/* ============================================
   Perallon Richard A DMD — Dental Practice
   Clean Minimalist | Forest Green + Off-White
   ============================================ */

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

:root {
    --green-900: #0B3D2E;
    --green-800: #0F5133;
    --green-700: #14673F;
    --green-600: #1A7A4A;
    --green-500: #228B54;
    --green-400: #3DA86E;
    --green-100: #D1E8D8;
    --green-50:  #EAF5EC;
    
    --off-white: #F7F5F0;
    --off-white-light: #FBF9F5;
    --cream: #EFEBE3;
    --warm-gray: #8A8578;
    --dark: #1A1916;
    --dark-soft: #2D2A24;
    
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, sans-serif;
    
    --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--dark);
    background-color: var(--off-white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Loader ---------- */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--green-900);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader-tooth {
    color: var(--green-100);
    animation: toothPulse 1.2s ease-in-out infinite;
}

@keyframes toothPulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

/* ---------- Typography ---------- */
.section-eyebrow {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--green-600);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.15;
    color: var(--dark);
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 16px 32px;
    border-radius: 0;
    transition: all var(--transition-fast);
    border: 1.5px solid transparent;
}

.btn--dark {
    background: var(--green-900);
    color: #fff;
    border-color: var(--green-900);
}

.btn--dark:hover {
    background: var(--green-700);
    border-color: var(--green-700);
    transform: translateY(-1px);
}

.btn--light {
    background: #fff;
    color: var(--green-900);
    border-color: #fff;
}

.btn--light:hover {
    background: var(--green-50);
    transform: translateY(-1px);
}

.btn--outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255,255,255,0.5);
}

.btn--outline-light:hover {
    border-color: #fff;
    background: rgba(255,255,255,0.1);
}

.btn--full {
    width: 100%;
    justify-content: center;
}

/* ---------- Navigation ---------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition);
}

.nav.scrolled {
    background: rgba(247, 245, 240, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 14px 0;
    box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.nav.scrolled .nav__logo-text {
    color: var(--dark);
}

.nav.scrolled .nav__link {
    color: var(--dark-soft);
}

.nav.scrolled .nav__link:hover {
    color: var(--green-600);
}

.nav.scrolled .nav__cta {
    color: var(--green-700);
    border-color: var(--green-700);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}

.nav__logo-icon {
    color: #fff;
    transition: color var(--transition);
}

.nav.scrolled .nav__logo-icon {
    color: var(--green-700);
}

.nav__logo-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 400;
    color: #fff;
    letter-spacing: 0.02em;
    transition: color var(--transition);
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav__link {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.8);
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width var(--transition);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link:hover {
    color: #fff;
}

.nav__cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.9);
    border: 1px solid rgba(255,255,255,0.4);
    padding: 10px 20px;
    transition: all var(--transition-fast);
}

.nav__cta:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.8);
}

/* Mobile toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
    padding: 4px;
}

.nav__toggle-line {
    width: 24px;
    height: 1.5px;
    background: #fff;
    transition: all var(--transition);
    transform-origin: center;
}

.nav__toggle.active .nav__toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
}

.nav__toggle.active .nav__toggle-line:nth-child(2) {
    opacity: 0;
}

.nav__toggle.active .nav__toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(11, 61, 46, 0.88) 0%,
        rgba(15, 81, 51, 0.75) 50%,
        rgba(11, 61, 46, 0.85) 100%
    );
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 720px;
    padding-top: 80px;
}

.hero__eyebrow {
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--green-100);
    margin-bottom: 24px;
    font-weight: 500;
}

.hero__headline {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(3rem, 7vw, 5.5rem);
    line-height: 1.05;
    color: #fff;
    margin-bottom: 28px;
    letter-spacing: -0.02em;
}

.hero__subhead {
    font-size: 1.05rem;
    font-weight: 300;
    line-height: 1.8;
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    max-width: 520px;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.hero__scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Intro ---------- */
.intro {
    padding: 140px 0;
    background: var(--off-white);
}

.intro__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.intro__text {
    max-width: 480px;
}

.intro__body {
    font-size: 0.95rem;
    color: var(--warm-gray);
    line-height: 1.9;
    margin-bottom: 20px;
}

.intro__image {
    position: relative;
}

.intro__image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    position: relative;
    z-index: 1;
}

.intro__image-accent {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--green-200, #c8e0cf);
    z-index: 0;
}

/* ---------- Services ---------- */
.services {
    padding: 140px 0;
    background: var(--off-white-light);
}

.services__header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 80px;
}

.services__lead {
    font-size: 0.95rem;
    color: var(--warm-gray);
    line-height: 1.8;
}

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

.service-card {
    padding: 48px 36px;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.04);
    transition: all var(--transition);
    position: relative;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--green-600);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(11, 61, 46, 0.08);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    color: var(--green-700);
}

.service-card__title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--dark);
    margin-bottom: 14px;
}

.service-card__desc {
    font-size: 0.88rem;
    color: var(--warm-gray);
    line-height: 1.8;
}

/* ---------- About ---------- */
.about {
    padding: 140px 0;
    background: var(--off-white);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about__image-wrap {
    position: relative;
}

.about__image-wrap img {
    width: 100%;
    height: 600px;
    object-fit: cover;
}

.about__image-border {
    position: absolute;
    bottom: -24px;
    left: -24px;
    width: 60%;
    height: 60%;
    border: 1px solid var(--green-200, #c8e0cf);
    z-index: 0;
}

