/* =====================================================
 * 살롱페이 v2.0 - iOS Style Design
 * Inspired by Apple iOS Human Interface Guidelines
 * Clean, Minimal, Elegant
 * =====================================================
 */

/* ===== CSS Variables - iOS Style ===== */
:root {
    /* Brand Colors - Mango Theme */
    --mango-primary: #F5A623;
    --mango-light: #FFD93D;
    --mango-dark: #E8920D;

    /* iOS System Colors */
    --ios-blue: #007AFF;
    --ios-green: #34C759;
    --ios-red: #FF3B30;
    --ios-orange: #FF9500;
    --ios-yellow: #FFCC00;
    --ios-purple: #AF52DE;
    --ios-pink: #FF2D55;
    --ios-teal: #5AC8FA;

    /* Grayscale */
    --ios-black: #000000;
    --ios-gray-1: #8E8E93;
    --ios-gray-2: #AEAEB2;
    --ios-gray-3: #C7C7CC;
    --ios-gray-4: #D1D1D6;
    --ios-gray-5: #E5E5EA;
    --ios-gray-6: #F2F2F7;
    --ios-white: #FFFFFF;

    /* Background */
    --bg-primary: #F2F2F7;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F9F9F9;

    /* Text */
    --text-primary: #000000;
    --text-secondary: #3C3C43;
    --text-tertiary: #8E8E93;
    --text-quaternary: #C7C7CC;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);

    /* Border Radius - iOS Style */
    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Font */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'Segoe UI', sans-serif;

    /* Blur */
    --blur-amount: 20px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== Typography - iOS Style ===== */
h1 { font-size: 34px; font-weight: 700; letter-spacing: -0.4px; }
h2 { font-size: 28px; font-weight: 700; letter-spacing: -0.4px; }
h3 { font-size: 22px; font-weight: 600; letter-spacing: -0.3px; }
h4 { font-size: 20px; font-weight: 600; letter-spacing: -0.2px; }

.text-headline { font-size: 17px; font-weight: 600; letter-spacing: -0.4px; }
.text-body { font-size: 17px; font-weight: 400; letter-spacing: -0.4px; }
.text-callout { font-size: 16px; font-weight: 400; letter-spacing: -0.3px; }
.text-subhead { font-size: 15px; font-weight: 400; letter-spacing: -0.2px; }
.text-footnote { font-size: 13px; font-weight: 400; letter-spacing: -0.1px; }
.text-caption { font-size: 12px; font-weight: 400; }

/* ===== App Container ===== */
.app-container {
    width: 100%;
    min-height: 100vh;
    background: var(--bg-primary);
}

/* ===== Screen Management ===== */
.screen {
    display: none;
    min-height: 100vh;
    animation: fadeIn 0.3s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =====================================================
   MAIN SCREEN - iOS Style
   ===================================================== */
.main-screen {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-xl);
    min-height: 100vh;
    background: #FFFFFF;
    position: relative;
}

.main-screen.active {
    display: flex;
}

.main-logo {
    margin-bottom: var(--space-2xl);
    text-align: center;
}

.main-logo .logo-image {
    width: 120px;
    height: auto;
    margin-bottom: var(--space-md);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.main-logo h1 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    letter-spacing: -1px;
}

.main-logo p {
    font-size: 17px;
    color: var(--text-tertiary);
    font-weight: 400;
}

.main-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    width: 100%;
    max-width: 340px;
}

/* Language Switcher */
.lang-switcher {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    display: flex;
    gap: var(--space-xs);
    z-index: 10;
}

.lang-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-secondary);
    border-radius: var(--radius-xs);
    font-size: 20px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: var(--shadow-sm);
}

.lang-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.lang-btn:active {
    transform: scale(0.95);
}

.main-btn {
    display: flex;
    align-items: center;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 3px solid var(--mango-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
}

.main-btn:active {
    transform: scale(0.98);
    border-color: var(--mango-dark);
}

.main-btn-customer {
    background: var(--bg-secondary);
}

.main-btn-admin {
    background: var(--bg-secondary);
}

.main-btn .btn-icon {
    width: 135px;
    height: 135px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-md);
    flex-shrink: 0;
    overflow: hidden;
}

