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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 2rem 1rem;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-color);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: fadeIn 0.8s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.subtitle {
    color: white;
    font-size: 1.25rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    font-weight: 300;
}

main {
    padding: 2rem;
}

section {
    margin-bottom: 2.5rem;
    animation: slideIn 0.6s ease-out;
    animation-fill-mode: both;
}

section:nth-child(1) { animation-delay: 0.1s; }
section:nth-child(2) { animation-delay: 0.2s; }
section:nth-child(3) { animation-delay: 0.3s; }
section:nth-child(4) { animation-delay: 0.4s; }
section:nth-child(5) { animation-delay: 0.5s; }
section:nth-child(6) { animation-delay: 0.6s; }

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

h2 {
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent-color);
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--secondary-color);
    border-radius: 2px;
}

p {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.intro-text {
    font-size: 1.05rem;
    text-align: justify;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
}

.placeholder {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    color: var(--text-light);
    font-style: italic;
    border: 2px dashed var(--border-color);
}

.contact-link {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.contact-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.contact-link::before {
    content: '✉';
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

footer {
    background: var(--bg-secondary);
    padding: 2rem;
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

ul {
    list-style: none;
    padding-left: 0;
}

ul li {
    display: flex; 
    align-items: flex-start; 
    margin-bottom: 1rem;
}

ul li span.left {
    min-width: 7em; 
    font-weight: bold; 
    color: var(--text-light);
}

.account-link {
    width:32px;height:32px;vertical-align:middle;
}

@media (max-width: 768px) {
    body {
        padding: 1rem 0.5rem;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    header {
        padding: 2rem 1.5rem;
    }

    main {
        padding: 1.5rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .intro-text {
        font-size: 1rem;
        padding: 1rem;
    }

    section {
        margin-bottom: 2rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    h2 {
        font-size: 1.35rem;
    }

    main {
        padding: 1rem;
    }

    .contact-link {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}