@import url('https://fonts.googleapis.com/css2?family=Caudex:ital,wght@0,400;0,700;1,400;1,700&family=Kanit:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Montserrat:ital,wght@0,100..900;1,100..900&family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Ysabeau+SC:wght@1..1000&display=swap');

:root {
    /* Light Theme Colors */
    --primary-light: #FF6B6B;
    --secondary-light: #4ECDC4;
    --background-light: #ffffff;
    --text-light: #2C3E50;
    --surface-light: #F8F9FA;
    --accent-light: #FFE66D;

    /* Dark Theme Colors */
    --primary-dark: #FF6B6B;
    --secondary-dark: #4ECDC4;
    --background-dark: #1A1B1E;
    --text-dark: #E9ECEF;
    --surface-dark: #2C2E33;
    --accent-dark: #FFE66D;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.16);
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --primary: var(--primary-dark);
    --secondary: var(--secondary-dark);
    --background: var(--background-dark);
    --text: var(--text-dark);
    --surface: var(--surface-dark);
    --accent: var(--accent-dark);
}

[data-theme="light"] {
    --primary: var(--primary-light);
    --secondary: var(--secondary-light);
    --background: var(--background-light);
    --text: var(--text-light);
    --surface: var(--surface-light);
    --accent: var(--accent-light);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    transition: all var(--transition-normal);
}

body {
    background: var(--background);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

.hero {
    display: grid;
    grid-template-columns: 300px 1fr;
    min-height: 100vh;
    gap: 1rem;
    padding: 1rem;
}

.sidebar {
    background: var(--surface);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
    overflow: hidden;
    border-radius: 1.5rem;
    box-shadow: var(--shadow-md);
    height: calc(100vh - 2rem);
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(165deg, var(--primary) 0%, var(--secondary) 100%);
    opacity: 0.05;
    z-index: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    position: relative;
    z-index: 1;
    padding: 0.5rem;
    border-radius: 1rem;
    background: var(--background);
    box-shadow: var(--shadow-sm);
}

.logo i {
    font-size: 1.4rem;
    color: var(--primary);
    padding: 0.8rem;
    border-radius: 1rem;
    background: var(--surface);
}

.logo h1 {
    font-size: 1.3rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1rem;
    border-radius: 0.8rem;
    color: var(--text);
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: 0.9rem;
}

.nav-links a i {
    font-size: 1.1rem;
    color: var(--primary);
}

.nav-links a:hover {
    background: var(--background);
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.social-icons {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: auto;
    position: relative;
    z-index: 1;
}

.social-icons a {
    background: var(--background);
    width: 100%;
    padding: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    border-radius: 0.8rem;
    color: var(--text);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    font-size: 0.9rem;
}

.social-icons a i {
    font-size: 1.1rem;
    color: var(--primary);
}

.social-icons a:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.social-icons a:hover i {
    color: white;
}

.theme-toggle {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    align-self: flex-start;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.8rem;
    transition: all var(--transition-normal);
}

.theme-label {
    font-size: 0.9rem;
    color: var(--text);
    opacity: 0.9;
    user-select: none;
}

.theme-toggle .slider-container {
    position: relative;
    width: 60px;
    height: 30px;
    border-radius: 15px;
    background: var(--background);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.theme-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.theme-toggle .slider {
    position: absolute;
    cursor: pointer;
    top: 2px;
    left: 2px;
    width: 26px;
    height: 26px;
    border-radius: 13px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: var(--transition-normal);
}

.theme-toggle:hover {
    background: var(--background);
    box-shadow: var(--shadow-sm);
}

.theme-toggle:hover .theme-label {
    opacity: 1;
}

.theme-toggle input:checked + .slider {
    transform: translateX(30px);
}

.main-content {
    padding: 2rem 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    background: var(--surface);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-md);
}

.text-content {
    max-width: 800px;
}

.text-content h2 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.text-content p {
    font-size: 1.1rem;
    color: var(--text);
    opacity: 0.9;
    line-height: 1.6;
}

textarea {
    width: 100%;
    height: 200px;
    background: var(--background);
    color: var(--text);
    font-size: 1.1rem;
    border: none;
    outline: none;
    padding: 1.5rem;
    border-radius: 1.2rem;
    resize: none;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

textarea:focus {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.controls {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.2rem;
    margin-top: 1rem;
}

select {
    background: var(--background);
    color: var(--text);
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

select:focus {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

button {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    filter: brightness(1.1);
}

footer {
    grid-column: 1 / -1;
    text-align: center;
    padding: 1.2rem;
    background: var(--surface);
    color: var(--text);
    font-size: 0.9rem;
    opacity: 0.9;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .sidebar {
        height: auto;
        padding: 1.2rem;
    }

    .nav-links {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links a {
        padding: 0.6rem 1rem;
    }

    .social-icons {
        flex-direction: row;
        justify-content: center;
    }

    .social-icons a {
        width: auto;
        padding: 0.6rem 1rem;
    }

    .text-content h2 {
        font-size: 2rem;
    }

    .controls {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    textarea {
        height: 180px;
    }
}