/* ========================================
   Rosa Customized Tailoring — Styles
   Classic & Elegant Design System
======================================= */

/* --- CSS Custom Properties --- */
:root {
    --color-midnight-900: #0D1F3C;
    --color-midnight-800: #1B3A5C;
    --color-midnight-700: #2A4F78;
    --color-mint-400: #4DB894;
    --color-mint-500: #2E9A78;
    --color-cream: #FDFCFA;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', system-ui, sans-serif;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-cream);
    color: var(--color-midnight-800);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-cream);
}
::-webkit-scrollbar-thumb {
    background: var(--color-mint-400);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-mint-500);
}

/* --- Selection --- */
::selection {
    background: var(--color-mint-400);
    color: var(--color-cream);
}

/* --- Navigation --- */
#navbar {
    background: transparent;
    transition: background var(--transition-medium), box-shadow var(--transition-medium);
}

#navbar.scrolled {
    background: rgba(253, 252, 250, 0.97);
    box-shadow: 0 1px 20px rgba(13, 31, 60, 0.08);
    backdrop-filter: blur(10px);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-mint-400);
    transition: width var(--transition-medium);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* --- Mobile Menu --- */
#mobile-menu {
    background: rgba(253, 252, 250, 0.98);
    backdrop-filter: blur(20px);
}

.mobile-link {
    font-family: var(--font-serif);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* Menu icon animation */
#menu-btn.active #bar1 {
    transform: rotate(45deg) translate(5px, 5px);
}
#menu-btn.active #bar2 {
    opacity: 0;
}
#menu-btn.active #bar3 {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 1.5rem;
}

/* --- Hero --- */
.hero-eyebrow {
    animation: slideUp 0.8s ease forwards;
}
.hero-title {
    animation: slideUp 0.8s ease 0.15s forwards;
    opacity: 0;
    transform: translateY(100%);
}
.hero-subtitle {
    animation: slideUp 0.8s ease 0.3s forwards;
    opacity: 0;
    transform: translateY(30px);
}
.hero-cta-primary,
.hero-cta-secondary {
    animation: slideUp 0.8s ease 0.45s forwards;
    opacity: 0;
    transform: translateY(30px);
}
.hero-stats {
    animation: slideUp 0.8s ease 0.6s forwards;
    opacity: 0;
    transform: translateY(30px);
}
.hero-image-wrapper {
    animation: fadeIn 1s ease 0.3s forwards;
    opacity: 0;
}

@keyframes slideUp {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

/* --- Scroll Indicator --- */
.scroll-indicator {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-8px); }
    60% { transform: translateX(-50%) translateY(-4px); }
}

/* --- Section Headers --- */
.section-eyebrow {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.section-title {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.1s, transform 0.6s ease 0.1s;
}
.section-line {
    opacity: 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

.section-eyebrow.visible,
.section-title.visible,
.section-line.visible {
    opacity: 1;
    transform: translateY(0) scaleX(1);
}

/* --- Divider --- */
.divider-line {
    opacity: 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.divider-line.visible {
    opacity: 1;
    transform: scaleX(1);
}

/* --- Service Cards --- */
.service-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}
.service-card:nth-child(1) { transition-delay: 0s; }
.service-card:nth-child(2) { transition-delay: 0.1s; }
.service-card:nth-child(3) { transition-delay: 0.2s; }
.service-card:nth-child(4) { transition-delay: 0.3s; }
.service-card:nth-child(5) { transition-delay: 0.4s; }
.service-card:nth-child(6) { transition-delay: 0.5s; }

.service-card:hover .service-number {
    color: var(--color-mint-500);
    transition: color var(--transition-fast);
}

/* --- About Section --- */
.about-eyebrow {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.about-title {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.1s, transform 0.6s ease 0.1s;
}
.about-line {
    opacity: 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}
.about-eyebrow.visible,
.about-title.visible,
.about-line.visible {
    opacity: 1;
    transform: translateY(0) scaleX(1);
}

/* --- Gallery --- */
.gallery-item {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.gallery-item.visible {
    opacity: 1;
    transform: scale(1);
}
.gallery-item:nth-child(1) { transition-delay: 0s; }
.gallery-item:nth-child(2) { transition-delay: 0.1s; }
.gallery-item:nth-child(3) { transition-delay: 0.2s; }
.gallery-item:nth-child(4) { transition-delay: 0.3s; }
.gallery-item:nth-child(5) { transition-delay: 0.4s; }

/* --- Testimonial Cards --- */
.testimonial-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.testimonial-card.visible {
    opacity: 1;
    transform: translateY(0);
}
.testimonial-card:nth-child(1) { transition-delay: 0s; }
.testimonial-card:nth-child(2) { transition-delay: 0.15s; }
.testimonial-card:nth-child(3) { transition-delay: 0.3s; }

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(13, 31, 60, 0.1);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

/* --- Contact Items --- */
.contact-item {
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.contact-item.visible {
    opacity: 1;
    transform: translateX(0);
}
.contact-item:nth-child(1) { transition-delay: 0s; }
.contact-item:nth-child(2) { transition-delay: 0.1s; }
.contact-item:nth-child(3) { transition-delay: 0.2s; }

/* --- Footer --- */
footer a {
    position: relative;
}
footer a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-mint-400);
    transition: width var(--transition-fast);
}
footer a:hover::after {
    width: 100%;
}

/* --- Utility --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .hero-title {
        font-size: 2.5rem !important;
    }

    .hero-image-wrapper {
        margin-top: 2rem;
    }

    .hero-stats {
        gap: 8px !important;
    }

    .section-title {
        font-size: 2rem !important;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero-title {
        font-size: 2rem !important;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem !important;
    }

    .hero-stats > div:not(:last-child) {
        border-right: none;
        border-bottom: 1px solid rgba(42, 79, 120, 0.2);
        padding-bottom: 1rem;
    }
}

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