:root {
    --primary-bg: #0f172a;
    --secondary-bg: #1e293b;
    --accent: #38bdf8;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
}

body { font-family: 'Inter', sans-serif; background: var(--primary-bg); color: var(--text-main); margin: 0; line-height: 1.6; }
nav { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 10%; background: rgba(15, 23, 42, 0.9); position: sticky; top: 0; z-index: 100; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--accent); }
nav ul { display: flex; list-style: none; gap: 2rem; }
nav a { text-decoration: none; color: var(--text-main); font-weight: 500; transition: 0.3s; }
nav a:hover { color: var(--accent); }

.hero { height: 70vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; }
.hero h1 { font-size: 3.5rem; background: linear-gradient(to right, #fff, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; padding: 4rem 10%; }
.service-card { background: var(--secondary-bg); padding: 2rem; border-radius: 12px; border: 1px solid #334155; transition: 0.3s; }
.service-card:hover { transform: translateY(-5px); border-color: var(--accent); }


.contact-container { max-width: 600px; margin: 4rem auto; padding: 0 2rem; }
.contact-intro { text-align: center; margin-bottom: 3rem; }
.contact-intro h1 { font-size: 3rem; margin-bottom: 1rem; background: linear-gradient(90deg, #fff, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.form-group { margin-bottom: 1.5rem; }
label { display: block; margin-bottom: 0.5rem; color: var(--text-dim); font-size: 0.9rem; }
input, textarea { width: 100%; padding: 0.8rem; background: var(--secondary-bg); border: 1px solid #334155; color: white; border-radius: 6px; font-size: 1rem; }
button { width: 100%; background: var(--accent); color: #000; padding: 1rem; border: none; border-radius: 6px; font-weight: 700; cursor: pointer; transition: 0.3s; margin-top: 1rem; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Progress Bar Styles */
#progressContainer { display: none; margin-top: 2rem; transition: opacity 1s ease, transform 0.8s ease; opacity: 1; }
.progress-label { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 0.9rem; color: var(--accent); font-weight: 600; }
.progress-bar-bg { width: 100%; height: 8px; background: var(--secondary-bg); border-radius: 10px; overflow: hidden; border: 1px solid rgba(255,255,255,0.1); }
.progress-bar-fill { width: 0%; height: 100%; background: linear-gradient(90deg, #38bdf8, #818cf8); box-shadow: 0 0 10px rgba(56,189,248,0.5); transition: width 0.4s ease; }
.progress-bar-fill.success { background: #22c55e; box-shadow: 0 0 10px rgba(34,197,94,0.5); }
.progress-bar-fill.error { background: #ef4444; box-shadow: 0 0 10px rgba(239,68,68,0.5); }
.fade-out { opacity: 0 !important; transform: translateY(-10px); pointer-events: none; }

.response-message { margin-top: 1.5rem; text-align: center; font-weight: 500; }
.success { color: #22c55e; }
.error { color: #ef4444; }

.site-footer { background: var(--secondary-bg); padding: 4rem 10% 2rem; border-top: 1px solid #334155; margin-top: 6rem; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.footer-bottom { text-align: center; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid #334155; color: var(--text-dim); font-size: 0.8rem; }