/* ============================================
   Labelprint Specifications Form Styles
   Φόρμα Προδιαγραφών
   ============================================ */

/* === CSS Reset & Variables === */
:root {
    --lpf-primary: #035aa6;
    --lpf-primary-dark: #02447f;
    --lpf-primary-light: #4a90d9;
    --lpf-banner-bg: #035aa6;
    --lpf-banner-dark: #02447f;
    --lpf-bg: #02447f;
    --lpf-gray-bg: rgba(255, 255, 255, 0.04);
    --lpf-gray-border: rgba(255, 255, 255, 0.15);
    --lpf-gray-medium: rgba(255, 255, 255, 0.5);
    --lpf-gray-dark: #ffffff;
    --lpf-text: #ffffff;
    --lpf-text-secondary: rgba(255, 255, 255, 0.9);
    --lpf-white: #FFFFFF;
    --lpf-input-bg: rgba(255, 255, 255, 0.08);
    --lpf-input-border: rgba(255, 255, 255, 0.25);
    --lpf-input-focus: #4a90d9;
    --lpf-highlight: #F57C00;
    --lpf-success: #66BB6A;
    --lpf-error: #EF5350;
    --lpf-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    --lpf-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --lpf-radius: 6px;
    --lpf-radius-sm: 4px;
    --lpf-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* === Wrapper === */
#lpf-form-wrapper {
    font-family: var(--lpf-font);
    max-width: 900px;
    min-height: 750px;
    margin: 40px auto;
    background: var(--lpf-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--lpf-shadow-lg);
    border-radius: 8px;
    overflow: hidden;
    color: var(--lpf-text);
    font-size: 13px;
    line-height: 1.5;
    height: auto;
}

#lpf-form-wrapper *,
#lpf-form-wrapper *::before,
#lpf-form-wrapper *::after {
    box-sizing: border-box;
}

/* === Header === */
.lpf-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    background: rgba(0, 0, 0, 0.15);
    border-bottom: 2px solid var(--lpf-primary);
}

.lpf-logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lpf-logo-img {
    height: 55px;
    width: auto;
}

.lpf-title-area h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--lpf-white);
    margin: 0;
    padding: 0;
    letter-spacing: 0.5px;
}

/* === Form Rows === */
.lpf-row {
    padding: 12px 28px;
    border-bottom: 1px solid var(--lpf-gray-border);
}

.lpf-row:last-child {
    border-bottom: none;
}

/* 3-Column Row */
.lpf-row-3col {
    display: grid;
    grid-template-columns: 2fr 1.2fr 1.2fr;
    gap: 16px;
    align-items: end;
}

/* 2-Column Row */
.lpf-row-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-items: end;
}

/* Complex Row (3 sections) */
.lpf-row-complex {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1.5fr;
    gap: 16px;
    align-items: start;
    background: rgba(255, 255, 255, 0.04);
}

/* === Field Labels === */
.lpf-field label,
.lpf-section-label {
    display: flex;
    font-size: 15px;
    font-weight: 600;
    color: var(--lpf-text-secondary);
    margin-bottom: 4px;
    letter-spacing: 0.3px;
}

.lpf-section-label {
    font-size: 15px;
    font-weight: 700;
    color: var(--lpf-text);
    margin-bottom: 8px;
}

/* === Input Fields === */
.lpf-field input[type="text"],
.lpf-field textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--lpf-input-border);
    border-radius: var(--lpf-radius-sm);
    background: var(--lpf-input-bg);
    font-family: var(--lpf-font);
    font-size: 13px;
    color: var(--lpf-text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
}

.lpf-field input[type="text"]:focus,
.lpf-field textarea:focus {
    border-color: var(--lpf-input-focus);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.2);
    background: rgba(255, 255, 255, 0.12);
}

.lpf-field input[type="text"]::placeholder,
.lpf-field textarea::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.lpf-field textarea {
    resize: vertical;
    min-height: 70px;
}

.lpf-small-input {
    width: 80px !important;
    display: inline-block !important;
}

/* === Custom Checkboxes === */
.lpf-checkbox-group {
    display: flex;
    flex-wrap: wrap;
}

.lpf-inline-group {
    gap: 12px;
    flex-direction: row;
    align-items: center;
}

.lpf-vertical-group {
    gap: 5px;
    flex-direction: column;
}

.lpf-cb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 500;
    color: var(--lpf-text);
    cursor: pointer;
    position: relative;
    user-select: none;
    white-space: nowrap;
}

.lpf-cb input[type="checkbox"],
.lpf-cb input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.lpf-cb-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    min-width: 18px;
    border: 2px solid var(--lpf-input-border);
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
    transition: all 0.2s ease;
    position: relative;
}

.lpf-cb input[type="radio"] + .lpf-cb-mark {
    border-radius: 50%;
}

.lpf-cb input[type="checkbox"]:checked + .lpf-cb-mark,
.lpf-cb input[type="radio"]:checked + .lpf-cb-mark {
    background: var(--lpf-primary);
    border-color: var(--lpf-primary-light);
}