.main-btn .btn-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.main-btn-customer .btn-icon {
    background: transparent;
}

.main-btn-admin .btn-icon {
    background: transparent;
}

.main-btn-text {
    text-align: left;
}

.main-btn-customer .btn-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.main-btn-customer .btn-subtitle {
    font-size: 14px;
    color: var(--text-tertiary);
}

.main-btn-admin .btn-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.main-btn-admin .btn-subtitle {
    font-size: 14px;
    color: var(--text-tertiary);
}

.main-btn .btn-arrow {
    margin-left: auto;
    font-size: 20px;
    opacity: 0.4;
}

.main-btn-customer .btn-arrow {
    color: var(--text-tertiary);
}

.main-btn-admin .btn-arrow {
    color: var(--text-tertiary);
}

/* =====================================================
   iOS HEADER
   ===================================================== */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    min-height: 56px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-bottom: 0.5px solid rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-back {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--space-sm) var(--space-sm);
    margin-left: -8px;
    border: none;
    background: transparent;
    color: var(--mango-primary);
    font-size: 17px;
    font-weight: 400;
    cursor: pointer;
    font-family: inherit;
}

.header-back::before {
    content: '‹';
    font-size: 28px;
    font-weight: 300;
    line-height: 1;
    margin-top: -2px;
}

.header-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-action {
    width: 60px;
    text-align: right;
}

/* =====================================================
   LOGIN SCREEN - iOS Style
   ===================================================== */
.login-screen {
    padding: var(--space-2xl) var(--space-lg);
    display: none;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-primary);
}

.login-screen.active {
    display: flex;
}

.login-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
    margin-top: var(--space-xl);
}

.login-header h2 {
    font-size: 34px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.5px;
}

.login-header p {
    font-size: 17px;
    color: var(--text-tertiary);
}

.login-form {
    width: 100%;
    max-width: 360px;
}

.input-group {
    margin-bottom: var(--space-lg);
}

.input-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-tertiary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding-left: var(--space-md);
}

.input-group input {
    width: 100%;
    padding: var(--space-md) var(--space-md);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 17px;
    font-family: inherit;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.2s;
    text-align: center;
    letter-spacing: 1px;
}

.input-group input:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.2);
}

.input-group input::placeholder {
    color: var(--text-quaternary);
    letter-spacing: 0;
}

.btn-primary {
    width: 100%;
    padding: var(--space-md);
    background: var(--mango-primary);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--ios-white);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-primary:hover {
    background: var(--mango-dark);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    width: 100%;
    padding: var(--space-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--mango-primary);
    font-size: 17px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    margin-top: var(--space-sm);
}

.btn-secondary:active {
    background: var(--ios-gray-6);
}

/* =====================================================
   CUSTOMER DASHBOARD - iOS Style
   ===================================================== */
.customer-dashboard {
    padding-bottom: var(--space-xl);
    background: var(--bg-primary);
}

/* Welcome Character Image */
.welcome-character {
    display: flex;
    justify-content: center;
    padding: var(--space-md) var(--space-md) 0;
}

.welcome-character img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.balance-card {
    margin: var(--space-md);
    padding: var(--space-lg);
    background: linear-gradient(135deg, #F5A623 0%, #E8920D 100%);
    border-radius: var(--radius-lg);
    color: var(--ios-white);
}

.balance-card .customer-name {
    font-size: 17px;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 2px;
}

.balance-card .customer-phone {
    font-size: 15px;
    opacity: 0.7;
    margin-bottom: var(--space-lg);
}

.balance-card .balance-label {
    font-size: 13px;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.balance-card .balance-amount {
    font-size: 44px;
    font-weight: 700;
    letter-spacing: -2px;
    display: flex;
    align-items: baseline;
}

.balance-card .balance-amount span {
    font-size: 24px;
    font-weight: 500;
    margin-left: 4px;
}

/* iOS Card Group */
.card-group {
    margin: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin: var(--space-md);
    gap: var(--space-sm);
}

.info-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
}

.info-card .card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-sm);
}

.info-card .card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.info-card .card-label {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-xs);
}

.info-card .card-value {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
}

.info-card .card-value span {
    font-size: 15px;
    font-weight: 400;
    color: var(--text-tertiary);
}

