/* Modern Design System */
:root {
    /* Minimalist / Academic Palette */
    --color-cream: #FDFBF7;
    --color-cream-dark: #F5F2EB;

    /* Primary: Deep Charcoal / Black Ink */
    --color-primary: #18181b;
    --color-primary-hover: #000000;
    --color-primary-light: #27272a;
    --color-primary-light-10: rgba(24, 24, 27, 0.05);

    /* Neutrals (Warm Grays) */
    --color-gray-50: #FAFAF9;
    --color-gray-100: #F5F5F4;
    --color-gray-200: #E7E5E4;
    --color-gray-300: #D6D3D1;
    --color-gray-400: #A8A29E;
    --color-gray-500: #78716C;
    --color-gray-600: #57534E;
    --color-gray-700: #44403C;
    --color-gray-800: #292524;
    --color-gray-900: #0C0A09;

    /* Semantic - Muted/Professional */
    --color-success: #15803d;
    /* Deep Green */
    --color-warning: #b45309;
    /* Amber */
    --color-error: #b91c1c;
    /* Deep Red */

    /* Layout */
    --container-width: 1280px;
    --header-height: 72px;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Times New Roman', Times, serif;
    /* For LaTeX look */

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);

    --radius-sm: 0.125rem;
    --radius-md: 0.25rem;
    /* Sharper corners for professional look */
    --radius-lg: 0.375rem;
    --radius-xl: 0.5rem;
    --radius-2xl: 0.75rem;

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Import Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Times+New+Roman&display=swap');

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-cream);
    color: var(--color-gray-900);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* LaTeX / Academic Resume Style */
.latex-style {
    font-family: var(--font-serif);
    color: #000;
    line-height: 1.4;
}

.latex-style h1,
.latex-style h2,
.latex-style h3 {
    font-family: var(--font-serif);
}

.latex-header {
    text-align: center;
    margin-bottom: 1rem;
}

.latex-section-title {
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: bold;
    border-bottom: 1px solid #000;
    margin-bottom: 0.5rem;
    padding-bottom: 2px;
    letter-spacing: 0.05em;
}

/* Heatmap Effect */
.heatmap-overlay {
    background:
        radial-gradient(circle at 30% 20%, rgba(255, 0, 0, 0.2) 0%, transparent 20%),
        radial-gradient(circle at 70% 40%, rgba(255, 0, 0, 0.15) 0%, transparent 25%),
        radial-gradient(circle at 40% 60%, rgba(255, 0, 0, 0.1) 0%, transparent 20%);
    mix-blend-mode: multiply;
    pointer-events: none;
}

/* Paper Grid Texture (Subtle) */
.paper-grid {
    position: relative;
    background-color: var(--color-cream);
    background-image:
        linear-gradient(var(--color-gray-200) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-gray-200) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center top;
}

/* Subtle Noise Overlay */
.paper-grid::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

/* Ensure content sits above the grid/noise */
.paper-grid>* {
    position: relative;
    z-index: 1;
}

/* Fade out grid at the bottom */
.paper-grid::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    background: linear-gradient(to bottom, transparent, var(--color-cream));
    pointer-events: none;
    z-index: 0;
}

/* Remove gradient text utilities if they exist or override them */
.text-gradient {
    background: none;
    -webkit-text-fill-color: initial;
    color: var(--color-gray-900);
}

/* Custom animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Animation classes */
.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

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

.animate-slide-in-left {
    animation: slideInLeft 0.5s ease-out forwards;
}

.animate-slide-in-right {
    animation: slideInRight 0.5s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.3s ease-out forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Stagger animations */
.stagger-1 {
    animation-delay: 0.1s;
    opacity: 0;
}

.stagger-2 {
    animation-delay: 0.2s;
    opacity: 0;
}

.stagger-3 {
    animation-delay: 0.3s;
    opacity: 0;
}

.stagger-4 {
    animation-delay: 0.4s;
    opacity: 0;
}

.stagger-5 {
    animation-delay: 0.5s;
    opacity: 0;
}

/* Button hover effects */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* Card hover effects */
.card-hover {
    transition: all var(--transition-base);
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Gradient backgrounds */
.gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-success {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-warm {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.gradient-ocean {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.gradient-sunset {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

/* Glass morphism effect */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Loading shimmer effect */
.shimmer {
    background: linear-gradient(90deg,
            #f0f0f0 0%,
            #f8f8f8 20%,
            #f0f0f0 40%,
            #f0f0f0 100%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite linear;
}

/* Testimonial cards */
.testimonial-card {
    position: relative;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: white;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 15px;
    font-size: 4rem;
    color: var(--color-primary);
    opacity: 0.1;
    font-family: Georgia, serif;
}

.testimonial-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

/* Feature cards with icon */
.feature-card {
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--color-primary);
    transition: height var(--transition-slow);
}

.feature-card:hover::after {
    height: 100%;
}

/* Navigation with backdrop blur */
.nav-blur {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* Stats counter */
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* CTA section with animated gradient */
.cta-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

/* Responsive utilities */
@media (max-width: 768px) {
    .stat-number {
        font-size: 2rem;
    }
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Smooth transitions for theme changes */
* {
    transition-property: background-color, border-color, color, fill, stroke;
    transition-duration: var(--transition-base);
    transition-timing-function: ease-in-out;
}

/* Selection color */
::selection {
    background-color: var(--color-primary);
    color: white;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-gray-400);
    border-radius: 5px;
}

/* App Specific Styles */

.app-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--color-gray-50);
    border-right: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--color-gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

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

.sidebar-link.active {
    background: white;
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
}

.main-content {
    background: white;
    padding: 2rem;
    overflow-y: auto;
    height: 100vh;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.resume-card {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-base);
    background: white;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.resume-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.create-card {
    border: 2px dashed var(--color-gray-300);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--color-gray-50);
    color: var(--color-gray-500);
}

.create-card:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light-10);
    /* Needs opacity */
}

/* Editor Layout */
.editor-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    height: calc(100vh - 4rem);
}

.editor-form {
    overflow-y: auto;
    padding-right: 1rem;
}

.editor-preview {
    background: var(--color-gray-100);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    padding: 2rem;
    overflow-y: auto;
    display: flex;
    justify-content: center;
}

.resume-paper {
    background: white;
    width: 100%;
    max-width: 210mm;
    /* A4 width */
    min-height: 297mm;
    /* A4 height */
    padding: 20mm;
    box-shadow: var(--shadow-lg);
    font-size: 11pt;
    line-height: 1.4;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: 0.95rem;
}

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

/* Steps Indicator */
.steps {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-gray-500);
    font-size: 0.875rem;
    font-weight: 500;
}

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

.step-number {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-gray-200);
    color: var(--color-gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.step.active .step-number {
    background: var(--color-primary);
    color: white;
}

.step-line {
    flex: 1;
    height: 2px;
    background: var(--color-gray-200);
    margin: 0 1rem;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
        /* Hidden on mobile for now, would need a hamburger menu */
    }

    .editor-layout {
        grid-template-columns: 1fr;
    }

    .editor-preview {
        display: none;
        /* Hide preview on mobile edit mode */
    }
}