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 11px 18px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: background .18s, color .18s, transform .18s, box-shadow .18s;
}

.btn:hover { transform: translateY(-1px); }

.btn-block { width: 100%; }

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--indigo));
    color: #fff;
    box-shadow: 0 8px 18px -8px rgba(37, 99, 235, .55);
}

.btn-primary:hover { box-shadow: 0 12px 24px -8px rgba(37, 99, 235, .6); }

.btn-outline { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }

.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: 8px; }

.alert {
    padding: 11px 14px;
    border-radius: 10px;
    font-size: 13.5px;
    margin-bottom: 18px;
}

.alert-danger {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.field { margin-bottom: 16px; }

.field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.field .input-wrap { position: relative; }

.field .input-wrap .inp-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    display: flex;
    pointer-events: none;
}

.field input {
    width: 100%;
    padding: 12px 12px 12px 40px;
    font-size: 15px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #f8fafc;
    outline: none;
    transition: border-color .18s, box-shadow .18s, background .18s;
}

.field input:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

.portal-hint { display: block; margin-top: 6px; font-size: 12px; color: var(--text-muted); }

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

/* ==========================================================
   Navbar
   ========================================================== */

.portal-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: var(--nav-h);
    padding: 10px 20px;
    background: rgba(255, 255, 255, .82);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }

.nav-brand img {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: contain;
    background: #fff;
    padding: 3px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px -4px rgba(15, 23, 42, .2);
}

.nav-brand strong { font-size: 15px; line-height: 1.2; }
.nav-brand small { display: block; color: var(--text-muted); font-size: 11px; }

.nav-links { display: flex; gap: 4px; flex: 1; align-items: center; }

.nav-links a {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 13px;
    border-radius: 9px;
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    font-size: 13.5px;
    white-space: nowrap;
    transition: background .15s, color .15s;
}

.nav-links a:hover { background: rgba(37, 99, 235, .08); color: var(--primary); }

.nav-user { display: flex; align-items: center; gap: 10px; }

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--indigo));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
    box-shadow: 0 4px 12px -4px rgba(37, 99, 235, .6);
}

.nav-user .who strong { display: block; font-size: 13px; line-height: 1.2; }
.nav-user .who small { display: block; color: var(--text-muted); font-size: 11px; }

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 9px;
    padding: 8px;
    cursor: pointer;
    color: var(--text);
    align-items: center;
    justify-content: center;
}

/* ==========================================================
   Container & sections
   ========================================================== */

.portal-container { max-width: 1020px; margin: 22px auto 40px; padding: 0 16px; }

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(15, 23, 42, .05);
}

section[id], .panel[id] { scroll-margin-top: calc(var(--nav-h) + 14px); }

.panel h2 { font-size: 16.5px; margin: 0 0 14px; display: flex; align-items: center; gap: 8px; }

.panel h2 .sec-icon {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, .1);
    color: var(--primary);
}

.panel-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.panel-head h2 { margin: 0; }

.panel-foot { padding-top: 12px; font-size: 13px; border-top: 1px dashed var(--border); margin-top: 8px; }

/* ==========================================================
   Hero banner
   ========================================================== */

.hero {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    padding: 30px 30px 32px;
    color: #fff;
    background: linear-gradient(130deg, #172554 0%, #1e3a8a 45%, #2563eb 80%, #0ea5e9 100%);
    box-shadow: 0 24px 50px -22px rgba(30, 58, 138, .7);
    margin-bottom: 20px;
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero::before {
    width: 360px;
    height: 360px;
    top: -150px;
    right: -70px;
    background: radial-gradient(circle, rgba(255, 255, 255, .28), transparent 62%);
    animation: drift 11s ease-in-out infinite;
}

.hero::after {
    width: 240px;
    height: 240px;
    bottom: -110px;
    right: 150px;
    background: radial-gradient(circle, rgba(56, 189, 248, .45), transparent 60%);
    animation: drift2 14s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 22px;
    align-items: center;
    justify-content: space-between;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, .75);
}

.hero-title { font-size: 30px; font-weight: 800; margin: 10px 0 4px; letter-spacing: -.5px; }

.hero-sub { margin: 0 0 16px; color: rgba(255, 255, 255, .78); font-size: 14px; }

.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; }

.hero-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 13px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .18);
    font-size: 12.5px;
    font-weight: 600;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.hero-chip svg { color: #a5d8ff; }

.hero-balance {
    min-width: 250px;
    padding: 18px 20px;
    border-radius: 16px;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .22);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 14px 30px -16px rgba(0, 0, 0, .4);
    animation: riseIn .7s ease both .15s;
}

.hero-balance-top { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }

.hero-pill {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .8px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 999px;
}