/* Service Categories */
.service-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin: var(--space-md);
    gap: var(--space-sm);
}

.service-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    text-align: center;
    transition: transform 0.2s ease;
}

.service-card:active {
    transform: scale(0.95);
}

.service-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-sm);
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.service-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* ===== Section - iOS Style ===== */
.section {
    margin: var(--space-lg) var(--space-md);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
    padding: 0 var(--space-xs);
}

.section-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.section-link {
    font-size: 17px;
    color: var(--mango-primary);
    text-decoration: none;
    font-weight: 400;
}

/* ===== iOS List ===== */
.ios-list {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.ios-list-item {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    min-height: 56px;
    border-bottom: 0.5px solid var(--ios-gray-5);
    transition: background 0.15s;
}

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

.ios-list-item:active {
    background: var(--ios-gray-6);
}

/* History List */
.history-list {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.history-item {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    min-height: 64px;
    border-bottom: 0.5px solid var(--ios-gray-5);
}

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

.history-icon {
    width: 108px;
    height: 108px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-md);
    flex-shrink: 0;
    background: var(--ios-gray-6);
}

.history-icon img {
    width: 90px;
    height: 90px;
    object-fit: contain;
}

.history-info {
    flex: 1;
    min-width: 0;
}

.history-service {
    font-size: 17px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.history-date {
    font-size: 15px;
    color: var(--text-tertiary);
}

.history-amount {
    text-align: right;
}

.history-points {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 2px;
}

.history-points.earn {
    color: var(--ios-green);
}

.history-points.use {
    color: var(--mango-dark);
}

.history-price {
    font-size: 13px;
    color: var(--text-tertiary);
}

.empty-state {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    color: var(--text-tertiary);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

/* =====================================================
   ADMIN DASHBOARD - iOS Style
   ===================================================== */
.admin-dashboard {
    padding-bottom: var(--space-2xl);
    background: var(--bg-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    padding: var(--space-md);
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    text-align: center;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--mango-primary);
    margin-bottom: var(--space-xs);
    letter-spacing: -1px;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* iOS Search Bar */
.search-bar {
    padding: 0 var(--space-md);
    margin-bottom: var(--space-md);
}

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

.search-input-wrapper input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    padding-left: 36px;
    border: none;
    border-radius: var(--radius-xs);
    font-size: 17px;
    font-family: inherit;
    background: rgba(142, 142, 147, 0.12);
    color: var(--text-primary);
}

.search-input-wrapper input:focus {
    outline: none;
}

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

.search-input-wrapper .search-icon {
    position: absolute;
    left: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    color: var(--text-tertiary);
}

/* iOS Segmented Control (Tabs) */
.tabs {
    display: flex;
    padding: 0 var(--space-md);
    margin-bottom: var(--space-md);
}

.tabs-inner {
    display: flex;
    background: rgba(142, 142, 147, 0.12);
    border-radius: var(--radius-xs);
    padding: 2px;
    width: 100%;
}

.tab-btn {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: transparent;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.tab-btn.active {
    background: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

/* Customer List - iOS Style */
.customer-list {
    padding: 0 var(--space-md);
}

.customer-card {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s;
}

.customer-card:active {
    background: var(--ios-gray-6);
    transform: scale(0.99);
}

.customer-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #F5A623 0%, #E8920D 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ios-white);
    font-size: 17px;
    font-weight: 600;
    margin-right: var(--space-sm);
    flex-shrink: 0;
}

.customer-info {
    flex: 1;
    min-width: 0;
}

.customer-card .customer-name {
    font-size: 17px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.customer-card .customer-phone {
    font-size: 15px;
    color: var(--text-tertiary);
}

.customer-meta {
    text-align: right;
}

.customer-points {
    font-size: 17px;
    font-weight: 500;
    color: var(--mango-primary);
    margin-bottom: 2px;
}

.customer-visits {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* Birthday Header with Character */
.birthday-header {
    display: flex;
    justify-content: center;
    padding: var(--space-lg) var(--space-md) var(--space-md);
}

.birthday-character {
    width: 140px;
    height: 140px;
    object-fit: contain;
}

/* Birthday List */
.birthday-list {
    padding: 0 var(--space-md);
}

.birthday-card {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--ios-pink);
}

