:root {
    --ink: #172033;
    --muted: #667085;
    --line: #d9e0ea;
    --blue: #2563eb;
    --blue-dark: #1d4ed8;
    --error: #b42318;
    --paper: #ffffff;
    --canvas: #f4f7fb;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Open Sans', system-ui, sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.12), transparent 32rem),
        linear-gradient(145deg, #eef4ff 0%, var(--canvas) 48%, #f8fafc 100%);
}

.access-shell {
    width: min(100% - 32px, 460px);
    min-height: 100vh;
    margin: 0 auto;
    display: grid;
    align-content: center;
    gap: 18px;
    padding: 40px 0;
}

.brand {
    justify-self: center;
    color: var(--blue-dark);
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    text-decoration: none;
}

.access-card {
    padding: clamp(28px, 7vw, 44px);
    border: 1px solid rgba(217, 224, 234, 0.9);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.12);
}

.access-mark {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    margin-bottom: 24px;
    border-radius: 16px;
    color: white;
    background: linear-gradient(135deg, var(--blue), #7c3aed);
    font: 700 24px/1 'Poppins', sans-serif;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--blue-dark);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font: 700 clamp(28px, 7vw, 36px)/1.2 'Poppins', sans-serif;
}

.intro {
    margin: 14px 0 28px;
    color: var(--muted);
    line-height: 1.7;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 700;
}

input {
    width: 100%;
    min-height: 50px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 12px;
    color: var(--ink);
    background: white;
    font: inherit;
}

input:focus {
    outline: 3px solid rgba(37, 99, 235, 0.16);
    border-color: var(--blue);
}

button {
    width: 100%;
    min-height: 50px;
    margin-top: 18px;
    border: 0;
    border-radius: 12px;
    color: white;
    background: var(--blue);
    font: 700 15px/1 'Open Sans', sans-serif;
    cursor: pointer;
}

button:hover { background: var(--blue-dark); }
button:disabled { cursor: wait; opacity: 0.65; }

.form-error {
    margin: 10px 0 0;
    color: var(--error);
    font-size: 14px;
}

.support-note {
    margin: 20px 0 0;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.6;
}