:root {
    --base-green-900: #0d3b2f;
    --base-green-800: #14503e;
    --base-green-700: #1d6a50;
    --base-burgundy-700: #751d37;
    --base-cream: #f6f1e8;
    --base-white: #ffffff;
    --base-ink: #12211b;
    --base-muted: #62756d;
    --base-border: rgba(18, 33, 27, 0.12);
    --base-shadow: 0 18px 45px rgba(7, 22, 17, 0.14);
    --base-radius-lg: 28px;
    --base-radius-md: 18px;
}

* {
    box-sizing: border-box;
}

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

body.app-body {
    margin: 0;
    font-family: 'Source Sans 3', sans-serif;
    color: var(--base-ink);
    background:
        radial-gradient(circle at top left, rgba(29, 106, 80, 0.18), transparent 30%),
        radial-gradient(circle at top right, rgba(117, 29, 55, 0.16), transparent 28%),
        linear-gradient(180deg, #eef4ef 0%, #f8f3eb 100%);
}

.app-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 24px 0 40px;
}

.app-header {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 18px;
}

.app-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(14px);
    border-radius: 999px;
    box-shadow: 0 10px 30px rgba(18, 33, 27, 0.08);
}

.app-brand img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.app-brand__eyebrow {
    display: block;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--base-muted);
}

.app-brand__title {
    display: block;
    font-family: 'Barlow Semi Condensed', sans-serif;
    font-size: 1.18rem;
    letter-spacing: 0.02em;
}

.app-main {
    width: 100%;
}

.flash-stack {
    display: grid;
    gap: 10px;
    margin-bottom: 20px;
}

.flash-alert {
    margin: 0;
    border: none;
    border-radius: 16px;
    box-shadow: 0 10px 26px rgba(18, 33, 27, 0.08);
}

.auth-shell {
    display: flex;
    justify-content: center;
    padding: 24px 0 40px;
}

.auth-panel {
    width: min(100%, 540px);
    padding: 32px;
    border-radius: var(--base-radius-lg);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--base-shadow);
}

.auth-panel__eyebrow {
    display: inline-block;
    margin-bottom: 12px;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--base-green-700);
    font-weight: 700;
}

.auth-panel h1,
.auth-panel h2 {
    margin: 0 0 10px;
    font-family: 'Barlow Semi Condensed', sans-serif;
    font-size: clamp(2rem, 3.3vw, 2.6rem);
    line-height: 0.96;
}

.auth-panel p {
    margin: 0 0 24px;
    font-size: 1rem;
    color: var(--base-muted);
}

.auth-panel .form-label {
    font-weight: 700;
    color: var(--base-green-900);
}

.auth-panel .form-control {
    min-height: 52px;
    border-radius: 14px;
    border-color: rgba(20, 80, 62, 0.18);
    padding-inline: 16px;
}

.auth-panel .form-control:focus {
    border-color: rgba(29, 106, 80, 0.55);
    box-shadow: 0 0 0 0.25rem rgba(29, 106, 80, 0.14);
}

.auth-panel .btn-primary {
    min-height: 52px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--base-green-700), var(--base-burgundy-700));
    font-weight: 700;
}

.auth-panel .btn-primary:hover,
.auth-panel .btn-primary:focus {
    background: linear-gradient(135deg, var(--base-green-800), #66172f);
}

.auth-panel__footer {
    margin-top: 18px;
    text-align: center;
}

.auth-panel__footer a {
    color: var(--base-burgundy-700);
    font-weight: 700;
    text-decoration: none;
}

.auth-panel__footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .app-shell {
        width: min(100% - 20px, 1180px);
        padding-top: 18px;
    }

    .app-header {
        margin-bottom: 14px;
    }

    .app-brand {
        width: 100%;
        justify-content: center;
        border-radius: 22px;
    }

    .auth-panel {
        padding: 24px 20px;
        border-radius: 22px;
    }
}