:root {
    --ink: #151820;
    --obsidian: #090d10;
    --emerald: #0f675e;
    --deep-emerald: #073c38;
    --sapphire: #155d8a;
    --ruby: #a73445;
    --amber: #d7b766;
    --cream: #f6f1e7;
    --mist: #eef7f4;
    --paper: #ffffff;
    --muted: #68727f;
    --line: rgba(21, 24, 32, .14);
    --shadow: 0 24px 70px rgba(21, 24, 32, .16);
    --radius: 8px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 14% 8%, rgba(15, 103, 94, .11), transparent 26rem),
        radial-gradient(circle at 90% 22%, rgba(21, 93, 138, .12), transparent 28rem),
        var(--cream);
    color: var(--ink);
    font-family: Inter, Arial, sans-serif;
    line-height: 1.5;
}

body.nav-open {
    overflow: hidden;
}

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

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

button,
input,
textarea {
    font: inherit;
}

h1,
h2,
h3 {
    margin: 0;
    color: var(--ink);
    font-family: "Playfair Display", Georgia, serif;
    font-weight: 700;
    letter-spacing: 0;
    line-height: .98;
    overflow-wrap: break-word;
}

p {
    color: var(--muted);
    font-size: 1.02rem;
}

.container {
    width: min(1440px, calc(100% - 72px));
    margin: 0 auto;
}

header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 20;
    border-bottom: 1px solid transparent;
    background: transparent;
    color: var(--paper);
    transition: background 220ms ease, border-color 220ms ease, box-shadow 220ms ease, backdrop-filter 220ms ease;
}

header.scrolled,
header.menu-active {
    border-bottom-color: rgba(255, 255, 255, .14);
    background: rgba(9, 13, 16, .84);
    box-shadow: 0 18px 50px rgba(0, 0, 0, .22);
    backdrop-filter: blur(14px);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 96px;
    gap: 48px;
    padding: 12px 0;
}

.logo a {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--paper);
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(1.55rem, 3vw, 2.15rem);
    font-weight: 700;
    line-height: 1;
    text-shadow: 0 2px 16px rgba(0, 0, 0, .36);
    white-space: nowrap;
}

.brand-mark {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0 10px 22px rgba(0, 0, 0, .38));
    transform: scale(2.05);
    transform-origin: center;
}

.logo strong {
    color: var(--amber);
    font: inherit;
}

nav ul {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(18px, 2.2vw, 34px);
    list-style: none;
}

nav a {
    color: rgba(255, 255, 255, .96);
    font-size: 1rem;
    font-weight: 900;
    text-shadow: 0 2px 12px rgba(0, 0, 0, .42);
    white-space: nowrap;
    transition: color 180ms ease;
}

nav a:hover,
nav a[aria-current="page"] {
    color: var(--amber);
}

nav a[aria-current="page"]::after {
    display: none;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    place-items: center;
    flex: 0 0 auto;
    border: 1px solid rgba(255, 255, 255, .26);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, .11);
    color: var(--paper);
    cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    content: "";
}

.nav-toggle span {
    position: relative;
}

.nav-toggle span::before {
    position: absolute;
    top: -6px;
}

.nav-toggle span::after {
    position: absolute;
    top: 6px;
}

body.nav-open .nav-toggle span {
    background: transparent;
}

body.nav-open .nav-toggle span::before {
    top: 0;
    transform: rotate(45deg);
}

body.nav-open .nav-toggle span::after {
    top: 0;
    transform: rotate(-45deg);
}

.btn,
.gold-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    background: var(--amber);
    color: #101416;
    box-shadow: 0 16px 34px rgba(215, 183, 102, .22);
    font-weight: 900;
    line-height: 1;
    text-align: center;
    transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.btn:hover,
.gold-link:hover {
    background: #e5c879;
    transform: translateY(-1px);
}

.btn.secondary {
    border-color: rgba(255, 255, 255, .44);
    background: rgba(255, 255, 255, .1);
    color: var(--paper);
    box-shadow: none;
}

.btn.secondary:hover {
    border-color: rgba(255, 255, 255, .72);
    background: rgba(255, 255, 255, .18);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 16px;
    color: var(--amber);
    font-size: .78rem;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: uppercase;
}