.lpf-cb input[type="checkbox"]:checked + .lpf-cb-mark::after {
    content: '';
    display: block;
    width: 5px;
    height: 9px;
    border: solid var(--lpf-white);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-top: -2px;
}

.lpf-cb input[type="radio"]:checked + .lpf-cb-mark::after {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--lpf-white);
}

.lpf-cb:hover .lpf-cb-mark {
    border-color: var(--lpf-primary-light);
}

/* Light checkbox variant (for dark backgrounds) */
.lpf-cb-mark-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 3px;
    background: transparent;
    transition: all 0.2s ease;
    position: relative;
}

.lpf-cb-light input[type="checkbox"]:checked + .lpf-cb-mark-light {
    background: var(--lpf-white);
    border-color: var(--lpf-white);
}

.lpf-cb-light input[type="checkbox"]:checked + .lpf-cb-mark-light::after {
    content: '';
    display: block;
    width: 5px;
    height: 9px;
    border: solid var(--lpf-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-top: -2px;
}

/* SPOT UV sub option */
.lpf-cb-with-sub {
    flex-wrap: wrap;
}

.lpf-sub-option {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
    font-size: 15px;
    color: var(--lpf-text-secondary);
}

.lpf-line-connector {
    display: inline-block;
    width: 20px;
    height: 1px;
    background: var(--lpf-gray-medium);
}

/* === Extras / Varnish / Notes Layout === */
.lpf-field-extras {
    border-right: 1px solid var(--lpf-gray-border);
    padding-right: 16px;
}

.lpf-field-varnish-lam {
    border-right: 1px solid var(--lpf-gray-border);
    padding-right: 16px;
}

.lpf-sub-section {
    margin-bottom: 12px;
}

.lpf-lamination {
    padding-top: 8px;
    border-top: 1px dashed var(--lpf-gray-border);
}

.lpf-vardata-box {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--lpf-gray-border);
    border-radius: var(--lpf-radius);
    padding: 10px 12px;
    margin-bottom: 10px;
}

.lpf-vardata-box .lpf-cb {
    margin-bottom: 6px;
    font-size: 11.5px;
}

.lpf-notes-box label {
    font-size: 15px;
    font-weight: 600;
    color: var(--lpf-text-secondary);
    margin-bottom: 4px;
    display: block;
}

.lpf-notes-box textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--lpf-input-border);
    border-radius: var(--lpf-radius-sm);
    background: var(--lpf-input-bg);
    font-family: var(--lpf-font);
    font-size: 15px;
    color: var(--lpf-text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
    resize: vertical;
    min-height: 60px;
}

.lpf-notes-box textarea:focus {
    border-color: var(--lpf-input-focus);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.2);
}

/* === ΕΠΙΚΟΛΛΗΣΗ Banner === */
.lpf-row-epikolisi {
    padding: 0;
    background: var(--lpf-banner-bg);
}

.lpf-epikolisi-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.lpf-epikolisi-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lpf-epikolisi-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--lpf-white);
    letter-spacing: 1px;
}

.lpf-epikolisi-right {
    font-size: 11.5px;
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.lpf-epikolisi-highlight {
    color: var(--lpf-highlight);
    font-weight: 800;
    text-decoration: underline;
    font-size: 15px;
}

.lpf-epikolisi-note {
    font-style: italic;
}

/* === Step / Gap Row === */
.lpf-row-step {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
    align-items: center;
}

.lpf-row-step .lpf-field label {
    font-size: 15px;
}

.lpf-step-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
}

.lpf-step-diagram img {
    max-height: 150px;
    width: auto;
    opacity: 0.85;
}

/* === Roll Specifications Row === */
.lpf-row-roll {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
    align-items: center;
}

.lpf-roll-line label {
    font-size: 15px;
    font-weight: 500;
    color: var(--lpf-text);
    margin-bottom: 6px;
    display: block;
}

.lpf-roll-details {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.lpf-roll-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    color: var(--lpf-text);
}

.lpf-roll-item label {
    font-size: 15px !important;
    margin-bottom: 0 !important;
    white-space: nowrap;
}

.lpf-roll-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
}

.lpf-roll-diagram img {
    max-height: 90px;
    width: auto;
    opacity: 0.85;
}

/* === Print Direction Row === */
.lpf-row-direction,
.lpf-row-alternating {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    align-items: center;
}

.lpf-direction-label {
    display: flex;
    align-items: center;
}

.lpf-direction-title {
    font-size: 15px;
    font-weight: 800;
    color: var(--lpf-text);
    text-transform: uppercase;
    line-height: 1.4;
    letter-spacing: 0.3px;
}

.lpf-direction-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.lpf-direction-option,
.lpf-alt-option {
    cursor: pointer;
    display: block;
}

.lpf-direction-option input[type="radio"],
.lpf-alt-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.lpf-direction-box,
.lpf-alt-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 6px;
    border: 2px solid var(--lpf-gray-border);
    border-radius: var(--lpf-radius);
    background: rgba(255, 255, 255, 0.04);
    transition: all 0.2s ease;
    text-align: center;
}

