/* Variables */
:root {
    /* Colors */
    --primary-color: #29ccbb;
    --secondary-color: #0891b2;

    /* Light theme */
    --text-color-light: #333333;
    --background-light: #ffffff;
    --card-bg-light: #ffffff;
    --button-bg-light: #f5f5f5;
    --button-hover-light: #eaeaea;
    --button-border-light: #e2e8f0;

    /* Dark theme */
    --text-color-dark: #f7fafc;
    --background-dark: #121212;
    --card-bg-dark: #1e1e1e;
    --button-bg-dark: #2a2a2a;
    --button-hover-dark: #3a3a3a;
    --button-border-dark: #4a5568;

    /* Social media colors */
    --facebook-color: #1877f2;
    --linkedin-color: #0077b5;

    /* Shadows */
    --shadow-light: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Base Styles */
body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-light);
    color: var(--text-color-light);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
}

/* Dark Mode Styles */
body.dark {
    background-color: var(--background-dark);
    color: var(--text-color-dark);
}

body.dark .card {
    background-color: var(--card-bg-dark);
    box-shadow: var(--shadow-dark);
}

body.dark .dark-mode-switcher {
    background-color: var(--card-bg-dark);
}

body.dark .logo {
    background-color: white;
    /* Logo background in dark mode */
}

body.dark .link-button {
    background-color: var(--button-bg-dark);
    color: var(--text-color-dark);
}

body.dark .link-button:hover {
    background-color: var(--button-hover-dark);
}

body.dark .name-title {
    color: var(--text-color-dark);
}

body.dark .footer {
    color: #a0aec0;
}

/* Card Container */
.card {
    max-width: 500px;
    width: 100%;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    background-color: var(--card-bg-light);
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
    animation: fadeIn 1s ease-in-out;
}

/* Dark Mode Switcher */
.dark-mode-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background-color: var(--card-bg-light);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: background-color var(--transition-normal), transform var(--transition-normal);
    z-index: 100;
}

.dark-mode-switcher:hover {
    transform: scale(1.1);
}

/* Logo */
.logo {
    border-radius: 50%;
    padding: 5px;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(41, 204, 187, 0.2);
    transition: transform var(--transition-normal),
        box-shadow var(--transition-normal),
        background-color var(--transition-normal);
}

.logo:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(41, 204, 187, 0.4);
}

/* Name and Title */
.name-title {
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-weight: 500;
    margin-top: 0.5rem;
    animation: fadeIn 1.5s ease-in-out;
}

.name-title span {
    font-weight: 600;
    color: var(--primary-color);
}

/* Link Buttons */
.link-button {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-radius: 10px;
    background-color: var(--button-bg-light);
    color: var(--text-color-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal),
        background-color var(--transition-normal),
        box-shadow var(--transition-normal),
        border-color var(--transition-normal);
}

.link-button::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, rgba(41, 204, 187, 0.1), transparent);
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--transition-slow);
}

.link-button:hover {
    transform: translateY(-3px);
    background-color: var(--button-hover-light);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.link-button:hover::before {
    transform: translate(-50%, -50%) scale(1);
}

.link-button i {
    font-size: 1.25rem;
    margin-right: 1rem;
    min-width: 20px;
    color: var(--secondary-color);
    transition: color var(--transition-normal);
}

.link-button:hover i {
    color: var(--primary-color);
}

/* Social Media Buttons */
.social-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.social-button:hover {
    transform: translateY(-3px);
    opacity: 0.9;
}

.facebook {
    background-color: var(--facebook-color);
}

.linkedin {
    background-color: var(--linkedin-color);
}

.instagram {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

/* Footer */
.footer {
    font-size: 0.875rem;
    opacity: 0.7;
    animation: fadeInUp 1s ease-in-out;
}

/* Accessibility Improvements */
a:focus,
button:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Gradient Background Animation for Dark Mode */
@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* Optional: Enable for animated gradient background in dark mode */
/* 
body.dark {
  background: linear-gradient(-45deg, #1a202c, #2d3748, #1a202c, #2d3748);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
}
*/

/* Responsive Styles */
@media (max-width: 480px) {
    .card {
        padding: 1.5rem;
    }

    .link-button {
        padding: 0.875rem;
    }

    .dark-mode-switcher {
        top: 10px;
        right: 10px;
    }
}