.eyebrow::before {
    width: 34px;
    height: 2px;
    background: currentColor;
    content: "";
}

.hero {
    position: relative;
    min-height: 86vh;
    display: grid;
    align-items: end;
    padding: 132px 0 88px;
    overflow: hidden;
    background:
        linear-gradient(90deg, rgba(5, 18, 20, .93), rgba(5, 18, 20, .66) 48%, rgba(5, 18, 20, .28)),
        linear-gradient(0deg, rgba(5, 18, 20, .9), rgba(5, 18, 20, .04) 52%),
        url("../images/hero-miners-gems.png") center / cover;
    color: var(--paper);
}

.hero::after {
    position: absolute;
    inset: auto 0 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(215, 183, 102, .8), rgba(79, 207, 191, .6), transparent);
    content: "";
}

.hero::before {
    position: absolute;
    right: -12vw;
    bottom: -14vw;
    width: min(46vw, 620px);
    aspect-ratio: 1;
    border: 1px solid rgba(215, 183, 102, .24);
    background:
        linear-gradient(135deg, rgba(255, 255, 255, .08), transparent 42%),
        linear-gradient(45deg, transparent 48%, rgba(215, 183, 102, .26) 49%, rgba(215, 183, 102, .26) 51%, transparent 52%);
    clip-path: polygon(50% 0, 100% 38%, 82% 100%, 18% 100%, 0 38%);
    content: "";
    opacity: .42;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero h1 {
    max-width: 980px;
    color: var(--paper);
    font-size: clamp(5rem, 9vw, 8.4rem);
}

.hero p {
    max-width: 700px;
    margin-top: 24px;
    color: rgba(255, 255, 255, .86);
    font-size: 1.22rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.gem-index {
    position: relative;
    z-index: 3;
    margin-top: -72px;
    padding-bottom: 30px;
}

.gem-index-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid rgba(215, 183, 102, .24);
    border-radius: var(--radius);
    background: rgba(7, 60, 56, .92);
    box-shadow: 0 24px 70px rgba(5, 18, 20, .24);
    overflow: hidden;
    backdrop-filter: blur(14px);
}

.gem-index article {
    position: relative;
    min-height: 190px;
    padding: 28px;
    border-right: 1px solid rgba(215, 183, 102, .18);
    overflow: hidden;
}

.gem-index article::after {
    position: absolute;
    right: -36px;
    bottom: -50px;
    width: 160px;
    aspect-ratio: 1;
    border: 1px solid rgba(215, 183, 102, .18);
    clip-path: polygon(50% 0, 100% 38%, 82% 100%, 18% 100%, 0 38%);
    content: "";
}

.gem-index article:last-child {
    border-right: 0;
}

.gem-index span {
    display: inline-block;
    color: var(--amber);
    font-size: .8rem;
    font-weight: 900;
}

.gem-index h2 {
    margin-top: 38px;
    color: var(--paper);
    font-size: clamp(1.9rem, 3vw, 2.8rem);
}

.gem-index p {
    max-width: 360px;
    margin-top: 12px;
    color: rgba(255, 255, 255, .72);
}

.section,
.content-section,
.contact-section {
    padding: 92px 0;
}

.gem-index + .section {
    padding-top: 62px;
}

.section-header {
    display: grid;
    grid-template-columns: minmax(0, .95fr) minmax(280px, .62fr);
    gap: 38px;
    align-items: end;
    margin-bottom: 36px;
}

.section-header.center {
    display: block;
    max-width: 920px;
    margin-right: auto;
    margin-left: auto;
    text-align: center;
}

.section-header h2,
.intro-copy h2,
.story-copy h2,
.content-panel h2,
.contact-grid h2 {
    font-size: clamp(3rem, 6vw, 5.3rem);
}

.section-header p,
.intro-copy p,
.story-copy p,
.content-section p,
.contact-grid p {
    margin-top: 18px;
}

.intro-grid,
.story-grid,
.split-panel,
.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr);
    gap: 28px;
    align-items: stretch;
}

.intro-copy,
.story-copy,
.split-panel > div:first-child {
    align-self: center;
}

.intro-copy .gold-link,
.story-copy .gold-link,
.split-panel .btn {
    margin-top: 28px;
}