.birthday-icon {
    width: 40px;
    height: 40px;
    margin-right: var(--space-sm);
    flex-shrink: 0;
}

.birthday-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.birthday-info {
    flex: 1;
}

.birthday-name {
    font-size: 17px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.birthday-date {
    font-size: 15px;
    color: var(--text-tertiary);
}

.birthday-badge {
    padding: var(--space-xs) var(--space-sm);
    background: var(--ios-pink);
    border-radius: var(--radius-full);
    color: var(--ios-white);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}

/* Analysis Cards */
.analysis-cards {
    padding: 0 var(--space-md);
}

.analysis-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
}

.analysis-card .card-title {
    font-size: 13px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-sm);
}

.analysis-card .card-value {
    font-size: 34px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -1px;
    margin-bottom: var(--space-xs);
}

.analysis-card .card-desc {
    font-size: 15px;
    color: var(--text-tertiary);
}

.progress-bar {
    height: 6px;
    background: var(--ios-gray-5);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: var(--space-md);
}

.progress-fill {
    height: 100%;
    background: var(--mango-primary);
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
}

/* ===== Chart Styles ===== */
.chart-section {
    margin: var(--space-lg) var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.chart-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.chart-container {
    width: 100%;
    position: relative;
}

.chart-container canvas {
    width: 100% !important;
}

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--ios-gray-5);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 13px;
    color: var(--text-secondary);
}

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

.pie-chart-container {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.pie-chart-container canvas {
    flex-shrink: 0;
}

.pie-legend {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    min-width: 120px;
}

.pie-legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 13px;
}

.pie-legend-item .legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex-shrink: 0;
}

.pie-legend-item .legend-label {
    flex: 1;
    color: var(--text-secondary);
}

.pie-legend-item .legend-value {
    font-weight: 600;
    color: var(--text-primary);
}

.pie-legend-item.highlight {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--ios-gray-5);
}

/* ===== Settings Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 400px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--ios-gray-5);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--ios-gray-6);
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: var(--space-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--ios-gray-5);
}

.modal-footer .btn-secondary,
.modal-footer .btn-primary {
    flex: 1;
}

.setting-group {
    margin-bottom: var(--space-lg);
}

.setting-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--space-xs);
}

.setting-desc {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
}

.tier-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.tier-input-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tier-input-row input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--ios-gray-4);
    border-radius: var(--radius-xs);
    font-size: 16px;
    font-family: inherit;
}

.tier-input-row input:focus {
    outline: none;
    border-color: var(--mango-primary);
}

.tier-input-row .tier-unit {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.tier-input-row .btn-remove-tier {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--ios-red);
    color: white;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
}

.btn-add-tier {
    width: 100%;
    padding: var(--space-sm);
    border: 2px dashed var(--ios-gray-4);
    background: transparent;
    border-radius: var(--radius-xs);
    color: var(--mango-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}

.btn-add-tier:hover {
    border-color: var(--mango-primary);
    background: rgba(245, 166, 35, 0.1);
}

.settings-btn {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: var(--space-xs);
}

/* =====================================================
   CUSTOMER DETAIL - iOS Style
   ===================================================== */
.customer-detail-header {
    text-align: center;
    padding: var(--space-xl) var(--space-lg) 60px;
    background: linear-gradient(135deg, #F5A623 0%, #E8920D 100%);
    color: var(--ios-white);
}

.customer-detail-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    font-size: 32px;
    font-weight: 600;
}

.customer-detail-name {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.customer-detail-phone {
    font-size: 17px;
    opacity: 0.8;
}

.customer-detail-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin: 0 var(--space-md);
    margin-top: -40px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
}

.detail-stat {
    padding: var(--space-md) var(--space-sm);
    text-align: center;
    border-right: 0.5px solid var(--ios-gray-5);
}

.detail-stat:last-child {
    border-right: none;
}

.detail-stat-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--mango-primary);
    margin-bottom: var(--space-xs);
}

.detail-stat-label {
    font-size: 13px;
    color: var(--text-tertiary);
}

.customer-memo {
    margin: var(--space-lg) var(--space-md);
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}

.memo-label {
    font-size: 13px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.memo-content {
    font-size: 17px;
    color: var(--text-primary);
}

