/* ============================================
   YENJOR Shared Styles — riri editorial
   ============================================ */

/* — FONTS — */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Inter:wght@200;300;400;500;600&display=swap');

/* — BASE — */
:root {
    --bone: #f7f5f1;
    --ink: #0a0a0a;
    --brass: #b89968;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bone);
    color: var(--ink);
    font-weight: 300;
    letter-spacing: 0.01em;
    line-height: 1.6;
    margin: 0;
}

/* — NAV BAR — */
.riri-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    padding: 1.25rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.4s ease;
    background: rgba(247,245,241,0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(10,10,10,0.06);
    color: var(--ink);
}
@media (max-width: 640px) { .riri-nav { padding: 1rem 1.25rem; } }

.riri-nav.scrolled {
    background: rgba(247,245,241,0.95);
    box-shadow: 0 1px 0 rgba(10,10,10,0.04);
}

.riri-nav .nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}
.riri-nav .nav-logo img {
    height: 1.8rem;
    width: auto;
    object-fit: contain;
}

.riri-nav .nav-links {
    display: flex;
    gap: 2.25rem;
}
@media (max-width: 640px) { .riri-nav .nav-links { gap: 1.25rem; } }

.riri-nav .nav-link {
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    text-decoration: none;
    color: inherit;
    opacity: 0.65;
    transition: opacity 0.3s;
}
.riri-nav .nav-link:hover,
.riri-nav .nav-link.active { opacity: 1; }

/* Mobile nav toggle */
.riri-nav .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 60;
}
.riri-nav .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: all 0.3s ease;
}
.riri-nav .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.riri-nav .nav-toggle.active span:nth-child(2) { opacity: 0; }
.riri-nav .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
    .riri-nav .nav-toggle { display: flex; }
    .riri-nav .nav-links {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(247,245,241,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.4s ease;
    }
    .riri-nav .nav-links.open {
        opacity: 1;
        pointer-events: auto;
    }
    .riri-nav .nav-links .nav-link {
        font-size: 1rem;
        letter-spacing: 0.2em;
    }
}

/* — FOOTER — */
.riri-footer {
    background: var(--bone);
    padding: 3rem 2.5rem 2rem;
    border-top: 1px solid rgba(10,10,10,0.08);
}
@media (max-width: 640px) { .riri-footer { padding: 2.5rem 1.5rem 1.5rem; } }

.riri-footer .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
}
@media (max-width: 768px) { .riri-footer .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; } }

.riri-footer .footer-brand img {
    height: 1.4rem;
    width: auto;
    object-fit: contain;
}
.riri-footer .footer-tagline {
    font-size: 0.8rem;
    opacity: 0.55;
    max-width: 32ch;
    line-height: 1.7;
    margin-top: 0.75rem;
}
.riri-footer .footer-cert {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    opacity: 0.6;
    margin-top: 0.75rem;
}
.riri-footer .footer-cert img { width: 14px; height: 14px; }

.riri-footer .footer-col-title {
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    opacity: 0.4;
    margin-bottom: 1rem;
    font-weight: 400;
}
.riri-footer .footer-link {
    display: block;
    font-size: 0.8rem;
    color: inherit;
    opacity: 0.75;
    text-decoration: none;
    padding: 0.25rem 0;
    transition: opacity 0.3s;
}
.riri-footer .footer-link:hover { opacity: 1; color: var(--brass); }

.riri-footer .footer-social {
    display: flex;
    gap: 1.25rem;
}
.riri-footer .footer-social a {
    opacity: 0.6;
    color: inherit;
    transition: all 0.3s;
    text-decoration: none;
}
.riri-footer .footer-social a:hover { opacity: 1; color: var(--brass); }

.riri-footer .footer-bottom {
    max-width: 1200px;
    margin: 3rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(10,10,10,0.06);
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    opacity: 0.4;
    letter-spacing: 0.05em;
}
@media (max-width: 640px) { .riri-footer .footer-bottom { flex-direction: column; gap: 0.5rem; } }

/* — TYPOGRAPHY HELPERS — */
.riri-serif {
    font-family: 'Cormorant Garamond', serif;
}
.riri-eyebrow {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.5;
    font-weight: 400;
}
.riri-heading {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    line-height: 1.05;
    letter-spacing: -0.01em;
}

/* — SCROLL ANIMATION — */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}
.fade-in.in {
    opacity: 1;
    transform: translateY(0);
}

/* — COMMON SECTION PADDING — */
.riri-section {
    padding: 7rem 2.5rem;
}
@media (max-width: 640px) { .riri-section { padding: 4rem 1.5rem; } }

/* — PAGE HERO (for subpages) — */
.riri-page-hero {
    padding: 10rem 2.5rem 4rem;
    text-align: center;
}
@media (max-width: 640px) { .riri-page-hero { padding: 7rem 1.5rem 3rem; } }
.riri-page-hero h1 {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 300;
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}
.riri-page-hero p {
    font-size: 0.85rem;
    color: rgba(10,10,10,0.55);
    max-width: 42ch;
    margin: 0 auto;
    line-height: 1.7;
    letter-spacing: 0.02em;
}

/* — EDITORIAL LABEL — */
.riri-label {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.45;
    font-weight: 400;
}