/* --- BLUE THEME VARIABLES --- */
:root {
    --primary: #0056b3; --accent: #00aaff; --dark: #002a4d; --bg: #e6f2ff; --white: #fff; --text: #333;
    --light-gray: #f4f7fa;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', sans-serif; color: var(--text); line-height: 1.6; background: var(--white); }
a { text-decoration: none; transition: 0.3s; color: var(--primary); }
a:hover { color: var(--dark); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* HEADER & BUTTONS */
header { background: var(--white); padding: 15px 0; box-shadow: 0 2px 5px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 999; }
.nav-links { display: flex; gap: 20px; align-items: center; list-style: none; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--dark); }
.btn-login { background: var(--primary); color: var(--white) !important; padding: 10px 20px; border-radius: 4px; text-transform: uppercase; font-size: 0.85rem; }
.btn-login:hover { background: var(--dark); }

/* MAIN SECTIONS */
.section { padding: 80px 0; }
.section-colored { background-color: var(--light-gray); }
.section h2 { font-size: 2.2rem; color: var(--dark); margin-bottom: 40px; text-align: center; }
.section p { margin-bottom: 20px; }

/* LAYOUTS */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }

/* METRICS SECTION */
.section-metrics .grid { grid-template-columns: repeat(3, 1fr); text-align: center; }
.metric h3 { font-size: 3rem; color: var(--accent); margin-bottom: 5px; }
.metric p { text-transform: uppercase; font-size: 0.9rem; color: var(--text); }

/* CARDS & PLACEHOLDERS */
.card { padding: 30px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); border-top: 4px solid var(--primary); background: var(--white); border-radius: 6px; }
.card h3 { color: var(--dark); margin-bottom: 10px; }
.image-placeholder { background: #cce5ff; height: 350px; display: flex; align-items: center; justify-content: center; color: var(--dark); font-weight: bold; border: 1px dashed var(--primary); border-radius: 6px; overflow: hidden; }

/* CTA SECTION */
.cta-block { padding: 50px; background-color: var(--primary); color: var(--white); border-radius: 6px; margin-top: 50px; }
.cta-block h3 { font-size: 1.8rem; margin-bottom: 15px; }
.btn-cta { background-color: var(--accent); color: var(--white) !important; padding: 12px 30px; border-radius: 4px; font-weight: bold; display: inline-block; margin-top: 15px; }
.btn-cta:hover { background-color: var(--dark); }

/* HERO */
.hero { background: var(--bg); padding: 100px 0; text-align: center; }
.hero h1 { font-size: 3rem; color: var(--dark); margin-bottom: 20px; }
.hero-content { max-width: 800px; margin: 0 auto; }

/* FOOTER */
footer { background: var(--dark); color: #889db3; text-align: center; padding: 40px 0; margin-top: 50px; }