:root {
    --bg-a: #e8f5ff;
    --bg-b: #f6fffb;
    --text-main: #102a43;
    --text-muted: #486581;
    --panel-bg: rgba(255, 255, 255, 0.8);
    --panel-border: rgba(255, 255, 255, 0.72);
    --accent-a: #00a3a3;
    --accent-b: #0b74d1;
    --accent-c: #f2a600;
    --danger: #b42318;
    --danger-bg: #ffe5e3;
    --success: #106d3f;
    --success-bg: #def8e8;
    --focus-ring: rgba(11, 116, 209, 0.24);
    --radius-xl: 28px;
    --radius-md: 14px;
    --shadow-xl: 0 26px 60px rgba(29, 53, 87, 0.18);
    --shadow-md: 0 10px 26px rgba(37, 64, 94, 0.12);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
}

body.login-native-page {
    min-height: 100vh;
    font-family: "Bahnschrift", "Trebuchet MS", "Candara", sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at 10% 12%, #fff8da 0%, rgba(255, 248, 218, 0) 45%),
        radial-gradient(circle at 92% 86%, #d5fff5 0%, rgba(213, 255, 245, 0) 46%),
        linear-gradient(140deg, var(--bg-a) 0%, #f2f9ff 45%, var(--bg-b) 100%);
    overflow-x: hidden;
}

.login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(11, 116, 209, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(11, 116, 209, 0.07) 1px, transparent 1px);
    background-size: 42px 42px;
    -webkit-mask-image: radial-gradient(circle at 60% 40%, rgba(0, 0, 0, 0.92), transparent 80%);
    mask-image: radial-gradient(circle at 60% 40%, rgba(0, 0, 0, 0.92), transparent 80%);
}

.bg-orb {
    position: absolute;
    border-radius: 999px;
    opacity: 0.5;
    filter: blur(3px);
    animation: floatOrb 14s ease-in-out infinite;
}

.orb-a {
    width: min(40vw, 480px);
    aspect-ratio: 1;
    left: -140px;
    top: -100px;
    background: radial-gradient(circle at 35% 30%, #95fbe8 0%, #2cb9d1 45%, rgba(44, 185, 209, 0) 74%);
}

.orb-b {
    width: min(36vw, 430px);
    aspect-ratio: 1;
    right: -150px;
    bottom: -120px;
    background: radial-gradient(circle at 70% 36%, #ffe8a2 0%, #ffb95e 44%, rgba(255, 185, 94, 0) 74%);
    animation-duration: 17s;
}

.login-shell {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: clamp(24px, 5vw, 64px);
}

.brand-panel,
.login-panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.brand-panel {
    padding: clamp(26px, 4vw, 48px);
}

.eyebrow {
    margin: 0 0 14px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.72rem;
    font-weight: 700;
    color: #3f5773;
}

.brand-panel h1 {
    margin: 0;
    font-size: clamp(2.1rem, 4.2vw, 3.5rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.brand-copy {
    margin: 18px 0 22px;
    color: var(--text-muted);
    line-height: 1.68;
    max-width: 52ch;
}

.feature-points {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.feature-points li {
    width: fit-content;
    max-width: 100%;
    padding: 12px 14px;
    border-radius: 999px;
    background: linear-gradient(95deg, rgba(0, 163, 163, 0.12), rgba(11, 116, 209, 0.12));
    font-size: 0.92rem;
    font-weight: 600;
    color: #1b3857;
}

.login-panel {
    width: min(100%, 520px);
    padding: clamp(22px, 3.2vw, 36px);
}

.login-logo {
    width: 92px;
    height: 92px;
    margin-bottom: 14px;
    border-radius: 22px;
    display: grid;
    place-items: center;
    background: linear-gradient(130deg, rgba(255, 255, 255, 0.92), rgba(233, 247, 255, 0.95));
    box-shadow: var(--shadow-md);
}

.login-logo img {
    max-width: 68%;
    max-height: 68%;
}

.login-panel h2 {
    margin: 0;
    font-size: clamp(1.55rem, 2.4vw, 2rem);
    line-height: 1.2;
}

.panel-subtitle {
    margin: 8px 0 18px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.alert-msg {
    border-radius: var(--radius-md);
    padding: 12px 14px;
    margin-bottom: 14px;
    font-size: 0.93rem;
    line-height: 1.45;
}

.alert-error {
    background: var(--danger-bg);
    border: 1px solid rgba(180, 35, 24, 0.28);
    color: var(--danger);
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid rgba(16, 109, 63, 0.24);
    color: var(--success);
}

.login-form {
    display: grid;
    gap: 14px;
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    font-size: 0.86rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-weight: 700;
    color: #355271;
}

