/* GramSave Core Styles */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    /* Brand Colors */
    --primary: #3B82F6;
    --primary-dark: #2563EB;
    --secondary: #8B5CF6;
    --accent: #6366F1;
    
    /* Neutral Colors */
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --text-main: #111827;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    
    /* Status Colors */
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;

    /* 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);
    
    /* Spacing */
    --container-width: 1200px;
    --header-height: 80px;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; letter-spacing: -0.01em; }
h3 { font-size: 1.75rem; }

.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

/* Input Fields */
.input-group {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.input-field {
    width: 100%;
    padding: 16px 24px;
    padding-right: 140px;
    border-radius: 50px;
    border: 2px solid var(--border);
    font-size: 1.1rem;
    transition: all 0.3s ease;
    outline: none;
}

.input-field:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.input-btn {
    position: absolute;
    right: 8px;
    top: 8px;
    bottom: 8px;
    padding: 0 24px;
}

/* Header & Nav */
header {
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }
    
    .nav-links.active {
        transform: translateY(0);
        box-shadow: var(--shadow-md);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .grid-cols-3, .grid-cols-2 {
        grid-template-columns: 1fr;
    }
    
    .input-field {
        padding-right: 24px;
        margin-bottom: 1rem;
    }
    
    .input-btn {
        position: static;
        width: 100%;
    }
}