/* ============================
   BUILDING CONTRACTOR DASHBOARD
   Mobile-First | Tamil Nadu
   ============================ */

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

:root {
    /* Colors - High Contrast for Outdoor Use */
    --red: #DC2626;
    --red-light: #FEE2E2;
    --yellow: #F59E0B;
    --yellow-light: #FEF3C7;
    --green: #16A34A;
    --green-light: #DCFCE7;
    --blue: #2563EB;
    --blue-light: #DBEAFE;
    
    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-500: #6B7280;
    --gray-700: #374151;
    --gray-900: #111827;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    
    /* Touch Target Minimum */
    --touch-min: 48px;
}

body {
    font-family: 'Segoe UI', Roboto, -apple-system, sans-serif;
    background: var(--gray-100);
    color: var(--gray-900);
    font-size: 16px;
    line-height: 1.5;
    min-height: 100vh;
}

/* ============================
   HEADER
   ============================ */
.header {
    background: var(--blue);
    color: var(--white);
    padding: var(--space-md);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.header h1 {
    font-size: 18px;
    font-weight: 600;
    text-align: center;
}

.header-subtitle {
    font-size: 12px;
    text-align: center;
    opacity: 0.9;
    margin-top: 2px;
}

/* ============================
   NAVIGATION TABS
   ============================ */
.nav-tabs {
    display: flex;
    background: var(--white);
    overflow-x: auto;
    border-bottom: 1px solid var(--gray-200);
    -webkit-overflow-scrolling: touch;
}

.nav-tab {
    flex: 0 0 auto;
    padding: var(--space-md);
    min-height: var(--touch-min);
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--gray-500);
    cursor: pointer;
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.nav-tab.active {
    color: var(--blue);
    border-bottom-color: var(--blue);
    font-weight: 600;
}

.nav-tab:hover {
    background: var(--gray-50);
}

/* ============================
   SCREENS CONTAINER
   ============================ */
.screen {
    display: none;
    padding: var(--space-md);
    padding-bottom: 80px;
}

.screen.active {
    display: block;
}

/* ============================
   CARDS
   ============================ */
.card {
    background: var(--white);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.card-title .icon {
    font-size: 20px;
}

/* ============================
   ALERT CARDS (Red/Yellow)
   ============================ */
.card-alert {
    background: var(--red-light);
    border-left: 4px solid var(--red);
}

.card-alert .card-title {
    color: var(--red);
}

.card-warning {
    background: var(--yellow-light);
    border-left: 4px solid var(--yellow);
}

.card-warning .card-title {
    color: var(--yellow);
}

.card-success {
    background: var(--green-light);
    border-left: 4px solid var(--green);
}

/* ============================
   STATS DISPLAY
   ============================ */
.stat-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.stat-label {
    color: var(--gray-500);
    font-size: 14px;
}

.stat-value {
    font-weight: 700;
    font-size: 16px;
}

.stat-value.red { color: var(--red); }
.stat-value.green { color: var(--green); }
.stat-value.yellow { color: var(--yellow); }

.big-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
}

.big-number.red { color: var(--red); }

/* ============================
   SITE CARDS
   ============================ */
.site-card {
    background: var(--white);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.1s;
}

.site-card:active {
    transform: scale(0.98);
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-sm);
}

.site-name {
    font-size: 16px;
    font-weight: 700;
}

.site-location {
    font-size: 12px;
    color: var(--gray-500);
}

.site-stage {
    display: inline-block;
    padding: 4px 10px;
    background: var(--blue-light);
    color: var(--blue);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.site-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--gray-100);
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.status-dot.running { background: var(--green); }
.status-dot.stopped { background: var(--red); }
.status-dot.warning { background: var(--yellow); }

.status-text {
    font-size: 14px;
    flex: 1;
}

.status-time {
    font-size: 12px;
    color: var(--gray-500);
}

.site-issue {
    background: var(--red-light);
    color: var(--red);
    padding: var(--space-sm);
    border-radius: 8px;
    font-size: 13px;
    margin-top: var(--space-sm);
}

/* ============================
   BUTTONS
   ============================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    min-height: var(--touch-min);
    padding: var(--space-sm) var(--space-md);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--blue);
    color: var(--white);
}

.btn-primary:hover {
    background: #1D4ED8;
}

.btn-outline {
    background: var(--white);
    border: 2px solid var(--gray-200);
    color: var(--gray-700);
}

.btn-success {
    background: var(--green);
    color: var(--white);
}

.btn-danger {
    background: var(--red);
    color: var(--white);
}

.btn-block {
    width: 100%;
}

.btn-row {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.btn-row .btn {
    flex: 1;
}

/* ============================
   PAYMENT CARDS
   ============================ */
.payment-card {
    background: var(--white);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.payment-header {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--gray-200);
}

.payment-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
}

.payment-label {
    color: var(--gray-500);
}

.payment-value {
    font-weight: 700;
}

.payment-pending {
    background: var(--red-light);
    border-radius: 8px;
    padding: var(--space-md);
    margin-top: var(--space-md);
}

