.customize-hero {
    padding: 48px 0 32px;
    background: linear-gradient(180deg, rgba(28, 177, 231, 0.06) 0%, transparent 100%);
}

.customize-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--text-heading);
    margin-bottom: 12px;
}

.customize-hero p {
    color: var(--text-muted);
    max-width: 640px;
    line-height: 1.6;
}

.customize-disclaimer {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 28px;
    padding: 18px 20px;
    border-radius: 16px;
    border: 1px solid rgba(0, 163, 222, 0.22);
    background:
        linear-gradient(135deg, rgba(255, 251, 235, 0.95) 0%, rgba(255, 247, 237, 0.98) 100%),
        var(--white);
    box-shadow: 0 8px 28px rgba(230, 81, 0, 0.08);
}

.customize-disclaimer-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(230, 81, 0, 0.12);
    color: #E65100;
    font-size: 1.35rem;
}

.customize-disclaimer-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.customize-disclaimer-title {
    font-size: 0.98rem;
    font-weight: 700;
    color: #BF360C;
    line-height: 1.35;
}

.customize-disclaimer-content p {
    margin: 0;
    font-size: 0.92rem;
    line-height: 1.6;
    color: #5D4037;
}

.customize-disclaimer-note {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding-top: 4px;
    font-size: 0.86rem !important;
    color: #6D4C41 !important;
}

.customize-disclaimer-note .bi {
    flex-shrink: 0;
    margin-top: 2px;
    color: #E65100;
}

.customize-layout {
    display: grid;
    grid-template-columns: minmax(280px, 360px) 1fr;
    gap: 28px;
    align-items: start;
    padding-bottom: 80px;
}

.customize-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 24px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 163, 222, 0.12);
    box-shadow: 0 12px 40px rgba(17, 24, 39, 0.06);
    position: sticky;
    top: 100px;
}

.customize-section h3 {
    font-size: 0.95rem;
    color: var(--text-heading);
    margin-bottom: 12px;
}

.customize-presets {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.customize-preset {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    border: 2px solid rgba(0, 163, 222, 0.12);
    background: var(--white);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-family: inherit;
    width: 100%;
}

.customize-preset:hover {
    border-color: rgba(0, 163, 222, 0.35);
    transform: translateY(-1px);
}

.customize-preset.active {
    border-color: var(--primary);
    box-shadow: 0 6px 20px rgba(0, 163, 222, 0.12);
}

.customize-preset-swatch {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    flex-shrink: 0;
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 3px 10px rgba(17, 24, 39, 0.1);
}

.customize-preset-swatch-default {
    background: linear-gradient(135deg, #0078A8 0%, #00A3DE 50%, #65D6FF 100%);
}

.customize-preset-swatch-lang-school {
    background: linear-gradient(135deg, #E65100 0%, #FF9800 50%, #FFB74D 100%);
}

.customize-preset-swatch-edutech {
    background: linear-gradient(135deg, #1B5E20 0%, #43A047 50%, #C0CA33 100%);
}

.customize-preset-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.customize-preset-text strong {
    font-size: 0.88rem;
    color: var(--text-heading);
}

.customize-preset-text small {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.customize-colors {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.customize-color-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.customize-color-row label {
    font-size: 0.9rem;
    color: var(--text-base);
}

.customize-color-row input[type="color"] {
    width: 48px;
    height: 36px;
    padding: 2px;
    border: 1px solid rgba(0, 163, 222, 0.2);
    border-radius: 8px;
    cursor: pointer;
    background: var(--white);
}

.customize-logo-upload {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.customize-logo-dropzone {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: 16px;
    border: 2px dashed rgba(0, 163, 222, 0.28);
    background:
        linear-gradient(135deg, rgba(0, 163, 222, 0.04) 0%, rgba(101, 214, 255, 0.08) 100%),
        var(--white);
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}

.customize-logo-dropzone::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(101, 214, 255, 0.18), transparent 55%);
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.customize-logo-dropzone:hover,
.customize-logo-dropzone:focus-within,
.customize-logo-dropzone.is-dragover {
    border-color: var(--primary);
    border-style: solid;
    box-shadow: 0 8px 24px rgba(0, 163, 222, 0.12);
    transform: translateY(-1px);
}

.customize-logo-dropzone:hover::before,
.customize-logo-dropzone:focus-within::before,
.customize-logo-dropzone.is-dragover::before {
    opacity: 1;
}

.customize-logo-preview {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    border-radius: 14px;
    background: var(--white);
    border: 1px solid rgba(0, 163, 222, 0.14);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8), 0 4px 14px rgba(17, 24, 39, 0.06);
}

.customize-logo-preview img {
    display: block;
    max-width: 56px;
    max-height: 56px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.customize-logo-dropzone-body {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.customize-logo-dropzone-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: rgba(0, 163, 222, 0.1);
    color: var(--primary);
    font-size: 1.05rem;
}

.customize-logo-dropzone-text strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-heading);
    line-height: 1.35;
}

.customize-logo-dropzone-text small {
    display: block;
    font-size: 0.76rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.customize-logo-filename {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    margin-top: 2px;
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(0, 163, 222, 0.12);
    font-size: 0.74rem;
    color: var(--text-base);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.customize-logo-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.customize-logo-upload .btn-reset-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    align-self: flex-start;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid rgba(0, 163, 222, 0.2);
    background: rgba(0, 163, 222, 0.06);
    color: var(--text-base);
    cursor: pointer;
    font-size: 0.85rem;
    font-family: inherit;
    transition: var(--transition);
}

.customize-logo-upload .btn-reset-logo:hover {
    background: rgba(0, 163, 222, 0.12);
    border-color: rgba(0, 163, 222, 0.35);
}

.customize-logo-colors-option {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid rgba(0, 163, 222, 0.12);
    background: rgba(0, 163, 222, 0.04);
    font-size: 0.85rem;
    color: var(--text-base);
    line-height: 1.45;
    cursor: pointer;
}

.customize-logo-colors-option input[type="checkbox"] {
    margin-top: 3px;
    accent-color: var(--primary);
    cursor: pointer;
    flex-shrink: 0;
}

.customize-font-select {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid rgba(0, 163, 222, 0.2);
    background: var(--white);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-base);
    cursor: pointer;
}

.customize-cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 8px;
    border-top: 1px solid rgba(0, 163, 222, 0.1);
}

.customize-preview {
    min-width: 0;
}

.customize-preview-frame {
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(0, 163, 222, 0.12);
    box-shadow: 0 16px 48px rgba(17, 24, 39, 0.1);
    background: var(--white);
}

.customize-preview-frame iframe {
    display: block;
    width: 100%;
    height: min(80vh, 900px);
    min-height: 520px;
    border: 0;
}

@media (max-width: 992px) {
    .customize-layout {
        grid-template-columns: 1fr;
    }

    .customize-panel {
        position: static;
    }

    .customize-preview-frame iframe {
        min-height: 420px;
        height: 60vh;
    }
}