/**
 * Анимации и эффекты
 * Выезжающие блоки, hover эффекты, переходы
 */

/* === Базовые keyframes === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* === Выезжающие контейнеры при скролле === */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Выезд слева */
.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-80px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* Выезд справа */
.scroll-reveal-right {
    opacity: 0;
    transform: translateX(80px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* Чередующиеся выезжающие блоки (как в описании) */
.scroll-alternate {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-alternate:nth-child(odd) {
    transform: translateX(-100px);
}

.scroll-alternate:nth-child(even) {
    transform: translateX(100px);
}

.scroll-alternate.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* Задержка для каскадного эффекта */
.scroll-reveal[data-delay="1"] { transition-delay: 0.1s; }
.scroll-reveal[data-delay="2"] { transition-delay: 0.2s; }
.scroll-reveal[data-delay="3"] { transition-delay: 0.3s; }
.scroll-reveal[data-delay="4"] { transition-delay: 0.4s; }
.scroll-reveal[data-delay="5"] { transition-delay: 0.5s; }

/* === Hover эффекты для карточек === */
.card-hover {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Hover с подсветкой границы */
.card-glow {
    position: relative;
    transition: all var(--transition-base);
}

.card-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-base);
}

.card-glow:hover::before {
    opacity: 1;
}

/* === Эффект мерцания (shimmer) для загрузки === */
.shimmer {
    background: linear-gradient(
        90deg,
        var(--bg-card) 0%,
        var(--bg-tertiary) 50%,
        var(--bg-card) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* === Градиентный фон с анимацией === */
.animated-gradient {
    background: linear-gradient(
        -45deg,
        var(--color-primary),
        var(--color-secondary),
        var(--color-accent),
        var(--color-primary-dark)
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

/* === Эффект печатающегося текста === */
.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--color-primary);
    white-space: nowrap;
    animation: typing 3s steps(40) 1s forwards, blink 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    50% { border-color: transparent; }
}

/* === Hover эффекты для ссылок === */
.link-underline {
    position: relative;
    text-decoration: none;
}

.link-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.link-underline:hover::after {
    width: 100%;
}

/* === Эффект волны при клике === */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease, opacity 0.6s ease;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
    opacity: 0;
}

/* === Floating элементы === */
.float-animation {
    animation: float 3s ease-in-out infinite;
}

.float-animation-delayed {
    animation: float 3s ease-in-out infinite;
    animation-delay: 1s;
}

/* === Pulse эффект для важных элементов === */
.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

/* === Вращение для иконок === */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 1s linear infinite;
}

/* === Эффект появления для модальных окон === */
.modal-enter {
    animation: modalEnter 0.3s ease forwards;
}

@keyframes modalEnter {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* === Эффект для тегов навыков === */
.skill-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-base);
    cursor: default;
}

.skill-tag:hover {
    background: var(--color-primary);
    color: var(--text-inverse);
    transform: scale(1.05);
}

/* === Прогресс-бар с анимацией === */
.progress-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1s ease-out;
}

.progress-bar-fill.animated {
    animation: progressFill 1.5s ease-out forwards;
}

@keyframes progressFill {
    from { width: 0; }
}

/* === Эффект стекла (glassmorphism) === */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

.glass-strong {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
}

/* === Неоновое свечение === */
.neon-glow {
    text-shadow: 
        0 0 5px var(--color-primary),
        0 0 10px var(--color-primary),
        0 0 20px var(--color-primary),
        0 0 40px var(--color-primary-light);
}

.neon-box {
    box-shadow: 
        0 0 5px var(--color-primary),
        0 0 10px var(--color-primary),
        inset 0 0 5px rgba(14, 165, 233, 0.1);
}

/* === Отключение анимаций при prefers-reduced-motion === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-reveal,
    .scroll-reveal-left,
    .scroll-reveal-right,
    .scroll-alternate {
        opacity: 1;
        transform: none;
    }
}
.hero-description strong,
.card.glass strong{
    color: var(--color-primary-light);
}