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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f0f4f8 0%, #d9e2ec 100%);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px;
    position: relative;
    z-index: 1;
}

.black-hole-effect {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0) 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulseEffect 8s infinite ease-in-out;
    z-index: -1;
    opacity: 0.2;
}

header {
    text-align: center;
    padding: 40px 0;
    background: url('https://drive.google.com/uc?export=view&id=17cMRT8C3C7KKMgrtmIfZn8qzPxTqXMWd') no-repeat center center;
    background-size: cover;
    color: #fff;
    position: relative;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
}

header h1 {
    font-size: 3em;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
}

.tagline {
    font-size: 1.2em;
    opacity: 0.9;
    margin-bottom: 20px;
    font-weight: 500;
}

/* Навигация */
.nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap; /* разрешаем перенос строк */
    gap: 12px;
}

.nav a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1em;
    padding: 8px 14px;
    transition: all 0.3s ease;
    font-weight: 500;
    border-radius: 5px;
    background: rgba(0, 0, 0, 0.2);
}

.nav a:hover {
    color: #00bcd4;
    background: rgba(255, 255, 255, 0.2);
}

.section {
    padding: 30px 0;
    background: #fff;
    margin: 20px 0;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.section-title {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
    font-weight: 600;
}

.content {
    max-width: 100%;
    padding: 15px;
}

.mission-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mission-highlight {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(0, 188, 212, 0.2) 100%);
    padding: 20px;
    border-radius: 8px;
    border-left: 5px solid #00bcd4;
}

.mission-text {
    font-size: 1.1em;
    color: #2c3e50;
    margin: 10px 0;
    font-weight: 400;
}

.mission-vision {
    font-style: italic;
    font-size: 1em;
    color: #34495e;
    text-align: center;
    padding: 15px;
    background: rgba(255, 255, 255, 0.7);
    border-left: 5px solid #2196f3;
    font-weight: 500;
}

.experience-item {
    margin: 15px 0;
    padding: 20px;
    background: linear-gradient(90deg, #00bcd4, #2196f3);
    border-left: 5px solid #00bcd4;
    border-radius: 8px;
    transition: transform 0.3s ease;
    color: #fff;
    cursor: pointer;
    font-size: 1em;
}

.experience-item:hover {
    transform: translateX(10px);
}

.experience-item.expanded .details {
    max-height: 500px;
    opacity: 1;
    padding: 15px;
}

.details {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    background: #f8f9fa;
    color: #333;
    margin-top: 15px;
    border-radius: 8px;
    transition: max-height 0.5s ease, opacity 0.5s ease;
    font-size: 0.95em;
}

.short-desc {
    font-size: 1em;
}

/* ====== Skill Set ====== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px; /* умеренное расстояние */
    padding: 30px 0;
}

.skill-item {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 15px;
    padding: 20px 25px;
    border-radius: 16px;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    font-size: 1.4em;   /* чуть больше базового */
    font-weight: 600;
    color: #2c3e50;
    min-height: 80px;   /* фиксированная высота для выравнивания */
    transition: transform 0.3s ease, background 0.3s ease;
}

.skill-item i {
    color: #2196f3;
    font-size: 1.6em;
    flex-shrink: 0; /* иконка не сжимается */
}

.skill-item:hover {
    transform: translateY(-4px);
    background: rgba(33, 150, 243, 0.25);
}

/* ====== Конец Skill Set ====== */

#contact .content p {
    text-align: center;
    font-size: 1.1em;
}

.telegram-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #0088cc;
    text-decoration: none;
    font-weight: 500;
}

.telegram-icon {
    width: 22px;
    height: 22px;
    vertical-align: middle;
}

footer {
    text-align: center;
    padding: 15px 0;
    background: #2c3e50;
    color: #fff;
    margin-top: 20px;
    font-size: 0.9em;
}

.download-section {
    text-align: center;
    padding: 20px 0;
}

.download-btn {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(90deg, #00bcd4, #2196f3);
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-size: 1.1em;
    font-weight: 600;
    transition: transform 0.3s ease, background 0.3s ease;
}

.download-btn:hover {
    transform: scale(1.05);
    background: linear-gradient(90deg, #2196f3, #00bcd4);
}

/* Анимации */
@keyframes pulseEffect {
    0% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
    100% { transform: translate(-50%, -50%) scale(1); }
}

/* Адаптивность */
@media (max-width: 768px) {
    header h1 { font-size: 2.2em; }
    .section-title { font-size: 2em; }
    .nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px;
        padding: 10px 0;
    }
    .nav a {
        padding: 8px 12px;
        min-width: unset;
        font-size: 1em;
    }
    .experience-item { padding: 15px; font-size: 0.95em; }
    .skills-grid { grid-template-columns: 1fr; }
    .skill-item { 
        font-size: 1.8em; 
        padding: 28px 40px;
    }
    .skill-item i { font-size: 2.2em; }
    .mission-text { font-size: 1em; }
    .mission-vision { font-size: 0.9em; }
    .details { font-size: 0.9em; }
    .download-btn { font-size: 1em; padding: 10px 20px; }
}

@media (max-width: 480px) {
    header { padding: 15px 0; height: 180px; }
    header h1 { font-size: 1.8em; }
    .tagline { font-size: 1em; }
    .nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
        padding: 8px 0;
    }
    .nav a {
        font-size: 0.9em;
        padding: 6px 10px;
        min-width: unset;
    }
    .section { padding: 15px 0; margin: 10px 0; }
    .section-title { font-size: 1.5em; }
    .experience-item { padding: 10px; font-size: 0.9em; }
    .short-desc { font-size: 0.9em; }
    .skills-grid { grid-template-columns: 1fr; }
    .skill-item { 
        font-size: 1.4em; 
        padding: 22px 30px;
    }
    .skill-item i { font-size: 1.8em; }
    .telegram-icon { width: 18px; height: 18px; }
    #contact .content p { font-size: 1em; }
    .details { font-size: 0.85em; }
    .download-btn { font-size: 0.9em; padding: 8px 15px; }
}

@media (min-width: 1200px) {
    .container { max-width: 1000px; }
}