.image-stack {
    position: relative;
    min-height: 520px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.feature-image {
    width: 100%;
    height: 100%;
    min-height: 520px;
    object-fit: cover;
}

.image-note {
    position: absolute;
    inset: auto 22px 22px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: var(--radius);
    background: rgba(9, 13, 16, .82);
    color: var(--paper);
    font-weight: 900;
}

.collections {
    background:
        linear-gradient(180deg, #ffffff, #f1f8f5);
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.card {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: 0 18px 46px rgba(21, 24, 32, .09);
    overflow: hidden;
    transition: transform 220ms ease, box-shadow 220ms ease;
}

.card::before {
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: linear-gradient(90deg, var(--emerald), var(--sapphire), var(--amber));
    content: "";
    z-index: 1;
}

.card:hover {
    box-shadow: 0 26px 66px rgba(21, 24, 32, .15);
    transform: translateY(-4px);
}

.card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.card-body {
    padding: 22px;
}

.card-body h3 {
    color: var(--ink);
    font-size: 1.7rem;
    line-height: 1.06;
}

.card-body p {
    margin-top: 12px;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.features div {
    min-height: 220px;
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(15, 103, 94, .08), transparent 42%),
        var(--paper);
    box-shadow: 0 14px 38px rgba(21, 24, 32, .07);
}

.features h3 {
    color: var(--deep-emerald);
    font-size: 2rem;
}

.features p {
    margin-top: 12px;
}

.page-banner {
    min-height: 520px;
    display: grid;
    align-items: end;
    padding: 140px 0 72px;
    background:
        linear-gradient(90deg, rgba(5, 18, 20, .92), rgba(5, 18, 20, .58) 52%, rgba(5, 18, 20, .22)),
        linear-gradient(0deg, rgba(5, 18, 20, .82), rgba(5, 18, 20, 0) 54%),
        url("../images/gemstone-banner.jpg") center / cover;
    color: var(--paper);
}

.page-banner .container {
    padding: 0;
}

.page-banner h1 {
    max-width: 1040px;
    color: var(--paper);
    font-size: clamp(4rem, 7.5vw, 7.2rem);
}

.page-banner p {
    max-width: 760px;
    margin-top: 22px;
    color: rgba(255, 255, 255, .84);
    font-size: 1.18rem;
}

.content-panel {
    max-width: 960px;
}

.service-list {
    display: grid;
    gap: 14px;
}

.service-list p {
    margin: 0;
    padding: 20px;
    border: 1px solid var(--line);
    border-left: 6px solid var(--amber);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: 0 14px 38px rgba(21, 24, 32, .07);
}

.gallery-band {
    background: var(--paper);
}

.gallery {
    text-align: left;
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr .8fr;
    grid-auto-rows: 270px;
    gap: 16px;
    margin-top: 36px;
}

.gallery-grid img {
    width: 100%;
    height: 100%;
    border-radius: var(--radius);
    object-fit: cover;
    box-shadow: 0 18px 46px rgba(21, 24, 32, .1);
    transition: transform 260ms ease;
}

.gallery-grid img:first-child {
    grid-row: span 2;
}

.gallery-grid img:hover {
    transform: scale(1.025);
}

.contact-banner {
    background:
        linear-gradient(90deg, rgba(7, 60, 56, .95), rgba(21, 24, 32, .94)),
        url("../images/minerals.jpg") center / cover;
    color: var(--paper);
}

.contact-banner .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: 70px 0;
}

.contact-banner h2 {
    max-width: 780px;
    color: var(--paper);
    font-size: clamp(2.7rem, 5vw, 4.5rem);
}

.contact-banner p {
    max-width: 680px;
    color: rgba(255, 255, 255, .76);
}

.contact-grid {
    grid-template-columns: .85fr 1.15fr;
    align-items: start;
}

.contact-methods {
    display: grid;
    gap: 14px;
    margin-top: 28px;
}

.contact-methods a,
.contact-methods p {
    display: block;
    margin: 0;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    color: var(--ink);
    box-shadow: 0 14px 38px rgba(21, 24, 32, .07);
    font-weight: 900;
}

.contact-methods span {
    display: block;
    margin-bottom: 6px;
    color: var(--emerald);
    font-size: .78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.contact-form {
    display: grid;
    gap: 14px;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: var(--shadow);
}

