/* ===================================================================
   Aura Pilates Studio -- Stylesheet
   =================================================================== */

/* ===== RESET ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== DESIGN TOKENS ===== */
:root {
    /* Colors */
    --color-primary: #E8DDD3;
    --color-primary-light: #F2EBE3;
    --color-white: #FFFFFF;
    --color-dark: #2C2C2C;
    --color-secondary: #8B7D6B;
    --color-divider: #C4B5A5;
    --color-footer: #D4C8BB;
    --color-lightbox-overlay: rgba(44, 44, 44, 0.94);

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Montserrat', 'Helvetica Neue', sans-serif;

    /* Spacing */
    --section-padding: 120px 0;
    --container-width: 1200px;
    --container-padding: 0 24px;

    /* Transitions */
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-base: 0.3s ease;
}

/* ===== BASE STYLES ===== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--color-dark);
    background-color: var(--color-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.no-scroll {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

.section-label {
    display: block;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 300;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.2;
    margin-bottom: 24px;
}

.section-divider {
    width: 60px;
    height: 1px;
    background: var(--color-divider);
    margin-bottom: 40px;
}


/* ===================================================================
   NAVIGATION
   =================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar--scrolled {
    background: var(--color-primary);
    box-shadow: 0 1px 0 var(--color-divider);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.navbar__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.navbar__logo-img {
    max-height: 36px;
    width: auto;
    filter: brightness(0) opacity(0.8);
    transition: filter var(--transition-base);
}

.navbar__links {
    display: none;
    flex-direction: row;
    align-items: center;
    gap: 36px;
}

.navbar__link {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-dark);
    position: relative;
    padding: 4px 0;
    transition: color var(--transition-base);
}

.navbar__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-dark);
    transform: scaleX(0);
    transform-origin: right center;
    transition: transform var(--transition-base);
}

.navbar__link:hover::after,
.navbar__link--active::after {
    transform: scaleX(1);
    transform-origin: left center;
}

.navbar__link--active {
    color: var(--color-dark);
}

.navbar__actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Language Toggle */
.lang-toggle {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    font-weight: 400;
    color: var(--color-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 0;
}

.lang-toggle__option {
    color: var(--color-secondary);
    transition: color var(--transition-base);
}

.lang-toggle__option--active {
    color: var(--color-dark);
}

.lang-toggle__separator {
    color: var(--color-divider);
    margin: 0 2px;
}

/* Hamburger */
.navbar__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 8px;
    padding: 0;
}

.navbar__hamburger-line {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--color-dark);
    transition: transform var(--transition-base), opacity var(--transition-base);
    transform-origin: center;
}

.navbar__hamburger--open .navbar__hamburger-line:first-child {
    transform: translateY(5px) rotate(45deg);
}

.navbar__hamburger--open .navbar__hamburger-line:last-child {
    transform: translateY(-5px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-primary);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.mobile-menu--open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 80px 24px 40px;
    position: relative;
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mobile-menu__link {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 300;
    color: var(--color-dark);
    margin: 16px 0;
    letter-spacing: 0.02em;
    transition: color var(--transition-base);
}

.mobile-menu__link:hover {
    color: var(--color-secondary);
}

.mobile-menu__lang {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-menu__lang-btn {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    color: var(--color-secondary);
    padding: 8px 4px;
    transition: color var(--transition-base);
}

.mobile-menu__lang-btn--active {
    color: var(--color-dark);
}

.mobile-menu__lang-separator {
    color: var(--color-divider);
    font-size: 0.85rem;
}


/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero {
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    position: relative;
    padding-top: 80px;
}

.hero__content {
    text-align: center;
    padding: 0 24px;
}

.hero__logo {
    max-width: min(500px, 70vw);
    height: auto;
    margin: 0 auto 40px;
    filter: brightness(0) opacity(0.8);
}

.hero__tagline {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--color-secondary);
}

