.cover-builder-page {
    min-height: 100vh;
    font-family: 'Inter', sans-serif;
    background:
        radial-gradient(circle at top left, rgba(76, 201, 240, 0.24), transparent 28%),
        radial-gradient(circle at top right, rgba(67, 97, 238, 0.16), transparent 30%),
        linear-gradient(180deg, #eef6ff 0%, #f7fbff 32%, #ffffff 100%);
}

.cover-builder-main {
    position: relative;
    overflow: hidden;
}

.cover-builder-main::before,
.cover-builder-main::after {
    content: '';
    position: absolute;
    border-radius: 999px;
    pointer-events: none;
    filter: blur(18px);
}

.cover-builder-main::before {
    width: 260px;
    height: 260px;
    top: 60px;
    left: -120px;
    background: rgba(76, 201, 240, 0.16);
}

.cover-builder-main::after {
    width: 320px;
    height: 320px;
    right: -140px;
    top: 180px;
    background: rgba(67, 97, 238, 0.14);
}

.cover-builder-shell {
    max-width: 1380px;
    margin: 0 auto;
    padding: 48px 24px 72px;
}

.cover-builder-intro {
    display: grid;
    gap: 16px;
    justify-items: center;
    margin-bottom: 32px;
    text-align: center;
}

.cover-builder-copy {
    max-width: 760px;
    margin: 0 auto;
}

.cover-builder-copy h1 {
    margin-top: 0;
    font-family: 'Inter', sans-serif;
    font-size: clamp(2.25rem, 4vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -0.05em;
    font-weight: 800;
}

.cover-builder-copy p {
    margin-top: 12px;
    font-size: 1rem;
    line-height: 1.7;
    color: #516074;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.cover-builder-layout {
    display: grid;
    grid-template-columns: minmax(340px, 430px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.builder-panel,
.preview-panel {
    position: relative;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.1);
    backdrop-filter: blur(18px);
}

.builder-panel {
    padding: 28px;
}

.preview-panel {
    padding: 28px;
}

.builder-panel__header h2,
.preview-panel__header h2 {
    font-family: 'Inter', sans-serif;
    font-size: 1.45rem;
    letter-spacing: -0.03em;
    font-weight: 800;
}

.builder-panel__header p,
.preview-panel__header p {
    margin-top: 8px;
    color: #516074;
}

.builder-form {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.builder-section {
    padding: 18px;
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.96), rgba(255, 255, 255, 0.92));
    border: 1px solid rgba(226, 232, 240, 0.9);
}

.builder-section__title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.builder-section__title h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    letter-spacing: -0.02em;
    font-weight: 800;
}

.builder-section__title span {
    font-size: 0.86rem;
    font-weight: 600;
    color: #64748b;
}

.builder-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.builder-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.builder-field--full {
    grid-column: 1 / -1;
}

.builder-field label {
    font-size: 0.92rem;
    font-weight: 600;
    color: #334155;
}

.builder-field input {
    width: 100%;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid #d7deea;
    background: #ffffff;
    color: #0f172a;
    font: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.builder-field input::placeholder {
    color: #94a3b8;
}

.builder-field input:focus {
    outline: none;
    border-color: rgba(67, 97, 238, 0.65);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.12);
}

.builder-range {
    width: 100%;
    padding: 14px 16px;
    border-radius: 18px;
    border: 1px solid #d7deea;
    background: #ffffff;
}

.builder-range__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.builder-range__header label {
    font-size: 0.92rem;
    font-weight: 600;
    color: #334155;
}

.builder-range__value {
    min-width: 48px;
    text-align: right;
    font-size: 0.88rem;
    font-weight: 700;
    color: #214c9b;
}

.builder-range input[type="range"] {
    width: 100%;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: transparent;
    box-shadow: none;
    accent-color: #4361ee;
}

.builder-range input[type="range"]:focus {
    outline: none;
    box-shadow: none;
}

.builder-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.builder-actions .btn {
    flex: 1;
    min-width: 160px;
}

.builder-status {
    min-height: 24px;
    font-size: 0.94rem;
    color: #4361ee;
}

.preview-panel__header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 20px;
    margin-bottom: 18px;
}

.paper-stage {
    padding: 14px 0;
    border-radius: 26px;
    background:
        linear-gradient(180deg, rgba(226, 232, 240, 0.44), rgba(255, 255, 255, 0.75)),
        repeating-linear-gradient(45deg, rgba(226, 232, 240, 0.2), rgba(226, 232, 240, 0.2) 10px, rgba(255, 255, 255, 0.12) 10px, rgba(255, 255, 255, 0.12) 20px);
    overflow-x: hidden;
}

