/* ===============================================
   Modern Sales Data Collection - CSS
   =============================================== */

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

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #0f3460;
    --accent-color: #16213e;
    --success-color: #00d9a3;
    --error-color: #ff6b6b;
    --warning-color: #ffa41b;
    --info-color: #4a90e2;
    --light-bg: #f7f9fc;
    --card-bg: #ffffff;
    --border-color: #e1e8ed;
    --text-color: #2d3748;
    --text-light: #718096;
    --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 10px 40px rgba(0,0,0,0.15);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-attachment: fixed;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.mobile-container {
    max-width: 1100px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===============================================
   Header
   =============================================== */

.mobile-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.mobile-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1) translate(0, 0); }
    50% { transform: scale(1.1) translate(10px, 10px); }
}

.mobile-header h1 {
    font-size: 32px;
    margin-bottom: 8px;
    font-weight: 700;
    position: relative;
    z-index: 1;
    letter-spacing: -0.5px;
}

.mobile-header .subtitle {
    font-size: 16px;
    opacity: 0.9;
    position: relative;
    z-index: 1;
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* ===============================================
   Messages
   =============================================== */

.message {
    padding: 18px 24px;
    margin: 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    font-weight: 500;
    border-left: 4px solid;
}

@keyframes slideIn {
    from { transform: translateY(-30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.success-message {
    background: linear-gradient(135deg, #d4f8e8 0%, #c7f2e1 100%);
    color: #065f46;
    border-left-color: var(--success-color);
}

.error-message {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border-left-color: var(--error-color);
}

.message i {
    font-size: 22px;
    flex-shrink: 0;
}

/* ===============================================
   Form Styles
   =============================================== */

#shopDataForm {
    padding: 40px;
    background: linear-gradient(to bottom, #ffffff 0%, #f7f9fc 100%);
}

/* ===============================================
   Two-Column Form Layout
   =============================================== */

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 35px;
    align-items: start;
}

.form-column {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.form-actions-full {
    grid-column: 1 / -1;
    text-align: center;
    margin-top: 10px;
}

@media (max-width: 768px) {
    body {
        padding: 0;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .form-actions-full {
        margin-top: 20px;
    }
    
    .mobile-container {
        max-width: 100%;
        margin: 0;
        border-radius: 0;
    }
    
    .mobile-header h1 {
        font-size: 26px;
    }
    
    #shopDataForm {
        padding: 24px;
    }
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group {
    margin-bottom: 20px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
    font-size: 15px;
    letter-spacing: -0.2px;
}

.form-label i {
    color: var(--info-color);
    font-size: 16px;
}

.form-label.required::after {
    content: '*';
    color: var(--error-color);
    margin-left: 2px;
    font-size: 16px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    transition: var(--transition);
    font-family: inherit;
    background: white;
    color: var(--text-color);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
    border-color: #cbd5e0;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--info-color);
    box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.15);
    background: white;
    transform: translateY(-1px);
}

.form-textarea {
    resize: vertical;
}

/* ===============================================
   Checkbox Group
   =============================================== */

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    padding: 4px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 14px 16px;
    border-radius: var(--radius);
    transition: var(--transition);
    background: white;
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.checkbox-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--info-color), var(--success-color));
    opacity: 0;
    transition: var(--transition);
}

.checkbox-label:hover {
    border-color: var(--info-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.checkbox-input {
    display: none;
}

.checkbox-input:checked ~ * {
    position: relative;
    z-index: 1;
}

.checkbox-input:checked + .checkbox-mark {
    background: linear-gradient(135deg, var(--info-color), var(--success-color));
    border-color: transparent;
    transform: scale(1.1);
}

.checkbox-input:checked ~ span:last-child {
    color: white;
    font-weight: 600;
}

.checkbox-label:has(.checkbox-input:checked) {
    background: linear-gradient(135deg, var(--info-color), var(--success-color));
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.checkbox-mark {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
    background: white;
}

.checkbox-input:checked + .checkbox-mark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    color: white;
    font-size: 14px;
    font-weight: bold;
    animation: checkmark 0.3s ease;
}

@keyframes checkmark {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 0;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

.checkbox-label span:last-child {
    font-size: 15px;
    color: var(--text-color);
    transition: var(--transition);
    font-weight: 500;
}

/* ===============================================
   Photo Upload
   =============================================== */

.photo-upload-area {
    border: 3px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    background: linear-gradient(135deg, #f7f9fc 0%, #edf2f7 100%);
    position: relative;
}

.photo-upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--info-color), var(--success-color));
    opacity: 0;
    transition: var(--transition);
}

.photo-upload-area:hover {
    border-color: var(--info-color);
    transform: translateY(-2px);
}

.photo-upload-area:hover::before {
    opacity: 0.05;
}

.photo-upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    position: relative;
    z-index: 1;
}

.upload-icon {
    font-size: 56px;
    color: var(--info-color);
    opacity: 0.8;
    transition: var(--transition);
}

.photo-upload-area:hover .upload-icon {
    transform: scale(1.1);
    opacity: 1;
}

.photo-upload-content p {
    font-size: 16px;
    color: var(--text-color);
    margin: 0;
    font-weight: 500;
}