.form-group input {
    width: 100%;
    border: 1px solid rgba(55, 80, 111, 0.22);
    border-radius: var(--radius-md);
    padding: 13px 14px;
    font: inherit;
    font-size: 1rem;
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.86);
    transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.form-group input:hover {
    border-color: rgba(21, 89, 178, 0.45);
}

.form-group input:focus {
    outline: none;
    border-color: #2d79d0;
    box-shadow: 0 0 0 4px var(--focus-ring);
    transform: translateY(-1px);
}

.btn-login {
    width: 100%;
    border: 0;
    border-radius: var(--radius-md);
    padding: 14px;
    color: #fff;
    font: inherit;
    font-size: 0.98rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    background: linear-gradient(106deg, var(--accent-a) 0%, var(--accent-b) 66%, #1562af 100%);
    box-shadow: 0 16px 30px rgba(11, 116, 209, 0.25);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 20px 34px rgba(11, 116, 209, 0.28);
    filter: brightness(1.03);
}

.btn-login:active {
    transform: translateY(0);
}

.btn-loader {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    display: none;
}

body.authenticating .btn-loader {
    display: inline-block;
    animation: spin 0.8s linear infinite;
}

body.authenticating .btn-login {
    animation: pulseAuth 0.95s ease-in-out infinite;
}

.demo-accounts {
    margin-top: 18px;
    border-top: 1px dashed rgba(42, 67, 97, 0.26);
    padding-top: 14px;
}

.demo-accounts h4 {
    margin: 0 0 8px;
    font-size: 0.86rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #2f4a68;
}

.demo-account {
    margin: 4px 0;
    font-size: 0.85rem;
    color: #35506c;
}

.dev-warning {
    margin-top: 8px;
    font-size: 0.75rem;
    color: #a5471f;
}

.reveal-slide-up {
    opacity: 1;
    transform: none;
}

body.has-error .login-panel {
    animation: shakePanel 520ms cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

/* Shared ERP visual language: navy, blue, structured, and deliberately quiet. */
body.login-native-page {
    font-family: Roboto, "Segoe UI", sans-serif;
    background: #edf2f6;
    background-image: linear-gradient(135deg, rgba(52, 152, 219, 0.06) 1px, transparent 1px), linear-gradient(45deg, rgba(44, 62, 80, 0.035) 1px, transparent 1px);
    background-size: 30px 30px;
}

.bg-orb { display: none; }
.bg-grid {
    background-image: linear-gradient(rgba(52, 152, 219, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(52, 152, 219, 0.07) 1px, transparent 1px);
    background-size: 30px 30px;
    -webkit-mask-image: none;
    mask-image: none;
}

.login-shell { padding: 24px; }
.login-panel {
    width: min(100%, 440px);
    padding: 32px;
    border: 1px solid #dbe3ea;
    border-top: 4px solid #3498db;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(31, 45, 58, 0.12);
}

.login-logo {
    width: 62px;
    height: 62px;
    padding: 8px;
    margin-bottom: 20px;
    border-radius: 7px;
    background: #2c3e50;
    box-shadow: none;
}
.login-logo img { max-width: 100%; max-height: 100%; }
.login-panel h2 { color: #1f2d3a; font-size: 1.45rem; letter-spacing: 0; }
.panel-subtitle { margin: 7px 0 22px; color: #617080; }
.form-group { gap: 6px; }
.form-group label { color: #1f2d3a; font-size: 12px; letter-spacing: .03em; }
.form-group input { padding: 10px 11px; border: 1px solid #c8d4dd; border-radius: 5px; font-size: 14px; }
.form-group input:focus { border-color: #3498db; box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.16); transform: none; }
.btn-login { padding: 11px 14px; border-radius: 5px; background: #3498db; box-shadow: none; }
.btn-login:hover { background: #2980b9; }
.demo-accounts { border-radius: 6px; border-color: #dbe3ea; background: #f7f9fc; }

@media (max-width: 980px) {
    .login-shell {
        padding: 20px;
    }
}

@media (max-width: 520px) {
    .login-panel {
        padding: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bg-orb,
    body.login-ready .reveal-slide-up,
    body.authenticating .btn-login,
    body.has-error .login-panel {
        animation: none !important;
    }

    .reveal-slide-up {
        opacity: 1;
        transform: none;
    }
}

@keyframes revealUp {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes floatOrb {
    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }
    50% {
        transform: translate3d(0, -18px, 0);
    }
}

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

@keyframes pulseAuth {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.994);
    }
}

@keyframes shakePanel {
    0% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
    100% { transform: translateX(0); }
}