/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
    /* Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #DCE3EA;
    --color-bg-tertiary: #F4F6F8;
    --color-text-primary: #0B0F14;
    --color-text-secondary: #121821;
    --color-text-muted: #1B2430;
    
    /* Accent Colors */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-light: rgba(99, 102, 241, 0.1);
    --color-accent: #22d3ee;
    --color-accent-hover: #06b6d4;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Container */
    --container-max-width: 800px;
    --container-padding: var(--spacing-lg);
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   Container
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #4614DA;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link-active {
    color: var(--color-primary);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ============================================
   Form Page
   ============================================ */
.form-page {
    flex: 1;
    padding-top: 120px;
    padding-bottom: var(--spacing-xl);
}

.form-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.form-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.form-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-primary-light);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

.btn-loader {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================
   Search Section
   ============================================ */
.search-section {
    margin-bottom: var(--spacing-xl);
}

.search-container {
    background: var(--color-bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.search-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.search-description {
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.search-form {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.search-input-wrapper {
    flex: 1;
    position: relative;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 48px;
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

/* ============================================
   Status Messages
   ============================================ */
.status-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    animation: fadeIn 0.3s ease;
}

.status-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-message.info {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.status-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.status-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.status-icon-error {
    color: var(--color-error);
}

.status-icon-success {
    color: var(--color-success);
}

.status-icon-info {
    color: var(--color-primary);
}

.status-text {
    color: var(--color-text-primary);
}

/* ============================================
   Store Selection Card
   ============================================ */
.store-selection {
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 0.3s ease;
}

.store-card {
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.2);
}

.store-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.store-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
}

.store-card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.store-card-body {
    margin-bottom: var(--spacing-lg);
}

.store-info-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.store-info-label {
    color: var(--color-text-secondary);
}

.store-info-value {
    font-weight: 600;
    color: var(--color-text-primary);
}

.store-status-pending {
    color: var(--color-warning);
}

.store-card-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* ============================================
   Active Store Indicator
   ============================================ */
.active-store {
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 0.3s ease;
}

.active-store-card {
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.active-store-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.active-store-icon {
    width: 40px;
    height: 40px;
    background: var(--color-success);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
}

.active-store-icon svg {
    width: 20px;
    height: 20px;
}

.active-store-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.active-store-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.active-store-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.active-store-number {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.btn-change-store {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-change-store:hover {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.btn-change-store svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   Main Form
   ============================================ */
.main-form-section {
    animation: fadeIn 0.3s ease;
}

.main-form {
    background: var(--color-bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-section-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-field {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a0a0b0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    background-size: 16px;
    padding-right: 40px;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--color-error);
}

.form-input.success,
.form-select.success,
.form-textarea.success {
    border-color: var(--color-success);
}

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

/* ============================================
   Success Section
   ============================================ */
.success-section {
    padding: var(--spacing-xl) 0;
}

.success-card {
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-success);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xxl);
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--color-success);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-text-primary);
}

.success-icon svg {
    width: 40px;
    height: 40px;
}

.success-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.success-message {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-bg-secondary);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: auto;
}

.footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    :root {
        --container-padding: var(--spacing-md);
        --spacing-xl: 2rem;
        --spacing-xxl: 3rem;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--color-bg-secondary);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition-base);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }

    .hamburger {
        display: flex;
    }

    .form-title {
        font-size: var(--font-size-2xl);
    }

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

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

    .store-card-actions {
        flex-direction: column;
    }

    .active-store-card {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .form-page {
        padding-top: 100px;
    }

    .search-container,
    .main-form,
    .success-card {
        padding: var(--spacing-lg);
    }
}