:root {
    --slots-primary: #123c7c;
    --slots-secondary: #06a6d8;
    --slots-accent: #f5b642;
    --slots-ink: #172033;
    --slots-muted: #667085;
    --slots-surface: rgba(255, 255, 255, .94);
}

body {
    min-height: 100vh;
    color: var(--slots-ink);
    background:
        radial-gradient(circle at top left, rgba(6, 166, 216, .32), transparent 34rem),
        radial-gradient(circle at 90% 12%, rgba(245, 182, 66, .26), transparent 27rem),
        linear-gradient(135deg, #eef7ff 0%, #f7fbff 42%, #fff8ea 100%);
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    content: "";
    background-image:
        linear-gradient(rgba(18, 60, 124, .055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(18, 60, 124, .055) 1px, transparent 1px);
    background-size: 34px 34px;
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .82), transparent 76%);
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .82), transparent 76%);
}

.page-shell {
    width: min(1180px, calc(100% - 2rem));
    margin-inline: auto;
    padding-block: 2rem 3rem;
}

.hero-panel {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .62);
    border-radius: 28px;
    background:
        linear-gradient(135deg, rgba(18, 60, 124, .95), rgba(7, 141, 193, .88)),
        var(--slots-primary);
    box-shadow: 0 24px 60px rgba(18, 60, 124, .2);
}

.hero-panel::after {
    position: absolute;
    right: -6rem;
    bottom: -7rem;
    width: 22rem;
    height: 22rem;
    content: "";
    border: 44px solid rgba(255, 255, 255, .13);
    border-radius: 999px;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    padding: 16px 0;
    /* color: #fff; */
    /* border: 1px solid rgba(255, 255, 255, .22); */
    /* border-radius: 999px; */
    /* background: rgba(255, 255, 255, .14); */
    /* backdrop-filter: blur(8px); */
}

.brand-mark img {
    width: 280px;
}

.hero-copy {
    position: relative;
    z-index: 1;
}

.hero-copy p {
    max-width: 720px;
    color: rgba(255, 255, 255, .8);
}

.signature-card {
    border: 1px solid rgba(18, 60, 124, .08);
    border-radius: 22px;
    background: var(--slots-surface);
    box-shadow: 0 24px 70px rgba(18, 60, 124, .13);
    backdrop-filter: blur(12px);
}

.section-title {
    display: flex;
    align-items: center;
    gap: .65rem;
    margin-bottom: 1rem;
    color: var(--slots-primary);
    font-size: .82rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.section-title::before {
    width: .75rem;
    height: .75rem;
    content: "";
    border-radius: 50%;
    background: linear-gradient(135deg, var(--slots-secondary), var(--slots-accent));
    box-shadow: 0 0 0 5px rgba(6, 166, 216, .12);
}

.form-control,
.form-select,
.input-group-text {
    min-height: 48px;
    border-color: #d9e4f2;
    border-radius: 14px;
}

.input-group>.form-control,
.input-group>.form-select,
.input-group>.input-group-text {
    border-radius: 14px;
}

.input-group-text {
    color: var(--slots-primary);
    font-weight: 700;
    background: #edf7ff;
}

.form-control:focus,
.form-select:focus,
.form-check-input:focus {
    border-color: var(--slots-secondary);
    box-shadow: 0 0 0 .25rem rgba(6, 166, 216, .18);
}

.form-control[readonly] {
    background-color: #f7fbff;
}

.signature-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.signature-option {
    margin: 0;
}

.signature-option .form-check-input {
    position: absolute;
    opacity: 0;
}

.signature-option .form-check-label {
    position: relative;
    display: block;
    min-height: 112px;
    padding: .75rem;
    border: 1px solid #d9e4f2;
    border-radius: 16px;
    background: #fff;
    cursor: pointer;
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.signature-option .form-check-label::after {
    position: absolute;
    top: .75rem;
    right: .75rem;
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    color: #fff;
    font-size: .9rem;
    font-weight: 800;
    content: "";
    border: 2px solid #fff;
    border-radius: 999px;
    background: rgba(18, 60, 124, .18);
    box-shadow: 0 6px 16px rgba(18, 60, 124, .14);
}

.signature-option img {
    display: block;
    height: 128px;
    object-fit: contain;
    border-radius: 10px;
}

.signature-option .form-check-label:hover {
    transform: translateY(-1px);
    border-color: rgba(6, 166, 216, .5);
    box-shadow: 0 12px 24px rgba(18, 60, 124, .1);
}

.signature-option .form-check-input:checked+.form-check-label {
    border-color: var(--slots-secondary);
    background: #f5fbff;
    box-shadow: 0 12px 26px rgba(18, 60, 124, .2);
}

.signature-option .form-check-input:checked+.form-check-label::after {
    content: "✓";
    background: linear-gradient(135deg, var(--slots-primary), var(--slots-secondary));
}

.was-validated .signature-field:has(.form-check-input:invalid) .invalid-feedback {
    display: block;
}

.was-validated .signature-field:has(.form-check-input:invalid) .form-check-label {
    border-color: var(--bs-form-invalid-border-color);
}

.btn-create {
    min-height: 50px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--slots-primary), var(--slots-secondary));
    box-shadow: 0 16px 28px rgba(18, 60, 124, .22);
}

.btn-create:hover,
.btn-create:focus {
    background: linear-gradient(135deg, #0e326a, #058dbb);
    box-shadow: 0 18px 34px rgba(18, 60, 124, .28);
}

.modal-content {
    border: 0;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 24px 70px rgba(18, 60, 124, .22);
}

.signature-modal .modal-content {
    background:
        radial-gradient(circle at top left, rgba(6, 166, 216, .16), transparent 24rem),
        linear-gradient(135deg, #f7fbff, #fffaf0);
}

.signature-modal .modal-header {
    color: #fff;
    border: 0;
    background: linear-gradient(135deg, var(--slots-primary), var(--slots-secondary));
}

.signature-modal .modal-title {
    font-weight: 800;
}

.signature-modal .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
    opacity: .85;
}

.signature-modal .modal-body {
    padding: 1rem;
}

.signature-preview {
    overflow: hidden;
    padding: 1rem;
    border: 1px solid rgba(18, 60, 124, .1);
    border-radius: 16px;
    background: #fff;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .72), 0 14px 34px rgba(18, 60, 124, .1);
}

.signature-preview iframe {
    display: block;
    width: 100%;
    height: 400px;
    border: 0;
    background: #fff;
}

.signature-modal .modal-footer {
    border: 0;
    background: rgba(255, 255, 255, .58);
}

.btn-copy-signature {
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--slots-primary), var(--slots-secondary));
    box-shadow: 0 12px 24px rgba(18, 60, 124, .18);
}

.btn-close-signature {
    border-radius: 999px;
}

@media (max-width: 575.98px) {
    .page-shell {
        width: min(100% - 1rem, 1180px);
        padding-block: 1rem 2rem;
    }

    .hero-panel,
    .signature-card {
        border-radius: 18px;
    }

    .display-5 {
        font-size: 2rem;
    }

    .input-group {
        flex-direction: column;
        gap: .5rem;
    }

    .input-group>.form-control,
    .input-group>.form-select,
    .input-group>.input-group-text {
        width: 100%;
        margin-left: 0 !important;
    }
}