/* ========================================
   DOMINI - Minimal Modern Design System
   Version: 2.0 - Complete Redesign
   ======================================== */

/* ========================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ======================================== */
:root {
    /* Color Palette - G Tech Group Brand */
    --color-primary: #5d92d0;        /* G Tech Blue */
    --color-primary-light: #7aa6dd;
    --color-primary-dark: #4a7ab8;

    --color-secondary: #64748b;      /* Slate */
    --color-accent: #8b5cf6;         /* Purple accent */

    --color-success: #10b981;        /* Emerald */
    --color-warning: #f59e0b;        /* Amber */
    --color-error: #ef4444;          /* Red */
    --color-info: #06b6d4;           /* Cyan */

    /* Neutrals - Gray Scale */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    --color-white: #ffffff;
    --color-black: #000000;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    --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-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */

    /* Border Radius */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-Index Scale */
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ========================================
   2. RESET & BASE STYLES
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   3. TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
}

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-bottom: var(--space-4);
    color: var(--color-gray-700);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

/* ========================================
   4. LAYOUT
   ======================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 640px) {
    .container { padding: 0 var(--space-6); }
}

@media (min-width: 1024px) {
    .container { padding: 0 var(--space-8); }
}

.section {
    padding: var(--space-16) 0;
}

.section-sm {
    padding: var(--space-8) 0;
}

.section-lg {
    padding: var(--space-20) 0;
}

/* ========================================
   5. NAVBAR (Minimal Design)
   ======================================== */
.navbar-minimal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.navbar-container {
    max-width: 1280px;
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: transform var(--transition-fast);
}

.navbar-brand:hover {
    transform: translateY(-2px);
}

.navbar-logo {
    height: 32px;
    width: auto;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
}

.nav-link-minimal {
    padding: var(--space-2) var(--space-4);
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link-minimal:hover {
    color: var(--color-gray-900);
    background-color: var(--color-gray-100);
}

.nav-link-minimal.active {
    color: var(--color-primary);
    background-color: rgba(37, 99, 235, 0.1);
}

/* Mobile Menu Toggle */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--color-gray-600);
}

@media (max-width: 768px) {
    .navbar-toggle {
        display: block;
    }

    .navbar-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-white);
        border-bottom: 1px solid var(--color-gray-200);
        padding: var(--space-4);
        gap: var(--space-1);
        display: none;
    }

    .navbar-nav.active {
        display: flex;
    }
}

/* Main Content Offset */
main {
    flex: 1;
}

/* ========================================
   6. CARDS (Minimal Design)
   ======================================== */
.card-minimal {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.card-minimal:hover {
    border-color: var(--color-gray-300);
    box-shadow: var(--shadow-md);
}

.card-header-minimal {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-gray-100);
}

.card-body-minimal {
    color: var(--color-gray-700);
}

/* ========================================
   7. BUTTONS (Minimal Design)
   ======================================== */
.btn-minimal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-minimal:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Button Variants */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-gray-200);
    color: var(--color-gray-900);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-gray-300);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-700);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-gray-700);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-gray-100);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
}

/* ========================================
   8. FORMS (Minimal Design)
   ======================================== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input::placeholder {
    color: var(--color-gray-400);
}

.form-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ========================================
   9. TABLE (Minimal Design)
   ======================================== */
.table-minimal {
    width: 100%;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
}

.table-minimal thead {
    background-color: var(--color-gray-50);
}

.table-minimal th {
    padding: var(--space-4);
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-gray-200);
}

.table-minimal td {
    padding: var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
}

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

.table-minimal tbody tr {
    transition: background-color var(--transition-fast);
}

.table-minimal tbody tr:hover {
    background-color: var(--color-gray-50);
}

/* ========================================
   10. ALERTS & BADGES
   ======================================== */
.alert-minimal {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.alert-info {
    background-color: rgba(6, 182, 212, 0.1);
    color: var(--color-info);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.badge-minimal {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
}

.badge-primary {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.badge-gray {
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
}

/* ========================================
   11. LOADING & ANIMATIONS
   ======================================== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-300);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.fade-in {
    animation: fadeIn 0.4s ease-in;
}

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

.slide-up {
    animation: slideUp 0.4s ease-out;
}

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

/* ========================================
   12. FOOTER
   ======================================== */
.footer-minimal {
    margin-top: auto;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
    padding: var(--space-8) 0;
}

.footer-content {
    text-align: center;
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-6);
    margin-bottom: var(--space-4);
    list-style: none;
}

.footer-link {
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ========================================
   13. UTILITY CLASSES
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-error { color: var(--color-error) !important; }
.text-gray { color: var(--color-gray-600) !important; }

.bg-white { background-color: var(--color-white) !important; }
.bg-gray { background-color: var(--color-gray-50) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-6 { margin-top: var(--space-6) !important; }
.mt-8 { margin-top: var(--space-8) !important; }

.p-4 { padding: var(--space-4) !important; }
.p-6 { padding: var(--space-6) !important; }
.p-8 { padding: var(--space-8) !important; }

.rounded { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }

.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Grid utilities */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ========================================
   14. RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
    }

    .section {
        padding: var(--space-8) 0;
    }

    .grid-cols-3 {
        grid-template-columns: repeat(1, minmax(0, 1fr));
    }

    .grid-cols-2 {
        grid-template-columns: repeat(1, minmax(0, 1fr));
    }
}

/* ========================================
   15. PRINT STYLES
   ======================================== */
@media print {
    .navbar-minimal,
    .footer-minimal,
    .btn-minimal,
    .alert-minimal {
        display: none !important;
    }

    body {
        background-color: white;
    }

    .card-minimal {
        border: 1px solid #000;
        box-shadow: none;
    }
}

/* ========================================
   16. CUSTOM SCROLLBAR
   ======================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background-color: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-gray-400);
}

/* ========================================
   17. ACCESSIBILITY
   ======================================== */
.sr-only {
    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(--color-primary);
    outline-offset: 2px;
}

/* ========================================
   18. HERO GRADIENT SECTION
   ======================================== */
.hero-gradient {
    background: linear-gradient(135deg, #4a7ab8 0%, #5d92d0 50%, #7aa6dd 100%);
    position: relative;
    overflow: hidden;
    padding: 4rem 0;
}

.hero-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-gradient::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.1));
    pointer-events: none;
}

/* ========================================
   19. STATS GRID
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-6);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   20. TABLE ENHANCEMENTS
   ======================================== */
.cursor-pointer {
    cursor: pointer;
}

.hover\:bg-gray-100:hover {
    background-color: var(--color-gray-100);
}

.table-minimal th.cursor-pointer {
    user-select: none;
    transition: background-color var(--transition-fast);
}

/* ========================================
   21. ANIMATIONS & WOW EFFECTS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
    opacity: 0;
}

/* Hover lift effect for cards */
.hover-lift {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(93, 146, 208, 0.15);
}

/* Enhanced card hover effects */
.card-minimal {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stats-grid .card-minimal:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(93, 146, 208, 0.15);
}

/* Smooth section transitions */
section {
    position: relative;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(93, 146, 208, 0.1), transparent);
}

/* Enhanced shadows for depth */
.card-minimal {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05),
                0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.card-minimal:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08),
                0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* ========================================
   22. DARK MODE READY (Optional)
   ======================================== */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode auto-switch */
    /*
    :root {
        --color-gray-900: #f9fafb;
        --color-gray-800: #f3f4f6;
        --color-gray-700: #e5e7eb;
        --color-white: #111827;
        --color-gray-50: #1f2937;
    }
    */
}