.pill-due { background: #fee2e2; color: #b91c1c; }
.pill-adv { background: #dcfce7; color: #15803d; }

.hero-balance-label { font-size: 12.5px; color: rgba(255, 255, 255, .8); }

.hero-balance-amount { display: block; font-size: 30px; font-weight: 800; letter-spacing: -.5px; line-height: 1.15; }

.hero-balance-note { display: block; margin-top: 6px; font-size: 12px; color: rgba(255, 255, 255, .72); }

/* ==========================================================
   Stat cards
   ========================================================== */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}

.card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: 0 2px 10px rgba(15, 23, 42, .05);
    transition: transform .25s ease, box-shadow .25s ease;
}

.card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px -14px rgba(15, 23, 42, .22); }

.card .icon-chip {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.chip-due { background: #fee2e2; color: #dc2626; }
.chip-adv { background: #dcfce7; color: #16a34a; }
.chip-paid { background: #dbeafe; color: #1d4ed8; }
.chip-buy { background: #ede9fe; color: #7c3aed; }
.chip-limit { background: #fef9c3; color: #d97706; }

.card .label { font-size: 11.5px; color: var(--text-muted); font-weight: 700; text-transform: uppercase; letter-spacing: .6px; }
.card .value { font-size: 22px; font-weight: 800; margin-top: 6px; letter-spacing: -.4px; font-variant-numeric: tabular-nums; }
.card .value.due { color: var(--danger); }
.card .value.advance { color: var(--success); }

.cards-5 .card .label { font-size: 11px; }

/* ==========================================================
   Tables
   ========================================================== */

.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }

th, td { padding: 10px 10px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }

th { font-size: 11.5px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; white-space: nowrap; }

td.num, th.num { text-align: right; }
td.empty { text-align: center; color: var(--text-muted); padding: 20px; }

table tbody tr { transition: background .15s; }
table tbody tr:hover { background: #f8fafc; }

table tfoot td { border-top: 2px solid var(--border); font-weight: 700; background: #f8fafc; }

tr.ledger-opening td { background: #eff6ff; }
tr.ledger-closing td { background: #f0fdf4; }

/* ==========================================================
   Badges
   ========================================================== */

.badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 999px;
    white-space: nowrap;
}

.badge-paid, .badge-partial { background: #dbeafe; color: #1d4ed8; }
.badge-due { background: #fee2e2; color: #b91c1c; }
.badge-advance { background: #dcfce7; color: #15803d; }
.badge-cr, .badge-credit { background: #fef9c3; color: #a16207; }

.text-advance { color: #15803d; }
.text-due { color: #b91c1c; }

.ledger-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    font-size: 12.5px;
    color: var(--text-muted);
    background: #f8fafc;
    border: 1px dashed var(--border);
    border-radius: 10px;
    padding: 10px 14px;
    margin-bottom: 12px;
}

.ledger-summary strong { color: var(--text); }

/* ==========================================================
   Profile / details
   ========================================================== */

.profile-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px 22px; }

.profile-grid > div {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13.5px;
    padding: 12px 14px;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 12px;
}

.profile-grid .profile-full { grid-column: 1 / -1; }

.profile-grid span { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); }

.profile-grid strong { font-size: 14px; }

/* ==========================================================
   Empty / misc
   ========================================================== */

.empty-state { text-align: center; color: var(--text-muted); padding: 22px 0; }

/* ==========================================================
   Footer
   ========================================================== */

.portal-footer {
    margin-top: 6px;
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

.portal-contact { display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: center; margin-bottom: 10px; }

.portal-contact span { display: inline-flex; align-items: center; gap: 7px; }

.portal-contact svg { color: var(--primary); flex-shrink: 0; }

.portal-footer strong { color: var(--text); }

/* ==========================================================
   Login
   ========================================================== */

.portal-login-page {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    min-height: 100vh;
    background: #fff;
}

.login-aside {
    position: relative;
    overflow: hidden;
    background: linear-gradient(150deg, #0f172a 0%, #1e3a8a 55%, #2563eb 100%);
    color: #fff;
    padding: 48px 52px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 30px;
}

.login-aside::before,
.login-aside::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.login-aside::before {
    width: 480px;
    height: 480px;
    top: -170px;
    right: -120px;
    background: radial-gradient(circle, rgba(255, 255, 255, .22), transparent 62%);
    animation: drift 13s ease-in-out infinite;
}

.login-aside::after {
    width: 320px;
    height: 320px;
    bottom: -140px;
    left: -80px;
    background: radial-gradient(circle, rgba(56, 189, 248, .35), transparent 60%);
    animation: drift2 17s ease-in-out infinite;
}

