:root {
    --font-family: 'Inter', sans-serif;
    --gradient-start: #4F46E5;
    --gradient-end: #14B8A6;
    --primary-purple: #8B5CF6;
    --text-light: #FFFFFF;
    --text-dark: #1F2937;
    --text-muted: #D1D5DB;
    --card-bg: #FFFFFF;
    --last-used-bg: #A7F3D0;
    --last-used-text: #065F46;
}

/* --- Base & Reset --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    color: var(--text-light);
    overflow-x: hidden;
}

.background-container {
    background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));

    min-height: 100vh;
    position: relative;
    padding-bottom: 60px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.text-center {
    text-align: center;
}

/* --- Header --- */
.header {
    padding: 24px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-light);
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav-menu a:hover {
    opacity: 0.8;
}

.nav-buttons {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn {
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--text-light);
    color: var(--text-dark);
}

.btn-primary:hover {
    background-color: #f0f0f0;
}

.btn-secondary {
    color: var(--text-light);
    background-color: transparent;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* --- Main Content --- */
.main-content {
    padding-top: 80px;
}

.main-title {
    font-size: 80px;
    font-weight: 200;
    line-height: 1.1;
    margin-bottom: 16px;
}

.subtitle {
    font-size: 18px;
    color: var(--text-muted);
}

/* --- Profiles --- */
.profiles-container {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 60px;
}

.profile-card-wrapper {
    position: relative;
}

.last-used-tag {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--last-used-bg);
    color: var(--last-used-text);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
}

.profile-card {
    background-color: var(--card-bg);
    color: var(--text-dark);
    border-radius: 16px;
    padding: 40px;
    width: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 24px;
    overflow: hidden;
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.profile-email {
    font-size: 16px;
    color: #6B7280;
    margin-bottom: 24px;
}

.btn-continue {
    background-color: var(--primary-purple);
    color: var(--text-light);
    border: none;
    width: 100%;
    padding: 16px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-continue:hover {
    background-color: #7C3AED;
}

/* --- Floating Icons --- */
.floating-icon {
    position: absolute;
    z-index: 1;
    user-select: none;
}

.icon-text-voice { top: 58%; left: 16%; width: 120px; animation-delay: -1s; }
.icon-co { top: 70%; left: 10%; width: 100px; animation-delay: -2s; }
.icon-email { top: 68%; left: 24%; width: 100px; animation-delay: -4s; }
.icon-heart { top: 75%; left: 18%; width: 100px; animation-delay: -3s; }
.icon-code { top: 62%; right: 25%; width: 100px; animation-delay: -3s; }
.icon-a { top: 52%; right: 18%; width: 90px; animation-delay: -5s; }
.icon-degree { top: 70%; right: 20%; width: 100px; animation-delay: -0.5s; }
.icon-pie { top: 65%; right: 12%; width: 100px; animation-delay: -2.5s; }


@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* --- Responsive --- */
@media (max-width: 1200px) {
    .floating-icon {
        display: none; /* Hide icons on smaller screens to avoid clutter */
    }
}

@media (max-width: 992px) {
    .nav-menu {
        display: none; /* Simple hide for mobile, a real app would use a hamburger menu */
    }
    .main-title {
        font-size: 48px;
    }
    .profiles-container {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding-top: 40px;
    }
    .main-title {
        font-size: 36px;
    }
    .profile-card {
        width: 100%;
        max-width: 320px;
    }
    .nav-buttons {
        display: none; /* Simple hide for mobile */
    }
}