/* ===================================
   ESTIMATION TOOL - PREMIUM DESIGN
   Monochrome: Black, White, Grey
   =================================== */

:root {
    --color-primary: #000000;
    --color-bg: #ffffff;
    --color-bg-light: #f5f5f5;
    --color-border: #e0e0e0;
    --color-text: #000000;
    --color-text-secondary: #666666;
    --color-text-light: #999999;
    --color-accent: #1a1a1a;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===================================
   MAIN WRAPPER & CONTAINER
   =================================== */

.estimation-tool-wrapper {
    width: 100%;
    background: var(--color-bg-light);
    padding: var(--spacing-lg) var(--spacing-md);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
}

.estimation-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--color-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

/* ===================================
   PROGRESS INDICATOR
   =================================== */

.progress-indicator {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--color-primary);
    transition: width 0.4s ease;
}

.step-counter {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-align: center;
}

.step-counter .current-step {
    color: var(--color-primary);
    font-weight: 600;
}

/* ===================================
   ESTIMATION CONTENT
   =================================== */

.estimation-content {
    padding: var(--spacing-xl) var(--spacing-lg);
    min-height: 400px;
}

.estimation-step {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-header {
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.step-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.step-header p {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.btn-back {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    margin: -var(--spacing-sm);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-back:hover {
    color: var(--color-primary);
}

/* ===================================
   BUTTONS
   =================================== */

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    border: 2px solid var(--color-primary);
    padding: 12px 32px;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    margin-top: var(--spacing-xl);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-primary);
    border: 2px solid var(--color-border);
    padding: 12px 32px;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* ===================================
   STEP 0: SERVICE SELECTION
   =================================== */

.services-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.service-option {
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--color-bg);
}

.service-option:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.service-option.selected {
    border-color: var(--color-primary);
    border-width: 2px;
    background: var(--color-bg-light);
}

.option-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-light);
    border-radius: var(--border-radius-lg);
}

.option-icon svg {
    width: 80px;
    height: 80px;
    stroke: var(--color-primary);
}

.service-option h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.service-option p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ===================================
   KITCHEN LAYOUT SECTION
   =================================== */

.layout-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.layout-card {
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.layout-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.layout-card.selected {
    border-color: var(--color-primary);
    border-width: 2px;
    background: var(--color-bg-light);
}

.layout-diagram {
    width: 100%;
    height: 140px;
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* Kitchen Layout Diagrams */
.l-shaped-diagram::before {
    content: '';
    display: block;
    width: 70%;
    height: 50%;
    border-top: none !important;
    border-right: none !important;
    border: 25px solid var(--color-primary);
    position: relative;
}

.straight-diagram::before {
    content: '';
    display: block;
    width: 70%;
    height: 50%;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
    border: 25px solid var(--color-primary);
}

.u-shaped-diagram::before {
    content: '';
    display: block;
    width: 70%;
    height: 50%;
    border-top: none !important;
    border: 25px solid var(--color-primary);
    border-top: none;
}

.parallel-diagram::before {
    content: '';
    display: block;
    width: 70%;
    height: 50%;
    border-top: none !important;
    border-bottom: none !important;
    border: 25px solid var(--color-primary);
}

.layout-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.layout-card p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* ===================================
   MEASUREMENTS SECTION
   =================================== */

.measurements-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.layout-measurements {
    display: flex;
    align-items: stretch;
}

.measurement-diagram {
    flex: 0 0 50%;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.measurement-diagram svg {
    max-width: 100%;
    height: auto;
}

.measurement-inputs {
    flex: 0 0 50%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
}

.helper-text {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--color-primary);
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.input-group input,
.input-group select {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--color-primary);
    background: var(--color-bg);
    transition: var(--transition);
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.input-group small {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

/* ===================================
   WARDROBE SECTION
   =================================== */

.wardrobe-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.wardrobe-card {
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.wardrobe-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.wardrobe-card.selected {
    border-color: var(--color-primary);
    border-width: 2px;
    background: var(--color-bg-light);
}

.wardrobe-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-light);
    border-radius: var(--border-radius-lg);
}

.wardrobe-icon svg {
    width: 50px;
    height: 50px;
    stroke: var(--color-primary);
}

.wardrobe-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.wardrobe-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.wardrobe-size-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* ===================================
   PACKAGE SELECTION
   =================================== */

.package-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.package-card {
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: var(--transition);
    background: var(--color-bg);
}

.package-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.package-card.selected {
    border-color: var(--color-primary);
    border-width: 2px;
    background: var(--color-bg-light);
}

.package-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.package-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.features {
    list-style: none;
}

.features li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
}

.features li::before {
    content: '✓';
    display: inline-block;
    width: 20px;
    color: var(--color-primary);
    font-weight: bold;
    margin-right: var(--spacing-sm);
}

/* ===================================
   USER DETAILS FORM
   =================================== */

.details-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.phone-input {
    display: flex;
    gap: var(--spacing-sm);
}

.country-code {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-weight: 600;
    color: var(--color-primary);
    border-right: none;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.form-group input[type="tel"] {
    flex: 1;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.terms-info {
    padding: var(--spacing-md);
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--color-primary);
}

.terms-info p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.form-actions .btn-back {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    padding: 12px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    flex: 0;
}

.form-actions .btn-back:hover {
    border-color: var(--color-primary);
    background: var(--color-bg);
}

.form-actions .btn-primary {
    flex: 1;
    margin-top: 0;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
    .estimation-tool-wrapper {
        padding: var(--spacing-md);
    }

    .estimation-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .step-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .step-header h2 {
        font-size: 1.4rem;
    }