.payment-pending .label {
    color: var(--red);
    font-size: 14px;
}

.payment-pending .amount {
    font-size: 24px;
    font-weight: 700;
    color: var(--red);
}

.next-payment {
    background: var(--gray-50);
    border-radius: 8px;
    padding: var(--space-md);
    margin-top: var(--space-md);
}

.next-payment .label {
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.next-payment .info {
    font-weight: 600;
}

/* ============================
   FORM ELEMENTS
   ============================ */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    min-height: var(--touch-min);
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--blue);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

/* Radio Options (Large Touch Target) */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.radio-option {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    cursor: pointer;
    min-height: var(--touch-min);
    transition: all 0.2s;
}

.radio-option:hover {
    border-color: var(--blue);
}

.radio-option.selected {
    border-color: var(--blue);
    background: var(--blue-light);
}

.radio-option input {
    display: none;
}

.radio-circle {
    width: 24px;
    height: 24px;
    border: 2px solid var(--gray-300);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.radio-option.selected .radio-circle {
    border-color: var(--blue);
    background: var(--blue);
}

.radio-option.selected .radio-circle::after {
    content: '✓';
    color: white;
    font-size: 14px;
}

.radio-text {
    flex: 1;
    font-size: 16px;
}

/* Number Input with +/- */
.number-input {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.number-btn {
    width: var(--touch-min);
    height: var(--touch-min);
    border: 2px solid var(--gray-200);
    background: var(--white);
    border-radius: 8px;
    font-size: 24px;
    cursor: pointer;
}

.number-btn:active {
    background: var(--gray-100);
}

.number-value {
    width: 60px;
    text-align: center;
    font-size: 20px;
    font-weight: 700;
}

/* ============================
   MATERIAL LOG
   ============================ */
.log-entry {
    background: var(--white);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.log-date {
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: var(--space-sm);
}

.log-item {
    font-weight: 700;
    font-size: 16px;
    margin-bottom: var(--space-sm);
}

.log-detail {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 14px;
}

.log-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.log-status.complete {
    background: var(--green-light);
    color: var(--green);
}

.log-status.pending {
    background: var(--yellow-light);
    color: var(--yellow);
}

/* ============================
   INSTRUCTIONS LOG
   ============================ */
.instruction-entry {
    background: var(--white);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border-left: 4px solid var(--blue);
}

.instruction-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: var(--space-sm);
}

.instruction-source {
    font-weight: 600;
    color: var(--blue);
}

.instruction-text {
    font-size: 15px;
    color: var(--gray-900);
}

.instruction-note {
    background: var(--gray-50);
    padding: var(--space-sm);
    border-radius: 6px;
    margin-top: var(--space-sm);
    font-size: 13px;
    color: var(--gray-500);
}

/* ============================
   ISSUE LIST
   ============================ */
.issue-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--gray-100);
}

.issue-item:last-child {
    border-bottom: none;
}

.issue-icon {
    color: var(--red);
    font-size: 16px;
}

.issue-text {
    flex: 1;
    font-size: 14px;
}

.issue-site {
    font-size: 12px;
    color: var(--gray-500);
}

/* ============================
   STEPPER (Staff Update Flow)
   ============================ */
.stepper {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.step-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-200);
}

.step-dot.active {
    background: var(--blue);
}

.step-dot.done {
    background: var(--green);
}

.step-content {
    display: none;
}

.step-content.active {
    display: block;
}

.step-title {
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-lg);
}

/* ============================
   PHOTO UPLOAD
   ============================ */
.photo-upload {
    border: 2px dashed var(--gray-300);
    border-radius: 12px;
    padding: var(--space-xl);
    text-align: center;
    cursor: pointer;
}

.photo-upload:hover {
    border-color: var(--blue);
    background: var(--blue-light);
}

.photo-upload .icon {
    font-size: 48px;
    margin-bottom: var(--space-sm);
}

.photo-preview {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.photo-thumb {
    width: 80px;
    height: 80px;
    background: var(--gray-200);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--gray-500);
}

/* ============================
   MODE TOGGLE (Owner/Staff)
   ============================ */
.mode-toggle {
    display: flex;
    background: var(--gray-200);
    border-radius: 8px;
    padding: 4px;
    margin: var(--space-md);
}

.mode-btn {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.mode-btn.active {
    background: var(--white);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* ============================
   EMPTY STATE
   ============================ */
.empty-state {
    text-align: center;
    padding: var(--space-xl);
    color: var(--gray-500);
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: var(--space-md);
}

/* ============================
   UTILITY CLASSES
   ============================ */
.text-center { text-align: center; }
.text-red { color: var(--red); }
.text-green { color: var(--green); }
.text-muted { color: var(--gray-500); }
.mt-md { margin-top: var(--space-md); }
.mb-md { margin-bottom: var(--space-md); }

/* ============================
   RESPONSIVE (Larger Phones)
   ============================ */
@media (min-width: 400px) {
    .card {
        padding: var(--space-lg);
    }
    
    .site-card {
        padding: var(--space-lg);
    }
}