.lpf-direction-option input[type="radio"]:checked + .lpf-direction-box,
.lpf-alt-option input[type="radio"]:checked + .lpf-alt-box {
    border-color: var(--lpf-primary-light);
    background: rgba(3, 90, 166, 0.25);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.2);
}

.lpf-direction-option:hover .lpf-direction-box,
.lpf-alt-option:hover .lpf-alt-box {
    border-color: var(--lpf-primary-light);
    background: rgba(3, 90, 166, 0.1);
}

.lpf-direction-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    height: 40px;
    position: relative;
}

.lpf-dir-letter {
    font-size: 22px;
    font-weight: 800;
    color: var(--lpf-white);
    display: inline-block;
    line-height: 1;
}

.lpf-dir-arrow {
    font-size: 20px;
    color: var(--lpf-primary-light);
    font-weight: 700;
    position: absolute;
}

.lpf-dir-arrow.arrow-right {
    right: 2px;
    top: 2px;
}

.lpf-dir-arrow.arrow-left {
    left: 2px;
    top: 2px;
}

.lpf-dir-dot {
    font-size: 16px;
    color: var(--lpf-gray-medium);
    line-height: 1;
}

.lpf-dir-number {
    font-size: 14px;
    font-weight: 700;
    color: var(--lpf-text);
}

/* === Alternating Print === */
.lpf-alternating-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.lpf-alt-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
}

.lpf-alt-text {
    font-size: 18px;
    font-weight: 800;
    color: var(--lpf-white);
    letter-spacing: 1px;
}

.lpf-alt-rotated {
    transform: rotate(180deg);
}

/* === Submit Button === */
.lpf-row-submit {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 28px;
    background: rgba(0, 0, 0, 0.15);
}

.lpf-submit-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 40px;
    background: linear-gradient(135deg, var(--lpf-primary), #0468c2);
    color: var(--lpf-white);
    border: none;
    border-radius: var(--lpf-radius);
    font-family: var(--lpf-font);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(3, 90, 166, 0.4);
    position: relative;
    overflow: hidden;
}

.lpf-submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s ease;
}

.lpf-submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(3, 90, 166, 0.5);
}

.lpf-submit-button:hover::before {
    left: 100%;
}

.lpf-submit-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(3, 90, 166, 0.3);
}

.lpf-submit-button.lpf-loading {
    pointer-events: none;
    opacity: 0.7;
}

.lpf-submit-button.lpf-loading .lpf-btn-text::after {
    content: '...';
    animation: lpf-dots 1.4s infinite;
}

@keyframes lpf-dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

.lpf-btn-icon svg {
    display: block;
}

/* === Form Message === */
.lpf-form-message {
    margin-top: 14px;
    padding: 12px 20px;
    border-radius: var(--lpf-radius);
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    width: 100%;
    max-width: 500px;
    animation: lpf-fadeIn 0.3s ease;
}

.lpf-form-message.lpf-success {
    background: rgba(102, 187, 106, 0.15);
    color: var(--lpf-success);
    border: 1px solid rgba(102, 187, 106, 0.3);
}

.lpf-form-message.lpf-error {
    background: rgba(239, 83, 80, 0.15);
    color: var(--lpf-error);
    border: 1px solid rgba(239, 83, 80, 0.3);
}

@keyframes lpf-fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === Responsive === */
@media (max-width: 768px) {
    #lpf-form-wrapper {
        margin: 16px;
        font-size: 15px;
    }

    .lpf-header {
        flex-direction: column;
        gap: 8px;
        text-align: center;
        padding: 16px 20px;
    }

    .lpf-title-area h1 {
        font-size: 18px;
    }

    .lpf-row {
        padding: 10px 16px;
    }

    .lpf-row-3col {
        grid-template-columns: 1fr;
    }

    .lpf-row-2col {
        grid-template-columns: 1fr;
    }

    .lpf-row-complex {
        grid-template-columns: 1fr;
    }

    .lpf-field-extras,
    .lpf-field-varnish-lam {
        border-right: none;
        border-bottom: 1px solid var(--lpf-gray-border);
        padding-right: 0;
        padding-bottom: 12px;
    }

    .lpf-row-step,
    .lpf-row-roll {
        grid-template-columns: 1fr;
    }

    .lpf-step-diagram,
    .lpf-roll-diagram {
        justify-content: flex-start;
    }

    .lpf-row-direction,
    .lpf-row-alternating {
        grid-template-columns: 1fr;
    }

    .lpf-direction-grid,
    .lpf-alternating-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .lpf-epikolisi-banner {
        flex-direction: column;
        text-align: center;
        padding: 12px 16px;
    }

    .lpf-epikolisi-left {
        flex-direction: column;
        gap: 8px;
    }

    .lpf-epikolisi-right {
        justify-content: center;
    }
}

/* === Print Styles === */
@media print {
    #lpf-form-wrapper {
        box-shadow: none;
        border: 1px solid #ccc;
        margin: 0;
    }

    .lpf-row-submit {
        display: none;
    }
}