/* Custom CSS for Smart ATS */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --light-bg: #f8fafc;
    --dark-bg: #1e293b;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #334155;
    background-color: #ffffff;
}

.main-content {
    padding-top: 76px; /* Offset for fixed navbar */
}

/* Typography */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.navbar {
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: #93c5fd !important;
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: #93c5fd;
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
    left: 0;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-features .feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.hero-image {
    position: relative;
}

.floating-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    animation: cardFloat 4s ease-in-out infinite;
}

@keyframes cardFloat {
    0%, 100% { transform: perspective(1000px) rotateY(-5deg) rotateX(5deg) translateY(0px); }
    50% { transform: perspective(1000px) rotateY(-5deg) rotateX(5deg) translateY(-10px); }
}

.progress-animation {
    width: 100%;
    height: 4px;
    background-color: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
    margin-top: 1rem;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), #06b6d4);
    width: 0%;
    animation: progress 3s ease-in-out infinite;
}

@keyframes progress {
    0% { width: 0%; }
    50% { width: 100%; }
    100% { width: 0%; }
}

/* Upload Section */
.upload-card {
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid #e5e7eb;
    transition: var(--transition);
}

.upload-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
}

.upload-zone {
    border: 2px dashed #d1d5db;
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background: #fafafa;
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background: #f0f9ff;
}

.upload-zone.dragover {
    border-color: var(--primary-color);
    background: #dbeafe;
    transform: scale(1.02);
}

.file-info {
    background: #f0f9ff;
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
}

/* Feature Cards */
.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid #e5e7eb;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), #06b6d4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
    font-size: 1.5rem;
}

/* Statistics */
.stat-item {
    padding: 1rem;
}

.stat-item h2 {
    font-weight: 800;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::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: var(--transition);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

/* Forms */
.form-control {
    border-radius: var(--border-radius);
    border: 2px solid #e5e7eb;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-label {
    color: #374151;
    margin-bottom: 0.5rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.loading-content {
    text-align: center;
    color: white;
}

.loading-content .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Results Section */
.result-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--box-shadow);
    border-left: 4px solid var(--primary-color);
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    margin: 0 auto;
    position: relative;
}

.score-excellent { background: linear-gradient(135deg, #059669, #10b981); }
.score-good { background: linear-gradient(135deg, #0891b2, #06b6d4); }
.score-average { background: linear-gradient(135deg, #d97706, #f59e0b); }
.score-poor { background: linear-gradient(135deg, #dc2626, #ef4444); }

/* Dashboard Charts */
.chart-container {
    position: relative;
    height: 400px;
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
}

/* Issue Cards */
.issue-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
    border-left: 4px solid #6b7280;
    transition: var(--transition);
}

.issue-card:hover {
    transform: translateX(5px);
    box-shadow: var(--box-shadow);
}

.issue-card.grammar { border-left-color: var(--danger-color); }
.issue-card.repetition { border-left-color: var(--warning-color); }
.issue-card.format { border-left-color: var(--primary-color); }

/* Animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-slide-up {
    animation: slideInUp 0.6s ease-out;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .floating-card {
        transform: none;
        animation: none;
    }
    
    .upload-card {
        padding: 2rem 1.5rem;
    }
    
    .feature-card {
        margin-bottom: 2rem;
    }
}

@media (max-width: 576px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .upload-zone {
        padding: 2rem 1rem;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Print styles */
@media print {
    .navbar, .loading-overlay, .btn, .footer {
        display: none !important;
    }
    
    .main-content {
        padding-top: 0;
    }
    
    .result-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #e5e7eb;
    }
}