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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f5576c;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
    --transition-speed: 0.3s;
}

[data-theme="dark"] {
    color-scheme: dark;
    /* Force native controls to dark mode */
    --bg-dark: #0f0f1e;
    --bg-card: #1a1a2e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: #2a2a3e;
    --bg-input: #1a1a2e;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --bg-footer: rgba(26, 26, 46, 0.85);
}

[data-theme="light"] {
    color-scheme: light;
    /* Force native controls to light mode */
    --bg-dark: #f5f5f5;
    --bg-card: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #555555;
    --border-color: #e0e0e0;
    --bg-input: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --bg-footer: rgba(255, 255, 255, 0.85);
}

html {
    scroll-behavior: smooth;
    height: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    direction: ltr;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

body::before {
    content: '';
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.2), transparent);
    border-radius: 50%;
    top: -100px;
    left: -100px;
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 87, 108, 0.15), transparent);
    border-radius: 50%;
    bottom: -50px;
    right: -50px;
    z-index: -1;
    pointer-events: none;
}

[data-theme="light"] body::before {
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1), transparent);
}

[data-theme="light"] body::after {
    background: radial-gradient(circle, rgba(245, 87, 108, 0.08), transparent);
}

.bg-fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    pointer-events: none;
    background-image:
        linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1)),
        url('../images/MyPhoto.png');
    background-position:
        center,
        right calc(50% + 60px);
    background-repeat: no-repeat;
    background-size: auto auto, auto 100%;
    transform: translateZ(0);
    will-change: transform;
}

[data-theme="light"] .bg-fixed {
    background-image:
        linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05)),
        url('../images/MyPhoto.png');
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--primary-color);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-btn {
    display: inline-block;
    padding: 12px 40px;
    font-size: 1rem;
    border: none;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-speed);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    text-align: center;
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
    color: white;
}

.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin: 20px auto;
    max-width: 1200px;
    text-align: center;
    animation: slideDown 0.3s ease-out;
}

.alert-error {
    background-color: var(--error-color);
    color: white;
}

.alert-success {
    background-color: var(--success-color);
    color: white;
}

.alert-warning {
    background-color: var(--warning-color);
    color: white;
}


@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

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

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }

    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }
}