@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@500;700;900&display=swap');

:root {
    --hue: 220;
    --bg-main: hsl(var(--hue), 25%, 98%);
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --border-card: rgba(15, 23, 42, 0.05);
    --text-heading: hsl(var(--hue), 40%, 10%);
    --text-body: hsl(var(--hue), 25%, 35%);
    --text-muted: hsl(var(--hue), 20%, 50%);
    --accent-gradient-start: hsl(199, 89%, 48%);
    --accent-gradient-end: hsl(238, 83%, 65%);
    --pill-bg: hsla(199, 89%, 48%, 0.1);
    --pill-text: hsl(199, 89%, 35%);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
    --hover-shadow: 0 16px 40px 0 rgba(31, 38, 135, 0.1);
    --transition-speed: 0.3s;
}

html.dark {
    --bg-main: #0b1120;
    --bg-card: rgba(30, 41, 59, 0.4);
    --bg-card-hover: rgba(30, 41, 59, 0.8);
    --border-card: rgba(255, 255, 255, 0.08);
    --text-heading: #f8fafc;
    --text-body: #cbd5e1;
    --text-muted: #94a3b8;
    --accent-gradient-start: #38bdf8;
    --accent-gradient-end: #818cf8;
    --pill-bg: rgba(56, 189, 248, 0.15);
    --pill-text: #7dd3fc;
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --hover-shadow: 0 16px 40px 0 rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-body);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overflow-x: hidden;
}

body::before, body::after {
    content: ''; position: fixed; border-radius: 50%; opacity: 0.07;
    z-index: -1; pointer-events: none;
}

body::before {
    top: -20%; left: -10%; width: 60vw; height: 60vw;
    background: radial-gradient(circle, var(--accent-gradient-start) 0%, transparent 60%);
    animation: drift 20s ease-in-out infinite alternate;
}

body::after {
    bottom: -20%; right: -10%; width: 50vw; height: 50vw;
    background: radial-gradient(circle, var(--accent-gradient-end) 0%, transparent 60%);
    animation: drift-reverse 25s ease-in-out infinite alternate;
}

@keyframes drift { 0% { transform: translate(0, 0); } 100% { transform: translate(5%, 5%); } }
@keyframes drift-reverse { 0% { transform: translate(0, 0); } 100% { transform: translate(-5%, -5%); } }

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif; color: var(--text-heading); margin-bottom: 1rem; transition: color var(--transition-speed);
}

h1 { font-size: clamp(3rem, 8vw, 4.5rem); font-weight: 900; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 500; }
h3 { font-size: 2rem; font-weight: 700; text-align: center; margin-bottom: 3rem; }
h4 { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.5rem; }
p { margin-bottom: 1rem; font-size: 1rem; }
a { text-decoration: none; color: inherit; }

.gradient-text {
    background: linear-gradient(135deg, var(--accent-gradient-start), var(--accent-gradient-end));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; display: inline-block;
}

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 4rem 1.5rem; }
.text-center { text-align: center; }
.mb-16 { margin-bottom: 4rem; }
.mb-8 { margin-bottom: 2rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-6 { gap: 1.5rem; }
.gap-4 { gap: 1rem; }
.gap-2 { gap: 0.5rem; }
.flex-wrap { flex-wrap: wrap; }
.grid { display: grid; }
.gap-8 { gap: 2rem; }

@media (max-width: 768px) {
    .md-grid-cols-2, .md-grid-cols-3 { grid-template-columns: 1fr; }
}
@media (min-width: 769px) {
    .md-grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md-grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}


.icon-link { color: var(--text-muted); transition: color 0.2s, transform 0.2s; display: inline-block; }
.icon-link:hover { color: var(--text-heading); transform: translateY(-3px) scale(1.1); }
.icon-svg { width: 2rem; height: 2rem; fill: currentColor; }
.icon-svg-small { width: 1.5rem; height: 1.5rem; }

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gradient-start), var(--accent-gradient-end));
    color: white; font-weight: 600; padding: 0.875rem 1.75rem; border-radius: 8px;
    display: inline-flex; align-items: center; justify-content: center;
    transition: transform 0.2s, box-shadow 0.2s; box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
    font-size: 1rem; border: none; cursor: pointer;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(56, 189, 248, 0.4); color: white; }
html.dark .btn-primary { box-shadow: 0 4px 15px rgba(56, 189, 248, 0.2); }

.card {
    background-color: var(--bg-card); border: 1px solid var(--border-card); border-radius: 16px;
    padding: 2rem; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--glass-shadow); transition: transform var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed);
    display: flex; flex-direction: column; position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--hover-shadow); background-color: var(--bg-card-hover); }
html.dark .card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.card-content { flex-grow: 1; }
.card-footer { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border-card); display: flex; justify-content: space-between; align-items: center; }

.pill {
    background-color: var(--pill-bg); color: var(--pill-text); font-size: 0.75rem; font-weight: 600;
    padding: 0.25rem 0.75rem; border-radius: 9999px; display: inline-block; transition: background-color 0.2s;
}

.text-link {
    color: var(--accent-gradient-start); font-weight: 500; font-size: 0.875rem;
    transition: color 0.2s, opacity 0.2s; display: inline-flex; align-items: center; gap: 0.25rem;
}
.text-link:hover { color: var(--accent-gradient-end); text-decoration: underline; }

.hero-p { max-width: 48rem; margin: 0 auto 2rem auto; font-size: 1.125rem; color: var(--text-body); }
footer { text-align: center; padding: 4rem 0; color: var(--text-muted); }
footer a { color: var(--text-body); font-weight: 500; }
footer a:hover { color: var(--accent-gradient-start); }

/* Custom Utilities */
.d-block { display: block; }
.ml-4 { margin-left: 1rem; }
.ml-6 { margin-left: 1.5rem; }
.m-0 { margin: 0; }
.mb-2 { margin-bottom: 0.5rem; }
.p-6 { padding: 1.5rem; }
.list-disc { list-style: disc; }

/* Enhancements (Nav, Metrics, Dashed Cards) */
.navbar { position: sticky; top: 0; z-index: 90; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); background-color: rgba(255,255,255,0.7); border-bottom: 1px solid var(--border-card); padding: 1rem 1.5rem; display: flex; justify-content: center; gap: 2rem; font-weight: 500; }
html.dark .navbar { background-color: rgba(30,41,59,0.7); }
.navbar a { color: var(--text-body); transition: color 0.2s; font-size: 0.875rem; }
.navbar a:hover { color: var(--accent-gradient-start); }
@media (min-width: 768px) { .navbar a { font-size: 1rem; } }
.card-dashed { border: 2px dashed var(--border-card); background-color: transparent; box-shadow: none; }
.card-dashed:hover { background-color: var(--bg-card); }
.metric-pop { color: var(--accent-gradient-start); font-weight: 700; }