.hidden-field {
    display: none;
}

.field label {
    display: block;
    margin-bottom: 8px;
    color: var(--ink);
    font-size: .84rem;
    font-weight: 900;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid rgba(21, 24, 32, .18);
    border-radius: var(--radius);
    padding: 14px 15px;
    background: #fff;
    color: var(--ink);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--emerald);
    outline: 3px solid rgba(15, 103, 94, .14);
}

.contact-form button {
    width: fit-content;
    border: 0;
    cursor: pointer;
}

.contact-form button:disabled {
    cursor: wait;
    opacity: .72;
    transform: none;
}

.form-status {
    min-height: 0;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: var(--radius);
    color: var(--ink);
    font-weight: 800;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 220ms ease, transform 220ms ease, padding 220ms ease, border-color 220ms ease;
}

.form-status.is-loading,
.form-status.is-success,
.form-status.is-error {
    min-height: 48px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    opacity: 1;
    transform: translateY(0);
}

.form-status.is-loading {
    background: #f6f1e7;
    color: var(--muted);
}

.form-status.is-success {
    border-color: rgba(15, 103, 94, .28);
    background: rgba(15, 103, 94, .1);
    color: var(--deep-emerald);
}

.form-status.is-error {
    border-color: rgba(167, 52, 69, .28);
    background: rgba(167, 52, 69, .1);
    color: var(--ruby);
}

footer {
    padding: 34px 0;
    background: var(--ink);
    color: rgba(255, 255, 255, .62);
    font-size: .9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: minmax(240px, 1fr) auto;
    align-items: center;
    gap: 20px;
}

footer h3 {
    color: var(--paper);
    font-size: 1.35rem;
}

footer p,
footer a {
    color: rgba(255, 255, 255, .72);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    color: rgba(255, 255, 255, .78);
    font-weight: 900;
}

.copyright {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, .1);
}

@media (max-width: 980px) {
    .nav-toggle {
        display: grid;
    }

    nav {
        position: fixed;
        inset: 96px 0 auto;
        display: none;
        border-bottom: 1px solid rgba(255, 255, 255, .16);
        background: rgba(9, 13, 16, .97);
    }

    body.nav-open nav {
        display: block;
    }

    nav ul {
        width: min(1440px, calc(100% - 40px));
        display: grid;
        gap: 0;
        margin: 0 auto;
        padding: 18px 0 24px;
    }

    nav a {
        display: block;
        padding: 12px 0;
    }

    .section-header,
    .intro-grid,
    .story-grid,
    .split-panel,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 6rem;
    }

    .cards,
    .features,
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid img:first-child {
        grid-row: span 1;
    }

    .contact-banner .container {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 680px) {
    .container {
        width: min(100% - 28px, 1440px);
    }

    .nav-container {
        min-height: 86px;
        gap: 16px;
    }

    nav {
        inset: 86px 0 auto;
    }

    .logo a {
        font-size: 2rem;
    }

    .hero {
        min-height: 74vh;
        padding: 112px 0 58px;
        background-position: 62% center;
    }

    .hero h1 {
        font-size: 3.65rem;
    }

    .hero p {
        font-size: 1.05rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn,
    .contact-banner .btn {
        width: 100%;
    }

    .gem-index-grid,
    .cards,
    .features,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .gem-index {
        margin-top: -28px;
    }

    .gem-index article {
        min-height: 170px;
        border-right: 0;
        border-bottom: 1px solid rgba(215, 183, 102, .18);
    }

    .gem-index article:last-child {
        border-bottom: 0;
    }

    .section,
    .content-section,
    .contact-section {
        padding: 64px 0;
    }

    .section-header h2,
    .intro-copy h2,
    .story-copy h2,
    .content-panel h2,
    .contact-grid h2 {
        font-size: 2.65rem;
    }

    .page-banner {
        min-height: 430px;
        padding: 112px 0 48px;
    }

    .page-banner h1 {
        font-size: 3.2rem;
    }

    .image-stack,
    .feature-image {
        min-height: 360px;
    }

    .gallery-grid {
        grid-auto-rows: 250px;
    }

    .contact-form {
        padding: 22px;
    }

    .contact-form button {
        width: 100%;
    }

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