/* ===== Toast - iOS Style ===== */
.toast {
    position: fixed;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(0, 0, 0, 0.8);
    color: var(--ios-white);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s;
    z-index: 2000;
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ===== Utilities ===== */
.hidden {
    display: none !important;
}

/* =====================================================
   RESPONSIVE - PC (768px+)
   ===================================================== */
@media (min-width: 768px) {
    /* Main Screen - PC */
    .main-screen {
        padding: var(--space-2xl);
    }

    .main-logo h1 {
        font-size: 56px;
    }

    .main-logo p {
        font-size: 20px;
    }

    .main-buttons {
        flex-direction: row;
        max-width: 680px;
        gap: var(--space-lg);
    }

    .main-btn {
        flex: 1;
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: var(--space-xl);
        min-height: 220px;
    }

    .main-btn .btn-icon {
        width: 210px;
        height: 210px;
        margin-right: 0;
        margin-bottom: var(--space-md);
    }

    .main-logo .logo-image {
        width: 180px;
    }

    .main-btn-text {
        text-align: center;
    }

    .main-btn .btn-title {
        font-size: 22px;
    }

    .main-btn .btn-subtitle {
        font-size: 16px;
    }

    .main-btn .btn-arrow {
        display: none;
    }

    /* Login - PC */
    .login-screen {
        justify-content: center;
        padding-top: 0;
    }

    .login-form {
        max-width: 400px;
    }

    /* Customer Dashboard - PC */
    .customer-dashboard {
        max-width: 800px;
        margin: 0 auto;
        padding: var(--space-lg);
    }

    .welcome-character img {
        width: 160px;
        height: 160px;
    }

    .balance-card {
        margin: 0 0 var(--space-lg) 0;
        padding: var(--space-xl);
    }

    .balance-card .balance-amount {
        font-size: 56px;
    }

    .birthday-character {
        width: 180px;
        height: 180px;
    }

    .info-cards {
        margin: 0;
        margin-bottom: var(--space-lg);
        gap: var(--space-md);
    }

    .info-card {
        padding: var(--space-lg);
    }

    .service-categories {
        margin: 0;
        margin-bottom: var(--space-lg);
        gap: var(--space-md);
    }

    .service-card {
        padding: var(--space-lg);
    }

    .service-icon {
        width: 72px;
        height: 72px;
    }

    .service-name {
        font-size: 16px;
    }

    .section {
        margin: var(--space-xl) 0;
    }

    /* Admin Dashboard - PC */
    .admin-dashboard {
        max-width: 1000px;
        margin: 0 auto;
        padding: var(--space-lg);
    }

    .stats-grid {
        padding: 0;
        margin-bottom: var(--space-lg);
        gap: var(--space-md);
    }

    .stat-card {
        padding: var(--space-lg);
    }

    .stat-card .stat-value {
        font-size: 36px;
    }

    .search-bar {
        padding: 0;
        max-width: 400px;
    }

    .tabs {
        padding: 0;
        max-width: 400px;
    }

    .customer-list {
        padding: 0;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .birthday-list {
        padding: 0;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .analysis-cards {
        padding: 0;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .chart-section {
        margin: var(--space-lg) 0;
    }

    .pie-chart-container {
        justify-content: flex-start;
    }

    /* Customer Detail - PC */
    #customer-detail {
        max-width: 700px;
        margin: 0 auto;
        background: var(--bg-primary);
    }

    .customer-detail-header {
        padding: var(--space-2xl) var(--space-xl) 80px;
    }

    .customer-detail-stats {
        margin: 0 var(--space-xl);
        margin-top: -50px;
    }

    .customer-memo {
        margin: var(--space-xl);
    }

    #customer-detail .section {
        margin: var(--space-xl);
    }
}

/* =====================================================
   RESPONSIVE - Large Desktop (1200px+)
   ===================================================== */
@media (min-width: 1200px) {
    .admin-dashboard {
        max-width: 1200px;
    }

    .customer-list,
    .birthday-list {
        grid-template-columns: repeat(3, 1fr);
    }

    .analysis-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* =====================================================
   SALON SEARCH - 미용실 검색 화면
   ===================================================== */
.salon-search-form {
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
    padding: var(--space-lg);
}

