@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;700&display=swap');

:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

.loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s;
}

.loader {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(56, 189, 248, 0.2);
    border-top: 5px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.27, 1.55) infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.fade-out {
    opacity: 0;
    visibility: hidden;
}

.container {
    max-width: 600px;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.container_thanks {
    max-width: 1000px;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 30px;
    font-weight: 300;
}

.button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.btn {
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.4);
}

.btn-primary:active:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.6);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    border-bottom: 1px solid transparent;
}

a:hover {
    color: var(--accent-hover);
    border-bottom: 1px solid var(--accent-hover);
}

h2,
h3,
h4 {
    color: var(--text-main);
    font-weight: 700;
    line-height: 1.2;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.5px;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
    color: var(--text-muted);
}