.login-aside > * { position: relative; z-index: 1; }

.login-aside-brand { display: flex; align-items: center; gap: 12px; }

.login-aside-brand img {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: contain;
    background: #fff;
    padding: 4px;
    box-shadow: 0 8px 22px -8px rgba(0, 0, 0, .5);
}

.login-aside-brand strong { font-size: 19px; display: block; line-height: 1.2; }
.login-aside-brand small { color: rgba(255, 255, 255, .7); font-size: 12.5px; }

.login-aside h1 { font-size: 34px; font-weight: 800; letter-spacing: -.6px; margin: 0 0 10px; }
.login-aside .lead { color: rgba(255, 255, 255, .8); font-size: 15.5px; line-height: 1.6; margin: 0 0 26px; max-width: 420px; }

.login-features { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }

.login-features li {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 12px 16px;
    border-radius: 12px;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .14);
    font-size: 14px;
    font-weight: 600;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.login-features svg { color: #7dd3fc; flex-shrink: 0; }

.login-aside-contact { color: rgba(255, 255, 255, .75); font-size: 13px; line-height: 1.8; }
.login-aside-contact strong { color: #fff; }

.login-form-side {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 36px 22px;
    background:
        radial-gradient(circle at 80% 8%, rgba(37, 99, 235, .06), transparent 42%),
        radial-gradient(circle at 10% 92%, rgba(124, 58, 237, .07), transparent 45%),
        #f8fafc;
}

.portal-card {
    width: 100%;
    max-width: 400px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 30px 60px -24px rgba(15, 23, 42, .28);
    padding: 34px 30px 24px;
    animation: cardIn .6s cubic-bezier(.16, 1, .3, 1) both;
}

.portal-brand { text-align: center; margin-bottom: 24px; }

.portal-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 14px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--primary), var(--indigo));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 26px -10px rgba(37, 99, 235, .6);
    animation: pulseGlow 2.6s ease-in-out infinite;
}

.portal-brand h1 { font-size: 22px; margin: 0 0 4px; color: #111827; letter-spacing: -.4px; }
.portal-brand p { margin: 0; color: var(--text-muted); font-size: 13.5px; }

.login-brand-mobile { display: none; text-align: center; margin-bottom: 22px; }

.login-brand-mobile img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: contain;
    background: #fff;
    padding: 5px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 24px -10px rgba(15, 23, 42, .3);
}

.login-brand-mobile strong { display: block; margin-top: 10px; font-size: 19px; }
.login-brand-mobile small { color: var(--text-muted); }

.portal-footer-login { margin-top: 22px; text-align: center; font-size: 12px; color: #94a3b8; line-height: 1.7; }
.portal-footer-login strong { color: #64748b; }

/* ==========================================================
   Reveal animation
   ========================================================== */

.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .65s ease, transform .65s ease;
    transition-delay: var(--d, 0s);
}

.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .hero::before, .hero::after, .login-aside::before, .login-aside::after,
    .portal-icon { animation: none !important; }
}

/* ==========================================================
   Keyframes
   ========================================================== */

@keyframes drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(26px, -30px) scale(1.12); }
    66% { transform: translate(-18px, 18px) scale(.95); }
}

@keyframes drift2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-34px, -22px) scale(1.08); }
}

@keyframes riseIn {
    from { opacity: 0; transform: translateY(22px); }
    to { opacity: 1; transform: none; }
}

@keyframes cardIn {
    from { opacity: 0; transform: translateY(24px) scale(.98); }
    to { opacity: 1; transform: none; }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 12px 26px -10px rgba(37, 99, 235, .6), 0 0 0 0 rgba(37, 99, 235, .4); }
    50% { box-shadow: 0 12px 26px -10px rgba(37, 99, 235, .6), 0 0 0 14px rgba(37, 99, 235, 0); }
}

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

@media (max-width: 860px) {
    .login-aside { padding: 34px 30px; }
    .login-aside h1 { font-size: 27px; }
}

@media (max-width: 760px) {
    .portal-nav { flex-wrap: wrap; }

    .nav-toggle { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-h);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        background: rgba(255, 255, 255, .97);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        padding: 10px 16px 14px;
        box-shadow: 0 22px 40px -20px rgba(15, 23, 42, .3);
    }

    .nav-links.open { display: flex; }

    .nav-links a { padding: 12px 14px; }

    .nav-user .who { display: none; }

    .hero { padding: 24px 22px; }
    .hero-title { font-size: 24px; }
    .hero-balance { min-width: 100%; }

    .portal-login-page { grid-template-columns: 1fr; }
    .login-aside { display: none; }
    .login-brand-mobile { display: block; }
    .login-form-side { min-height: 100vh; }
}

@media (max-width: 560px) {
    .cards { grid-template-columns: 1fr 1fr; }
    .portal-brand small { display: none; }
    .nav-brand small { display: none; }
}