/* ============================================
   M&M POS S700 Design System
   Modern, clean, consistent UI/UX framework
   ============================================ */

/* ============================================
   CSS VARIABLES / DESIGN TOKENS
   ============================================ */
:root {
    /* Primary Colors - Stripe-inspired palette */
    --color-primary: #635BFF;
    --color-primary-dark: #0A2540;
    --color-primary-light: #7C73FF;
    --color-accent: #5b21b6;
    --color-accent-light: #7c3aed;
    
    /* Semantic Colors */
    --color-success: #28A745;
    --color-success-light: #D4EDDA;
    --color-success-border: #C3E6CB;
    --color-error: #DC3545;
    --color-error-light: #F8D7DA;
    --color-error-border: #F5C6CB;
    --color-warning: #FFC107;
    --color-warning-light: #FFF3CD;
    --color-warning-border: #FFEEBA;
    --color-info: #7c3aed;
    --color-info-light: #ede9fe;
    --color-info-border: #ddd6fe;
    
    /* Neutral Colors */
    --color-background: #F9FAFB;
    --color-background-secondary: #F6F9FC;
    --color-surface: #FFFFFF;
    --color-border: #E3E8EE;
    --color-border-light: #F0F3F7;
    --color-text-primary: #1A1A1A;
    --color-text-secondary: #6C757D;
    --color-text-muted: #8898AA;
    
    /* Spacing Scale (based on 8px grid) */
    --space-xs: 0.25rem;    /* 4px */
    --space-sm: 0.5rem;     /* 8px */
    --space-md: 1rem;       /* 16px */
    --space-lg: 1.5rem;     /* 24px */
    --space-xl: 2rem;       /* 32px */
    --space-2xl: 3rem;      /* 48px */
    --space-3xl: 4rem;      /* 64px */
    --space-4xl: 5rem;      /* 80px */
    
    /* Typography Scale */
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 1.875rem;    /* 30px */
    --font-size-4xl: 2.25rem;     /* 36px */
    --font-size-5xl: 3rem;        /* 48px */
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: var(--line-height-normal);
    font-size: var(--font-size-base);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Ensure footer sticks to bottom */
body > .container-fluid {
    flex: 1 0 auto;
}

footer {
    flex-shrink: 0;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-top: 0;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-top: 0;
    margin-bottom: var(--space-md);
}

.text-muted {
    color: var(--color-text-muted) !important;
}

.text-secondary {
    color: var(--color-text-secondary) !important;
}

/* ============================================
   CARD COMPONENT
   ============================================ */
.stripe-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
    padding: var(--space-2xl);
    margin-bottom: var(--space-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stripe-card-header {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-dark);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
}

.stripe-card-header i {
    margin-right: var(--space-md);
    color: var(--color-primary);
}

/* Card no hover variant */
.stripe-card.no-hover {
    transform: none !important;
}

.stripe-card.no-hover:hover {
    transform: none !important;
    box-shadow: var(--shadow-card);
}

/* ============================================
   BUTTON COMPONENTS
   ============================================ */
.btn {
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    white-space: nowrap;
}

.btn i {
    font-size: 1em;
}

.btn-stripe {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-surface) !important;
    border: none;
}

.btn-stripe:hover {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 91, 255, 0.3);
}

.btn-stripe:active {
    transform: translateY(0);
}

.btn-stripe-outline {
    background: var(--color-surface);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-stripe-outline:hover {
    background: var(--color-primary);
    color: var(--color-surface);
    border-color: var(--color-primary);
}

.btn-lg {
    font-size: var(--font-size-lg);
    padding: 0.875rem 2rem;
}

.btn-sm {
    font-size: var(--font-size-sm);
    padding: 0.5rem 1rem;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* ============================================
   ALERT COMPONENTS
   ============================================ */
.alert {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid;
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: flex-start;
}

.alert i {
    margin-right: var(--space-sm);
}

.alert-stripe-success {
    background-color: var(--color-success-light) !important;
    border-color: var(--color-success-border) !important;
    color: #155724 !important;
}

.alert-stripe-error,
.alert-danger {
    background-color: var(--color-error-light) !important;
    border-color: var(--color-error-border) !important;
    color: #721C24 !important;
}

.alert-stripe-warning,
.alert-warning {
    background-color: var(--color-warning-light) !important;
    border-color: var(--color-warning-border) !important;
    color: #856404 !important;
}

.alert-info {
    background-color: var(--color-info-light) !important;
    border-color: var(--color-info-border) !important;
    color: #0C5460 !important;
}

/* ============================================
   BADGE COMPONENTS
   ============================================ */
.badge-stripe {
    background-color: var(--color-primary);
    color: var(--color-surface);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
}

/* ============================================
   FORM COMPONENTS
   ============================================ */
.form-label {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
    display: block;
}

.form-control,
.form-select {
    width: 100%;
    padding: 0.75rem;
    font-size: var(--font-size-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.25rem rgba(99, 91, 255, 0.15);
}