.hero__scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.hero__scroll-line {
    width: 1px;
    height: 50px;
    background: var(--color-divider);
    animation: scrollPulse 2s ease-in-out infinite;
    transform-origin: top;
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.3;
        transform: scaleY(0.6);
    }
    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}


/* ===================================================================
   PLACEHOLDER SECTION STYLES (for empty sections in Batch 1)
   =================================================================== */
.about,
.classes,
.pricing,
.gallery,
.contact {
    padding: var(--section-padding);
}

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

.classes {
    background: var(--color-primary);
}

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

.gallery {
    background: var(--color-primary-light);
}

.contact {
    background: var(--color-primary);
}

.footer {
    background: var(--color-footer);
    padding: 60px 0;
}


/* ===================================================================
   ABOUT SECTION
   =================================================================== */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about__image-wrapper {
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: var(--color-primary-light);
}

.about__image {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.about__text-col {
    position: relative;
}

.about__text {
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--color-dark);
}

.about__watermark {
    position: absolute;
    opacity: 0.06;
    width: 300px;
    right: -40px;
    bottom: -40px;
    pointer-events: none;
}


/* ===================================================================
   CLASSES SECTION
   =================================================================== */
.classes__header {
    text-align: center;
    margin-bottom: 60px;
}

.classes__header .section-divider {
    margin-left: auto;
    margin-right: auto;
}

.classes__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.class-card {
    background: var(--color-white);
    border: 1px solid var(--color-divider);
    overflow: hidden;
    transition: transform var(--transition-base);
}

@media (hover: hover) {
    .class-card:hover {
        transform: translateY(-4px);
    }
}

.class-card__image-wrapper {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--color-primary-light);
}

.class-card__image {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.class-card__content {
    padding: 32px;
}

.class-card__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 12px;
}

.class-card__text {
    font-size: 0.95rem;
    color: var(--color-secondary);
    line-height: 1.7;
}


/* ===================================================================
   PRICING SECTION
   =================================================================== */
.pricing__header {
    text-align: center;
    margin-bottom: 60px;
}

.pricing__header .section-divider {
    margin-left: auto;
    margin-right: auto;
}

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pricing-card {
    border: 1px solid var(--color-divider);
    padding: 48px 32px;
    text-align: center;
    transition: transform var(--transition-base);
}

@media (hover: hover) {
    .pricing-card:hover {
        transform: translateY(-4px);
    }
}

.pricing-card__title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 24px;
    color: var(--color-dark);
}

.pricing-card__amount {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-dark);
}

.pricing-card__divider {
    width: 40px;
    height: 1px;
    background: var(--color-divider);
    margin: 24px auto;
}

.pricing-card__features {
    list-style: none;
}

.pricing-card__features li {
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--color-secondary);
    line-height: 1.6;
}

.pricing__cta {
    text-align: center;
    margin-top: 48px;
    font-size: 0.9rem;
    color: var(--color-secondary);
}

.pricing__cta a {
    color: var(--color-dark);
    border-bottom: 1px solid var(--color-divider);
    transition: border-color var(--transition-base);
}

.pricing__cta a:hover {
    border-color: var(--color-dark);
}


/* ===================================================================
   GALLERY SECTION
   =================================================================== */
.gallery__header {
    text-align: center;
    margin-bottom: 60px;
}

.gallery__header .section-divider {
    margin-left: auto;
    margin-right: auto;
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 250px;
    gap: 16px;
}

.gallery__item {
    border: none;
    padding: 0;
    background: none;
    cursor: pointer;
    overflow: hidden;
}

.gallery__item img {
    object-fit: cover;
    width: 100%;
    height: 100%;
    transition: transform var(--transition-slow);
}

@media (hover: hover) {
    .gallery__item:hover img {
        transform: scale(1.03);
    }
}

.gallery__item--tall {
    grid-row: span 2;
}

.gallery__item--wide {
    grid-column: span 2;
}


/* ===================================================================
   LIGHTBOX
   =================================================================== */
.lightbox {
    position: fixed;
    inset: 0;
    background: var(--color-lightbox-overlay);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.lightbox--open {
    opacity: 1;
    visibility: visible;
}

