:root {
    --primary-metallic: #d1d5db; /* Silver/Platinum match for SRE logo */
    --dark-base: #0a0c10;
    --dark-spotlight: #1c232d;
    --glass: rgba(15, 23, 42, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
}

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

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

/* Texture Background with Spotlight */
.background-visual {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, var(--dark-spotlight) 0%, var(--dark-base) 100%);
    z-index: -1;
}

/* Subtle Carbon/Leather Texture Overlay */
.background-visual::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15; /* Adjusted for subtle elegance */
    pointer-events: none;
    background-image: url("https://www.transparenttextures.com/patterns/carbon-fibre.png");
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    text-align: center;
}

/* Logo Styling as a Premium Plaque */
.brand-logo {
    width: 150px;
    height: auto;
    margin-bottom: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    transition: transform 0.4s ease;
}

.brand-logo:hover {
    transform: translateY(-5px);
}

/* Typography */
header h1 {
    font-size: clamp(2rem, 8vw, 3.2rem);
    font-weight: 700;
    margin-bottom: 1.2rem;
    letter-spacing: -0.03em;
    /* Metallic Silver Gradient for Text */
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-metallic) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 3.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Form Card (Glassmorphism) */
.form-card {
    background: var(--glass);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 28px;
    padding: 6px;
    box-shadow: 0 40px 120px rgba(0, 0, 0, 0.9);
    position: relative;
    overflow: hidden;
}

.form-loader {
    padding: 120px 20px;
    color: var(--primary-metallic);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 700;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

footer {
    margin-top: 5rem;
    padding-bottom: 3rem;
    font-size: 0.8rem;
    color: #475569;
    letter-spacing: 1px;
}

/* Success Elements for Thank You Page */
.cta-button {
    display: inline-block;
    margin-top: 25px;
    padding: 14px 40px;
    background: var(--primary-metallic);
    color: var(--dark-base);
    text-decoration: none;
    font-weight: 700;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1.5px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(209, 213, 219, 0.3);
    background: #ffffff;
}

@media (max-width: 600px) {
    .container { padding-top: 2rem; }
    header p { margin-bottom: 2.5rem; }
}