.salon-search-results {
    margin: var(--space-lg) 0;
    max-height: 300px;
    overflow-y: auto;
}

.salon-result-item {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.salon-result-item:hover {
    border-color: var(--mango-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.salon-result-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--mango-light), var(--mango-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-right: var(--space-md);
}

.salon-result-info {
    flex: 1;
}

.salon-result-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.salon-result-region {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 2px;
}

.salon-search-empty {
    text-align: center;
    padding: var(--space-xl);
    color: var(--text-tertiary);
}

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

/* Selected Salon Badge */
.selected-salon-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    background: linear-gradient(135deg, var(--mango-light), var(--mango-primary));
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
    font-size: 14px;
    font-weight: 500;
    color: white;
}

.selected-salon-badge::before {
    content: '📍';
    margin-right: var(--space-xs);
}

/* =====================================================
   ADMIN LOGIN - 관리자 로그인 화면
   ===================================================== */
.admin-login-form {
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--ios-gray-4);
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-google:hover {
    background: var(--ios-gray-6);
    box-shadow: var(--shadow-sm);
}

.btn-google img {
    width: 20px;
    height: 20px;
}

.login-divider {
    display: flex;
    align-items: center;
    margin: var(--space-md) 0;
}

.login-divider::before,
.login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--ios-gray-4);
}

.login-divider span {
    padding: 0 var(--space-md);
    color: var(--text-tertiary);
    font-size: 14px;
}

.btn-text {
    background: none;
    border: none;
    color: var(--mango-primary);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    padding: var(--space-sm);
    transition: opacity 0.2s;
}

.btn-text:hover {
    opacity: 0.8;
}

/* User Profile (Admin logged in) */
.admin-profile {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
}

.admin-profile-picture {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    margin-right: var(--space-md);
    object-fit: cover;
}

.admin-profile-info {
    flex: 1;
}

.admin-profile-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.admin-profile-email {
    font-size: 13px;
    color: var(--text-tertiary);
}

.btn-logout {
    padding: var(--space-xs) var(--space-sm);
    background: var(--ios-gray-6);
    border: none;
    border-radius: var(--radius-xs);
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

/* Loading States */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--ios-gray-5);
    border-top-color: var(--mango-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: var(--space-md);
    color: var(--text-secondary);
    font-size: 15px;
}

/* Configuration Warning */
.config-warning {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    text-align: center;
    z-index: 10000;
}

.config-warning h2 {
    color: var(--ios-red);
    margin-bottom: var(--space-md);
}

.config-warning p {
    color: var(--text-secondary);
    max-width: 400px;
    line-height: 1.6;
}

.config-warning code {
    display: block;
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--ios-gray-6);
    border-radius: var(--radius-xs);
    font-family: monospace;
    font-size: 13px;
    text-align: left;
}

/* ===== Salon Code System Styles ===== */

/* Salon Code Input */
#salon-code-input {
    text-align: center;
    font-size: 18px;
}

.salon-code-result {
    min-height: 40px;
    margin-bottom: var(--space-md);
}

.salon-code-error {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: #FFF0F0;
    border-radius: var(--radius-sm);
    color: var(--ios-red);
    font-size: 14px;
}

.salon-code-error .error-icon {
    width: 20px;
    height: 20px;
    background: var(--ios-red);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

/* Salon Code Display Box */
.salon-code-box {
    background: linear-gradient(135deg, var(--mango-light) 0%, var(--mango-primary) 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    margin: var(--space-xl) 0;
    box-shadow: var(--shadow-lg);
}

.salon-code-value {
    font-size: 32px;
    font-weight: 800;
    color: white;
    letter-spacing: 4px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    margin-bottom: var(--space-md);
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
}

.btn-copy {
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-copy:hover {
    background: rgba(255, 255, 255, 0.4);
}

.btn-copy:active {
    transform: scale(0.95);
}

.salon-code-info {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: var(--space-xl);
    padding: 0 var(--space-md);
    line-height: 1.6;
}

/* Login Subtext */
.login-subtext {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: var(--space-xs);
}

/* Login Info Box */
.login-info-box {
    background: var(--ios-gray-6);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    margin: var(--space-lg) 0;
    text-align: center;
}

.login-info-box p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}