.lightbox__image {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
}

.lightbox__close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2.5rem;
    cursor: pointer;
    width: 44px;
    height: 44px;
}

.lightbox__prev,
.lightbox__next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 3rem;
    cursor: pointer;
    width: 44px;
    height: 44px;
}

.lightbox__prev {
    left: 16px;
}

.lightbox__next {
    right: 16px;
}

.lightbox__counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-divider);
    font-family: var(--font-body);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}


/* ===================================================================
   CONTACT SECTION
   =================================================================== */
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact__info {
    position: relative;
}

.contact__detail {
    margin-bottom: 32px;
}

.contact__detail-label {
    display: block;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 8px;
}

.contact__detail-value {
    font-size: 1.1rem;
    display: block;
    color: var(--color-dark);
}

a.contact__detail-value {
    border-bottom: 1px solid var(--color-divider);
    display: inline-block;
    padding-bottom: 2px;
    transition: border-color var(--transition-base);
}

a.contact__detail-value:hover {
    border-color: var(--color-dark);
}

.contact__watermark {
    position: absolute;
    opacity: 0.08;
    width: 250px;
    right: 0;
    bottom: -60px;
    pointer-events: none;
}

.contact__map {
    min-height: 400px;
    border: 1px solid var(--color-divider);
    overflow: hidden;
}

.contact__map iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
}


/* ===================================================================
   FOOTER
   =================================================================== */
.footer__content {
    text-align: center;
}

.footer__logo {
    width: 60px;
    margin: 0 auto 24px;
    opacity: 0.7;
}

.footer__links {
    margin-bottom: 16px;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
}

.footer__link {
    color: var(--color-dark);
    transition: color var(--transition-base);
}

.footer__link:hover {
    color: var(--color-secondary);
}

.footer__separator {
    margin: 0 16px;
    color: var(--color-divider);
}

.footer__copyright {
    font-size: 0.75rem;
    color: var(--color-secondary);
    letter-spacing: 0.1em;
}


/* ===================================================================
   RESPONSIVE -- MOBILE (< 768px)
   =================================================================== */
@media (max-width: 767px) {
    .about__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .classes__grid {
        grid-template-columns: 1fr;
    }

    .pricing__grid {
        grid-template-columns: 1fr;
    }

    .gallery__grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 180px;
    }

    .gallery__item--tall {
        grid-row: span 1;
    }

    .gallery__item--wide {
        grid-column: span 1;
    }

    .contact__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}


/* ===================================================================
   RESPONSIVE -- TABLET (768px+)
   =================================================================== */
@media (min-width: 768px) {
    .navbar__links {
        display: flex;
    }

    .navbar__hamburger {
        display: none;
    }
}


/* ===================================================================
   RESPONSIVE -- TABLET PRICING (768px - 1023px)
   =================================================================== */
@media (min-width: 768px) and (max-width: 1023px) {
    .pricing-card {
        padding: 32px 20px;
    }

    .gallery__grid {
        grid-template-columns: repeat(3, 1fr);
        grid-auto-rows: 200px;
    }
}


/* ===================================================================
   RESPONSIVE -- DESKTOP (1024px+)
   =================================================================== */
@media (min-width: 1024px) {
    .navbar__links {
        gap: 44px;
    }
}


/* ===================================================================
   SCROLL REVEAL ANIMATIONS
   =================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal-stagger--visible > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger--visible > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger--visible > *:nth-child(3) { transition-delay: 0.3s; }

.reveal-stagger--visible > * {
    opacity: 1;
    transform: translateY(0);
}


/* ===================================================================
   REDUCED MOTION
   =================================================================== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .reveal-stagger > * {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .hero__scroll-line {
        animation: none;
    }

    .mobile-menu {
        transition: none;
    }

    .navbar {
        transition: none;
    }

    .lightbox {
        transition: none;
    }

    .gallery__item img {
        transition: none;
    }
}