.about__content {
    max-width: 480px;
}

.about__body {
    font-size: 0.95rem;
    color: var(--warm-gray);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about__stats {
    display: flex;
    align-items: center;
    gap: 32px;
    margin: 40px 0;
    padding: 32px 0;
    border-top: 1px solid var(--cream);
    border-bottom: 1px solid var(--cream);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat__number {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--green-700);
    line-height: 1;
}

.stat__label {
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--warm-gray);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--cream);
}

/* ---------- New Patients ---------- */
.new-patients {
    padding: 140px 0;
    background: var(--green-900);
}

.new-patients__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.new-patients__content {
    padding-top: 20px;
}

.new-patients__content .section-eyebrow {
    color: var(--green-400);
}

.new-patients__content .section-title {
    color: #fff;
}

.new-patients__body {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.9;
    margin-bottom: 40px;
}

.new-patients__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.new-patients__list li {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
    font-weight: 400;
}

.new-patients__list li svg {
    color: var(--green-400);
    flex-shrink: 0;
}

/* Form */
.new-patients__form-wrap {
    position: relative;
}

.new-patients__form-card {
    background: #fff;
    padding: 48px;
}

.new-patients__form-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--dark);
    margin-bottom: 8px;
}

.new-patients__form-subtitle {
    font-size: 0.85rem;
    color: var(--warm-gray);
    margin-bottom: 32px;
    line-height: 1.7;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dark-soft);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 14px 0;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--dark);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--cream);
    outline: none;
    transition: border-color var(--transition-fast);
    border-radius: 0;
    -webkit-appearance: none;
}

.form-input::placeholder {
    color: var(--warm-gray);
    opacity: 0.6;
}

.form-input:focus {
    border-color: var(--green-600);
}

.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A8578' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0 center;
    padding-right: 24px;
}

.form-select option {
    background: #fff;
    color: var(--dark);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success svg {
    color: var(--green-600);
    margin-bottom: 16px;
}

.form-success h4 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-success p {
    font-size: 0.88rem;
    color: var(--warm-gray);
    line-height: 1.7;
}

/* ---------- Contact ---------- */
.contact {
    padding: 140px 0;
    background: var(--off-white-light);
}

.contact__header {
    text-align: center;
    margin-bottom: 64px;
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 0;
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.04);
}

.contact__info {
    padding: 64px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.contact__item {
    display: flex;
    gap: 20px;
}

.contact__item-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--cream);
    color: var(--green-700);
    flex-shrink: 0;
}

.contact__item-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--dark);
    margin-bottom: 6px;
}

.contact__item-text {
    font-size: 0.88rem;
    color: var(--warm-gray);
    line-height: 1.8;
}

.contact__item-text a {
    color: var(--green-700);
    transition: color var(--transition-fast);
}

.contact__item-text a:hover {
    color: var(--green-500);
}

.contact__map-btn {
    align-self: flex-start;
}

.contact__map {
    min-height: 400px;
}

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

/* ---------- Footer ---------- */
.footer {
    background: var(--dark);
    padding: 80px 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 64px;
    padding-bottom: 64px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 400;
    color: #fff;
    margin-bottom: 16px;
}

.footer__logo svg {
    color: var(--green-400);
}

.footer__tagline {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.45);
    line-height: 1.8;
    max-width: 280px;
}

.footer__col-title {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-bottom: 20px;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__links a {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.65);
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--green-400);
}

.footer__contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__contact p {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.45);
    line-height: 1.8;
}

.footer__contact a {
    color: rgba(255,255,255,0.65);
    transition: color var(--transition-fast);
}

.footer__contact a:hover {
    color: var(--green-400);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 0;
}

.footer__bottom p {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.3);
}

/* ---------- Scroll Reveal (progressive enhancement) ---------- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .intro__grid,
    .about__grid,
    .new-patients__inner {
        gap: 48px;
    }
    
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav__toggle {
        display: flex;
    }
    
    .nav__links {
        position: fixed;
        inset: 0;
        background: var(--green-900);
        flex-direction: column;
        justify-content: center;
        gap: 28px;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }
    
    .nav__links.open {
        opacity: 1;
        visibility: visible;
    }
    
    .nav__link {
        color: rgba(255,255,255,0.8);
        font-size: 0.9rem;
    }
    
    .nav__link:hover {
        color: #fff;
    }
    
    .nav__cta {
        color: rgba(255,255,255,0.9);
        border-color: rgba(255,255,255,0.4);
    }
    
    .hero__headline {
        font-size: clamp(2.4rem, 10vw, 3.6rem);
    }
    
    .hero__actions {
        flex-direction: column;
    }
    
    .hero__actions .btn {
        justify-content: center;
    }
    
    .intro__grid,
    .about__grid,
    .new-patients__inner {
        grid-template-columns: 1fr;
    }
    
    .intro__image {
        order: -1;
    }
    
    .intro__image img {
        height: 350px;
    }
    
    .about__image-wrap img {
        height: 400px;
    }
    
    .services__grid {
        grid-template-columns: 1fr;
    }
    
    .contact__grid {
        grid-template-columns: 1fr;
    }
    
    .contact__info {
        padding: 40px;
    }
    
    .new-patients__form-card {
        padding: 32px;
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .about__stats {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    
    .intro,
    .services,
    .about,
    .new-patients,
    .contact {
        padding: 80px 0;
    }
    
    .hero {
        min-height: 600px;
    }
}