:root {
    --anim-duration-fast: 200ms;
    --anim-duration-normal: 400ms;
    --anim-duration-slow: 600ms;
    --anim-duration-slower: 800ms;
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --stagger-delay-base: 80ms;
}

@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 scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

[data-animate] { opacity: 0; }
[data-animate].is-visible { opacity: 1; }

[data-animate="fade-up"] {
    transform: translateY(40px);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
[data-animate="fade-up"].is-visible { transform: translateY(0); }

[data-animate="fade-down"] {
    transform: translateY(-40px);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
[data-animate="fade-down"].is-visible { transform: translateY(0); }

[data-animate="fade-left"] {
    transform: translateX(-40px);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
[data-animate="fade-left"].is-visible { transform: translateX(0); }

[data-animate="fade-right"] {
    transform: translateX(40px);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}
[data-animate="fade-right"].is-visible { transform: translateX(0); }

[data-animate="scale"] {
    transform: scale(0.95);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.8s var(--ease-bounce);
}
[data-animate="scale"].is-visible { transform: scale(1); }

[data-animate="stagger"] {
    transform: translateY(25px);
    transition: opacity 0.4s var(--ease-out-quart), transform 0.4s var(--ease-out-quart);
}
[data-animate="stagger"].is-visible { transform: translateY(0); }

[data-stagger-delay="1"] { transition-delay: calc(var(--stagger-delay-base) * 1); }
[data-stagger-delay="2"] { transition-delay: calc(var(--stagger-delay-base) * 2); }
[data-stagger-delay="3"] { transition-delay: calc(var(--stagger-delay-base) * 3); }
[data-stagger-delay="4"] { transition-delay: calc(var(--stagger-delay-base) * 4); }
[data-stagger-delay="5"] { transition-delay: calc(var(--stagger-delay-base) * 5); }
[data-stagger-delay="6"] { transition-delay: calc(var(--stagger-delay-base) * 6); }

[data-animate="counter"] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s var(--ease-out-expo), transform 0.4s var(--ease-out-expo);
}
[data-animate="counter"].is-visible {
    opacity: 1;
    transform: translateY(0);
}

.hero__eyebrow { animation: fadeInDown 0.8s var(--ease-out-expo) 0.2s forwards; opacity: 0; }
.hero__title { animation: fadeInUp 0.8s var(--ease-out-expo) 0.4s forwards; opacity: 0; }
.hero__subtitle { animation: fadeInUp 0.8s var(--ease-out-expo) 0.6s forwards; opacity: 0; }
.hero__actions { animation: fadeInUp 0.8s var(--ease-out-expo) 0.8s forwards; opacity: 0; }
.hero__metrics { animation: fadeInUp 0.8s var(--ease-out-expo) 1s forwards; opacity: 0; }
.hero__metric:nth-child(1) { animation-delay: 1.2s; opacity: 0; }
.hero__metric:nth-child(3) { animation-delay: 1.4s; opacity: 0; }
.hero__metric:nth-child(5) { animation-delay: 1.6s; opacity: 0; }

.btn--primary, .btn--ghost, .btn--outline {
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn--primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn--primary:active::after {
    width: 300px;
    height: 300px;
}

.practice-card, .why-card {
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.practice-card::before {
    transition: transform var(--transition-slow);
}

.about__image-placeholder {
    transition: transform var(--transition-slow);
}

.about__image-placeholder:hover {
    transform: scale(1.02);
}

.form-group input, .form-group select, .form-group textarea {
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--color-champagne);
    box-shadow: 0 0 0 3px var(--color-champagne-muted);
    outline: none;
}

.navbar__link {
    transition: color var(--transition-fast);
}

.navbar__brand-name, .navbar__brand-separator, .navbar__brand-role {
    transition: color var(--transition-base);
}

.footer-social__link {
    transition: all var(--transition-base);
}

.footer-links a {
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-contact__item a {
    transition: color var(--transition-fast);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-cream);
}

::-webkit-scrollbar-thumb {
    background: var(--color-steel);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-champagne);
}

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

    [data-animate] {
        opacity: 1 !important;
        transform: none !important;
    }

    .hero__scroll-line {
        animation: none;
    }
}