    .layout-measurements {
        flex-direction: column;
    }

    .measurement-diagram {
        flex: 0 0 100%;
    }

    .measurement-inputs {
        flex: 0 0 100%;
    }

    .layout-options,
    .wardrobe-options,
    .package-options {
        grid-template-columns: 1fr;
    }

    .services-selection {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn-back {
        width: 100%;
    }
}

@media (max-width: 480px) {

    .estimation-container {
        border-radius: 0;
    }

    .step-header h2 {
        font-size: 1.2rem;
    }

    .estimation-content {
        padding: var(--spacing-md);
    }

    .u-shaped .line-bottom,
    .u-shaped .measure-b {
        width: 176px !important;
    }

    .input-group input,
    .input-group select {
        font-size: 16px;
        /* Prevent zoom on iOS */
    }

    .phone-input {
        flex-direction: column;
    }

    .country-code {
        border-radius: var(--border-radius);
        border-right: 1px solid var(--color-border);
        border-bottom-right-radius: var(--border-radius);
        border-top-right-radius: var(--border-radius);
    }

    .form-group input[type="tel"] {
        border-radius: var(--border-radius);
        height: 20px;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.error {
    color: #d32f2f;
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
}

.success-message {
    padding: var(--spacing-md);
    background: #f0f7f0;
    border-left: 3px solid #2e7d32;
    border-radius: var(--border-radius);
    color: #2e7d32;
    margin-bottom: var(--spacing-lg);
}

/* ===================================
   STEP K2 - KITCHEN MEASUREMENTS ONLY
=================================== */

/* Diagram Container */
.measurement-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
}

.measurement-diagram .layout-diagram {
    position: relative;
    width: 240px;
    height: 170px;
}

/* ================= WALL STRUCTURE ================= */
.line {
    position: absolute;
    background: #000;
}

/* -------- U SHAPED -------- */
.u-shaped .line-left {
    left: 20px;
    top: 10px;
    width: 40px;
    height: 140px;
}

.u-shaped .line-bottom {
    left: 20px;
    bottom: 10px;
    width: 200px;
    height: 40px;
}

.u-shaped .line-right {
    right: 20px;
    top: 10px;
    width: 40px;
    height: 140px;
}

/* -------- L SHAPED -------- */
.l-shaped .line-left {
    left: 20px;
    top: 10px;
    width: 40px;
    height: 140px;
}

.l-shaped .line-bottom {
    left: 20px;
    bottom: 10px;
    width: 130px;
    height: 40px;
}

.l-shaped .line-right {
    display: none;
}

/* -------- STRAIGHT -------- */
.straight .line-bottom {
    left: 20px;
    bottom: 10px;
    width: 200px;
    height: 40px;
}

.straight .line-left,
.straight .line-right {
    display: none;
}

/* -------- PARALLEL -------- */
.parallel .line-left {
    left: 50px;
    top: 10px;
    width: 40px;
    height: 140px;
}

.parallel .line-right {
    right: 50px;
    top: 10px;
    width: 40px;
    height: 140px;
}

.parallel .line-bottom {
    display: none;
}

/* ================= DOTTED MEASURE LINE ================= */
.measure {
    position: absolute;
}

/* Horizontal */
.measure-h {
    border-top: 2px dotted #000;
}

/* Vertical */
.measure-v {
    border-left: 2px dotted #000;
}

/* ================= DOUBLE ARROWS ================= */
.measure::before,
.measure::after {
    content: '';
    position: absolute;
}

/* Horizontal arrows */
.measure-h::before {
    left: -2px;
    top: -5px;
    border-right: 6px solid #000;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
}

.measure-h::after {
    right: -2px;
    top: -5px;
    border-left: 6px solid #000;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
}

/* Vertical arrows */
.measure-v::before {
    top: -2px;
    left: -5px;
    border-bottom: 6px solid #000;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
}

.measure-v::after {
    bottom: -2px;
    left: -5px;
    border-top: 6px solid #000;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
}

/* ================= POSITIONING ================= */

/* U SHAPE */
.u-shaped .measure-a {
    left: 10px;
    top: 10px;
    height: 140px;
}

.u-shaped .measure-b {
    left: 20px;
    bottom: 0;
    width: 200px;
}

.u-shaped .measure-c {
    right: 10px;
    top: 10px;
    height: 140px;
}

/* L SHAPE */
.l-shaped .measure-a {
    left: 10px;
    top: 10px;
    height: 140px;
}

.l-shaped .measure-b {
    left: 20px;
    bottom: 0;
    width: 130px;
}

/* STRAIGHT */
.straight .measure-a {
    left: 20px;
    bottom: 0;
    width: 200px;
}

/* PARALLEL */
.parallel .measure-a {
    left: 40px;
    top: 10px;
    height: 140px;
}

.parallel .measure-b {
    right: 40px;
    top: 10px;
    height: 140px;
}

/* ================= LABELS ================= */
.label {
    position: absolute;
    font-weight: 600;
    padding: 2px 6px;
}

/* U */
.u-shaped .label-a {
    left: -12px;
    top: 50%;
}

.u-shaped .label-b {
    left: 50%;
    bottom: -21px;
    transform: translateX(-50%);
}

.u-shaped .label-c {
    right: -8px;
    top: 50%;
}

/* L */
.l-shaped .label-a {
    left: -10px;
    top: 45%;
}

.l-shaped .label-b {
    left: 31%;
    bottom: -20px;
}

/* STRAIGHT */
.straight .label-a {
    left: 50%;
    bottom: -20px;
    transform: translateX(-50%);
}

/* PARALLEL */
.parallel .label-a {
    left: 20px;
    top: 42%;
}

.parallel .label-b {
    right: 20px;
    top: 42%;
}