/* LoopsHR CSS Design System */

:root {
    /* 1. Color Palette (HSL Tailored slate neutrals & indigo primary/accent) */
    --color-slate-50: hsl(220, 14%, 96%);
    --color-slate-100: hsl(220, 14%, 90%);
    --color-slate-200: hsl(220, 14%, 80%);
    --color-slate-300: hsl(220, 13%, 69%);
    --color-slate-400: hsl(220, 13%, 50%);
    --color-slate-500: hsl(220, 13%, 40%);
    --color-slate-600: hsl(220, 14%, 30%);
    --color-slate-700: hsl(220, 14%, 20%);
    --color-slate-800: hsl(222, 18%, 15%);
    --color-slate-900: hsl(222, 47%, 7%);
    --color-slate-950: hsl(224, 71%, 4%);

    --color-primary-300: hsl(244, 98%, 77%);
    --color-primary-400: hsl(244, 98%, 68%);
    --color-primary-500: hsl(244, 98%, 60%);
    --color-primary-600: hsl(244, 75%, 45%);
    --color-accent: hsl(327, 98%, 61%);

    --color-success: hsl(150, 84%, 39%);
    --color-error: hsl(0, 84%, 60%);

    --gradient-accent: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-accent) 100%);
    --card-bg: rgba(255, 255, 255, 0.02);
    --card-border: rgba(255, 255, 255, 0.06);

    /* 2. Spacing Scale (8px Grid baseline) */
    --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 */

    /* 3. Typography Scale */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Outfit', sans-serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* 4. Radii Scale */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 28px;
    --radius-full: 9999px;

    /* 5. Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base resets & global styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-family: var(--font-sans);
    color: var(--color-slate-50);
    background-color: var(--color-slate-950);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 45%),
        radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.08) 0%, transparent 45%);
    background-attachment: fixed;
    line-height: var(--leading-normal);
}

/* Typography Base Classes */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    color: var(--color-slate-50);
}

/* General Layout helpers */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Typography Helpers */
.title-xl {
    font-size: var(--text-5xl);
    line-height: 1.1;
    font-weight: var(--font-extrabold);
    letter-spacing: -1.5px;
}

.title-lg {
    font-size: var(--text-4xl);
    line-height: var(--leading-tight);
    font-weight: var(--font-bold);
    letter-spacing: -1px;
}

.title-md {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    letter-spacing: -0.5px;
}

.text-gradient {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--color-slate-300);
    font-size: var(--text-lg);
    font-weight: var(--font-light);
    line-height: var(--leading-relaxed);
}

/* Core Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-slate-50);
    border: 1px solid var(--card-border);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--color-slate-300);
}

/* Cards & Glassmorphic boxes */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(8px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Forms and Inputs */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.form-group label {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-slate-300);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-field {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    color: var(--color-slate-50);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.input-field:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
    background-color: rgba(255, 255, 255, 0.05);
}

.form-row {
    display: flex;
    gap: var(--space-4);
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
}

/* Layout & Page Elements */

/* Navbar Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background-color: rgba(11, 15, 25, 0.7);
    border-bottom: 1px solid var(--card-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: var(--space-6);
    align-items: center;
}

.nav-links a {
    color: var(--color-slate-300);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-slate-50);
}

/* Badge Component */
.badge {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--color-primary-300);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-6);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Hero */
.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10rem var(--space-6) 5rem var(--space-6);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 90vh;
    justify-content: center;
}

.hero h1 {
    margin-bottom: var(--space-4);
    max-width: 900px;
}

.hero p {
    margin-bottom: var(--space-10);
    max-width: 700px;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
}

/* Features */
.features {
    padding: var(--space-16) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-header h2 {
    margin-bottom: var(--space-3);
}

.grid-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
}

.feature-card {
    padding: var(--space-10) var(--space-8);
}

.feature-icon {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.feature-card h3 {
    margin-bottom: var(--space-3);
}

.feature-card p {
    color: var(--color-slate-300);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    font-weight: var(--font-light);
}

/* Pricing Grid */
.grid-pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-12);
    align-items: stretch;
}

.pricing-card {
    padding: var(--space-12) var(--space-8);
}

.pricing-card.popular {
    border-color: rgba(99, 102, 241, 0.4);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
    box-shadow: 0 4px 30px rgba(99, 102, 241, 0.05);
}

.pricing-card.popular::after {
    content: 'Most Popular';
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: var(--gradient-accent);
    color: white;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
}

.pricing-header h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-2);
}

.pricing-header p {
    color: var(--color-slate-300);
    font-size: var(--text-xs);
    margin-bottom: var(--space-6);
}

.pricing-price {
    margin-bottom: var(--space-8);
}

.pricing-price .amount {
    font-size: var(--text-5xl);
    font-weight: var(--font-extrabold);
    font-family: var(--font-heading);
    color: var(--color-slate-50);
}

.pricing-price .currency {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--color-slate-300);
}

.pricing-price .period {
    color: var(--color-slate-300);
    font-size: var(--text-sm);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-10);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.pricing-features li {
    font-size: var(--text-sm);
    color: var(--color-slate-300);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.pricing-features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: var(--font-bold);
}

.pricing-btn {
    width: 100%;
}

/* Modal Overlay & Card styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(15px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    padding: var(--space-6);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background-color: rgba(20, 24, 38, 0.98);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 600px;
    padding: var(--space-10);
    position: relative;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-overlay.active .modal-card {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: none;
    border: none;
    color: var(--color-slate-300);
    font-size: var(--text-3xl);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.close-btn:hover {
    color: var(--color-slate-50);
}

.modal-card h2 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2);
}

.modal-card p.subtitle {
    margin-bottom: var(--space-8);
}

.form-feedback {
    font-size: var(--text-sm);
    margin-top: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    display: none;
    line-height: var(--leading-relaxed);
}

.form-feedback.success {
    display: block;
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-success);
}

.form-feedback.error {
    display: block;
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-error);
}

.submit-btn {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--text-base);
    margin-top: var(--space-4);
}

/* Footer styling */
footer {
    max-width: 1200px;
    margin: var(--space-16) auto 0 auto;
    padding: var(--space-8) var(--space-6);
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-slate-300);
    font-size: var(--text-sm);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    footer {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

/* Premium Footer */
.premium-footer {
    background-color: var(--color-slate-950) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.05) !important;
    padding: 5rem 0 3rem 0 !important;
    margin-top: 6rem !important;
    color: var(--color-slate-400) !important;
    display: block !important; /* Override parent flex behavior */
    max-width: 100% !important;
}
.premium-footer a {
    color: var(--color-slate-400) !important;
    text-decoration: none;
    transition: color var(--transition-fast);
}
.premium-footer a:hover {
    color: var(--color-primary-300) !important;
}
.premium-footer-grid {
    display: grid !important;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.premium-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--color-slate-500);
    font-size: var(--text-xs);
}
@media (max-width: 992px) {
    .premium-footer-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 2rem;
    }
}
@media (max-width: 576px) {
    .premium-footer-grid {
        grid-template-columns: 1fr !important;
        gap: 2rem;
    }
    .premium-footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}