.cover-paper {
    --cover-department-size: 24px;
    --cover-document-type-size: 18px;
    --cover-course-size: 16px;
    --cover-submitted-to-size: 16px;
    --cover-submitted-by-size: 16px;
    width: min(210mm, 100%);
    min-height: 297mm;
    margin: 0 auto;
    padding: 12mm 15mm 16mm;
    background: #ffffff;
    color: #0f172a;
    font-family: 'Inter', sans-serif;
    box-shadow: 0 28px 70px rgba(15, 23, 42, 0.18);
    position: relative;
    overflow: hidden;
}

body.is-exporting .cover-paper {
    width: 210mm;
    height: 297mm;
    min-height: 297mm;
    max-height: 297mm;
    overflow: hidden;
}

.cover-paper::before {
    content: '';
    position: absolute;
    inset: 14px;
    border: 1px solid rgba(37, 99, 235, 0.14);
    pointer-events: none;
}

.cover-paper__accent {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cover-paper__accent::before,
.cover-paper__accent::after {
    content: '';
    position: absolute;
    width: 210px;
    height: 210px;
    border-radius: 999px;
    filter: blur(26px);
    opacity: 0.15;
}

.cover-paper__accent::before {
    top: -90px;
    right: -70px;
    background: #4cc9f0;
}

.cover-paper__accent::after {
    bottom: -120px;
    left: -80px;
    background: #4361ee;
}

.cover-paper__body {
    position: relative;
    z-index: 1;
}

.cover-paper__logo {
    display: flex;
    justify-content: center;
    margin-bottom: 4px;
}

.cover-paper__logo img {
    width: 380px;
    height: auto;
}

.cover-paper__header {
    text-align: center;
}

.cover-paper__header h1,
.cover-paper__header h2,
.cover-paper__header h3 {
    margin: 0;
}

.cover-paper__header h1 {
    font-family: 'Merriweather', serif;
    font-size: 2.18rem;
    line-height: 1.22;
    letter-spacing: -0.02em;
    font-weight: 900;
}

.cover-paper__header h2 {
    margin-top: 9px;
    font-family: 'Inter', sans-serif;
    font-size: var(--cover-department-size, 24px);
    line-height: 1.32;
    font-weight: 700;
    letter-spacing: 0.01em;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.cover-paper__header h3 {
    margin-top: 30px;
    font-family: 'Inter', sans-serif;
    font-size: var(--cover-document-type-size, 18px);
    line-height: 1.34;
    letter-spacing: 0.04em;
    font-weight: 800;
    text-transform: uppercase;
}

.cover-paper__divider {
    width: 240px;
    height: 3px;
    margin: 12px auto 0;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.45), transparent);
}

.cover-paper__course {
    margin-top: 22px;
    padding: 15px 17px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.95), rgba(255, 255, 255, 0.98));
    border: 1px solid rgba(226, 232, 240, 0.95);
}

.cover-paper__course[data-size-target="course"] {
    font-size: var(--cover-course-size, 16px);
}

.cover-line {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 1rem;
    line-height: 1.58;
    overflow-wrap: anywhere;
}

.cover-line + .cover-line {
    margin-top: 6px;
}

.cover-line__label {
    font-weight: 700;
    white-space: nowrap;
}

.cover-line__value {
    flex: 1;
    min-width: 0;
}

.cover-paper__course[data-size-target="course"] .cover-line {
    font-size: 1em;
}

.cover-paper__sections {
    margin-top: 54px;
    display: grid;
    gap: 82px;
}

.cover-section {
    padding-left: 16px;
    border-left: 4px solid rgba(37, 99, 235, 0.78);
}

.cover-section[data-size-target="submitted-to"] {
    font-size: var(--cover-submitted-to-size, 16px);
}

.cover-section[data-size-target="submitted-by"] {
    font-size: var(--cover-submitted-by-size, 16px);
}

.cover-section__title {
    font-family: 'Merriweather', serif;
    font-size: 1.46em;
    line-height: 1.2;
    color: #214c9b;
    margin-bottom: 10px;
    letter-spacing: -0.03em;
    font-weight: 700;
}

.cover-section__body {
    display: grid;
    gap: 2px;
    font-size: 0.98em;
    line-height: 1.54;
}

.cover-section__body .cover-line {
    font-size: 1em;
}

.cover-section__body .cover-line__label {
    min-width: 62px;
}

.cover-section__text {
    overflow-wrap: anywhere;
    word-break: break-word;
    min-height: 1.58em;
}

.cover-section__university {
    margin-top: 6px;
}

body.is-exporting .cover-paper {
    box-shadow: none;
}

@media (max-width: 1180px) {
    .cover-builder-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .cover-builder-shell {
        padding: 32px 16px 56px;
    }

    .cover-builder-intro {
        margin-bottom: 24px;
    }

    .builder-panel,
    .preview-panel {
        padding: 20px;
        border-radius: 24px;
    }

    .builder-grid {
        grid-template-columns: 1fr;
    }

    .builder-range__header {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .paper-stage {
        padding: 10px;
    }
}