.form-control.is-valid {
    border-color: var(--color-success);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(.375em + .1875rem) center;
    background-size: calc(.75em + .375rem) calc(.75em + .375rem);
}

.form-control.is-invalid {
    border-color: var(--color-error);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(.375em + .1875rem) center;
    background-size: calc(.75em + .375rem) calc(.75em + .375rem);
}

.form-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
}

/* ============================================
   TABLE COMPONENTS
   ============================================ */
.table-stripe {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.table-stripe thead {
    background-color: var(--color-background-secondary);
}

.table-stripe th {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    padding: var(--space-md);
    border-bottom: 2px solid var(--color-border);
}

.table-stripe td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
}

.table-stripe tbody tr:last-child td {
    border-bottom: none;
}

.table-stripe tbody tr:hover {
    background-color: var(--color-background);
}

/* ============================================
   WORKFLOW STEP COMPONENTS
   ============================================ */
.workflow-step-number {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-3xl);
    box-shadow: 0 4px 12px rgba(99, 91, 255, 0.4);
}

.workflow-step {
    display: flex;
    align-items: center;
    padding: var(--space-lg);
    border-left: 4px solid var(--color-border);
    margin-bottom: var(--space-md);
    transition: border-color var(--transition-base);
    background: var(--color-surface);
    border-radius: var(--radius-md);
}

.workflow-step.active {
    border-left-color: var(--color-primary);
}

.workflow-step.completed {
    border-left-color: var(--color-success);
}

.workflow-step.completed .workflow-step-number {
    background: var(--color-success);
}

/* ============================================
   STATUS INDICATORS
   ============================================ */
.status-online {
    color: var(--color-success);
    font-weight: var(--font-weight-semibold);
}

.status-offline {
    color: var(--color-error);
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner-border {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 0.25em solid currentColor;
    border-right-color: transparent;
    border-radius: var(--radius-full);
    animation: spinner-border 0.75s linear infinite;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

@keyframes spinner-border {
    to { transform: rotate(360deg); }
}

/* ============================================
   NAVBAR / HEADER
   ============================================ */
.navbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) 0;
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    color: var(--color-primary) !important;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-2xl);
    text-decoration: none;
}

.nav-link {
    color: var(--color-text-primary) !important;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-base);
    text-decoration: none;
    padding: var(--space-sm) var(--space-md);
}

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

/* ============================================
   FOOTER
   ============================================ */
footer {
    background-color: var(--color-primary-dark);
    color: var(--color-surface);
    padding: var(--space-2xl) 0;
    margin-top: auto;
}

footer p {
    margin-bottom: var(--space-sm);
}

footer small {
    opacity: 0.8;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center !important;
}

.text-start {
    text-align: left !important;
}

.text-end {
    text-align: right !important;
}

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-xs) !important; }
.mb-2 { margin-bottom: var(--space-sm) !important; }
.mb-3 { margin-bottom: var(--space-md) !important; }
.mb-4 { margin-bottom: var(--space-lg) !important; }
.mb-5 { margin-bottom: var(--space-xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-xs) !important; }
.mt-2 { margin-top: var(--space-sm) !important; }
.mt-3 { margin-top: var(--space-md) !important; }
.mt-4 { margin-top: var(--space-lg) !important; }
.mt-5 { margin-top: var(--space-xl) !important; }

.py-4 { padding-top: var(--space-lg) !important; padding-bottom: var(--space-lg) !important; }
.py-5 { padding-top: var(--space-xl) !important; padding-bottom: var(--space-xl) !important; }

.d-flex { display: flex !important; }
.flex-column { flex-direction: column !important; }
.align-items-center { align-items: center !important; }
.align-items-start { align-items: flex-start !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }

.gap-2 { gap: var(--space-sm) !important; }
.gap-3 { gap: var(--space-md) !important; }
.gap-4 { gap: var(--space-lg) !important; }

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

.fw-bold { font-weight: var(--font-weight-bold) !important; }
.fw-semibold { font-weight: var(--font-weight-semibold) !important; }
.fw-medium { font-weight: var(--font-weight-medium) !important; }

.small { font-size: var(--font-size-sm) !important; }

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

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

.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.fade-in-up {
    animation: fadeInUp var(--transition-slow) ease-out;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }
    
    .stripe-card {
        padding: var(--space-lg);
    }
    
    h1 { font-size: var(--font-size-3xl); }
    h2 { font-size: var(--font-size-2xl); }
    
    .btn-lg {
        font-size: var(--font-size-base);
        padding: 0.75rem 1.5rem;
    }
    
    .workflow-step-number {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 576px) {
    .stripe-card {
        padding: var(--space-md);
    }
    
    .btn {
        width: 100%;
    }
    
    .table-responsive {
        overflow-x: auto;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}


.stepLabel {
    background: linear-gradient(135deg, #fff 0%, var(--primary-color-2) 20%, var(--primary-color-2) 80%, #fff 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
}