.btn-camera {
    background: linear-gradient(135deg, var(--info-color), #5ba3f5);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-camera::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-camera:hover::before {
    width: 300px;
    height: 300px;
}

.btn-camera:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-camera:active {
    transform: translateY(-1px);
}

.file-input {
    display: none;
}

/* Photo Preview */
.photo-preview {
    position: relative;
}

.photo-preview img {
    width: 100%;
    max-height: 350px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.photo-preview img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.btn-change-photo {
    background: linear-gradient(135deg, var(--warning-color), #ff9100);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0 auto;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(255, 164, 27, 0.3);
}

.btn-change-photo:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 164, 27, 0.4);
}

/* ===============================================
   GPS Status
   =============================================== */

.gps-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-gps {
    background: linear-gradient(135deg, var(--info-color), #5ba3f5);
    color: white;
    border: none;
    padding: 16px 24px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    width: 100%;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-gps::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-gps:hover::before {
    width: 300px;
    height: 300px;
}

.btn-gps:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-gps:active {
    transform: translateY(-1px);
}

.btn-gps:disabled {
    background: linear-gradient(135deg, #cbd5e0, #a0aec0);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.gps-status {
    padding: 16px 20px;
    background: var(--light-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    line-height: 1.5;
}

.gps-status small {
    font-size: 12px;
    opacity: 0.8;
    font-family: 'Courier New', monospace;
}

.gps-status.success {
    background: linear-gradient(135deg, #d4f8e8 0%, #c7f2e1 100%);
    border-color: var(--success-color);
    color: #065f46;
}

.gps-status.error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-color: var(--error-color);
    color: #991b1b;
}

/* ===============================================
   Help Text
   =============================================== */

.help-text {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 400;
}

.help-text i {
    color: var(--info-color);
    font-size: 14px;
}

/* ===============================================
   Submit Button
   =============================================== */

.form-actions,
.form-actions-full {
    margin-top: 30px;
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--success-color) 0%, #00b386 100%);
    color: white;
    border: none;
    padding: 20px;
    border-radius: var(--radius);
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: var(--transition);
    box-shadow: 0 6px 24px rgba(0, 217, 163, 0.35);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-submit:hover::before {
    width: 400px;
    height: 400px;
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 217, 163, 0.45);
}

.btn-submit:active {
    transform: translateY(-1px);
}

.btn-submit:disabled {
    background: linear-gradient(135deg, #cbd5e0, #a0aec0);
    cursor: not-allowed;
    box-shadow: none;
}

.btn-submit:disabled:hover {
    transform: none;
}

/* Loading State */
.btn-submit.loading span {
    display: none;
}

.btn-submit.loading::after {
    content: 'Submitting...';
}

.btn-submit.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===============================================
   Stats Footer
   =============================================== */

.stats-footer {
    margin-top: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f7f9fc 0%, #edf2f7 100%);
    border-radius: var(--radius);
    text-align: center;
    border: 2px solid var(--border-color);
}

.stats-footer p {
    margin: 0;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
}

.stats-footer i {
    color: var(--success-color);
    font-size: 18px;
}

.stats-footer span {
    color: var(--info-color);
    font-size: 20px;
    font-weight: 700;
}

/* ===============================================
   Admin Link
   =============================================== */

.admin-link {
    padding: 20px;
    text-align: center;
    background: linear-gradient(135deg, #f7f9fc 0%, #edf2f7 100%);
    border-top: 2px solid var(--border-color);
}

.admin-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    padding: 12px 24px;
    border-radius: var(--radius);
    background: white;
    box-shadow: var(--shadow-sm);
}

.admin-link a:hover {
    color: var(--info-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.admin-link a i {
    font-size: 16px;
}

/* ===============================================
   Responsive Design
   =============================================== */

@media (max-width: 480px) {
    body {
        padding: 0;
    }
    
    .mobile-container {
        border-radius: 0;
        min-height: 100vh;
    }
    
    .mobile-header {
        padding: 30px 20px;
    }
    
    .mobile-header h1 {
        font-size: 22px;
    }
    
    .mobile-header .subtitle {
        font-size: 14px;
    }
    
    #shopDataForm {
        padding: 20px;
    }
    
    .form-column {
        gap: 20px;
    }
    
    .btn-submit {
        font-size: 16px;
        padding: 18px;
    }
    
    .checkbox-label {
        padding: 12px;
    }
}

/* ===============================================
   Smooth Scrolling
   =============================================== */

html {
    scroll-behavior: smooth;
}

/* ===============================================
   Focus Visible (Accessibility)
   =============================================== */

*:focus-visible {
    outline: 3px solid var(--info-color);
    outline-offset: 2px;
}

/* ===============================================
   Loading States
   =============================================== */

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading-shimmer {
    animation: shimmer 2s infinite;
    background: linear-gradient(to right, #f6f7f8 0%, #edeef1 20%, #f6f7f8 40%, #f6f7f8 100%);
    background-size: 1000px 100%;
}

/* ===============================================
   Loading Overlay
   =============================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.loading-spinner i {
    font-size: 48px;
    color: var(--info-color);
    animation: spin 1s linear infinite;
}

.loading-spinner p {
    margin-top: 20px;
    font-size: 16px;
    color: var(--text-color);
    font-weight: 600;
}