@import url('https://rsms.me/inter/inter.css');

:root {
    --primary: #0056b3;
    --primary-hover: #004494;
    --background: #f8f9fa;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --glass: rgba(255, 255, 255, 0.7);
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

body {
    background-color: var(--background);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* Glassmorphism Navbar */
.navbar {
    background: var(--glass) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border) !important;
    transition: all 0.3s ease;
}

/* Premium Buttons */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    border-radius: 8px;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Hero Section */
.hero-section {
    padding: 6rem 0;
    background: radial-gradient(circle at top right, #e0f2fe, transparent),
                radial-gradient(circle at bottom left, #f0f9ff, transparent);
    border-bottom: none;
}

.hero-title {
    letter-spacing: -0.025em;
    line-height: 1.1;
    background: linear-gradient(to bottom right, #111827, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Glass Cards */
.card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

/* Drag & Drop Zone */
.drop-zone {
    border: 2px dashed #d1d5db;
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    background-color: #f9fafb;
    cursor: pointer;
    transition: all 0.2s ease;
}

.drop-zone.dragover {
    border-color: var(--primary);
    background-color: #eef2ff;
    transform: scale(1.01);
}

.drop-zone i {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: block;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

/* Stats Cards */
.stat-card {
    padding: 1.5rem;
    border-radius: 12px;
    background: #fff;
    border: 1px solid #f3f4f6;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-main);
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}