/* =========================================================================
   STRIVANA - STYLESHEET
   Premium, accessible, modern design system for senior wellness practice.
   ========================================================================= */

/* --- CSS VARIABLES & TOKENS --- */
:root {
    /* Brand Colors */
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-gold: #C6A75E;
    --color-green-deep: #0B3D2E;
    --color-purple-royal: #4B2E83;

    /* Derived/Tinted Colors */
    --color-bg-light: #FAFAFA;
    --color-green-soft: #F0F4F2;
    --color-gold-light: #FDFBF5;
    --color-text-main: #2D3748;
    --color-text-muted: #4A5568;
    --color-border: #E2E8F0;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-logo: 'Playfair Display', serif;
    --base-font-size: 18px;
    /* Slightly larger for senior readability */

    /* Spacing & Layout */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    --container-max-width: 1200px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;

    /* Effects */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    --shadow-premium: 0 20px 40px -10px rgba(11, 61, 46, 0.1);
    --transition-fast: 0.2s ease-in-out;
    --transition-base: 0.3s ease-in-out;
}

/* --- RESET & GLOBAL STYLES --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--base-font-size);
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-main);
    background-color: var(--color-bg-light);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: var(--color-text-main);
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

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

/* --- UTILITIES --- */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-padding {
    padding: var(--spacing-xxl) 0;
}

.text-center {
    text-align: center;
}

.text-white {
    color: var(--color-white) !important;
}

.text-gold {
    color: var(--color-gold) !important;
}

/* Section Headers */
.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-green-deep);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.title-underline {
    width: 60px;
    height: 4px;
    background-color: var(--color-gold);
    border-radius: 2px;
    margin-bottom: var(--spacing-md);
}

.title-underline.center {
    margin: 0 auto var(--spacing-md);
}

.title-underline.gold {
    background-color: var(--color-gold);
}

.section-desc {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    border: none;
}

.btn-primary {
    background-color: var(--color-green-deep);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: #082d22;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

.btn-gold {
    background-color: var(--color-gold);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.btn-gold:hover {
    background-color: #b5954d;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

.btn-block {
    display: block;
    width: 100%;
}

/* --- NAVIGATION --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 24px 0;
    background-color: transparent;
    transition: all var(--transition-base);
    z-index: 1000;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 16px 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-family: var(--font-logo);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-green-deep);
    letter-spacing: 8px;
    /* Added elegant spacing between letters */
    margin-right: -8px;
    /* Compensate for the extra space on the last letter for perfect centering/alignment */
}

.logo.footer-logo {
    color: var(--color-gold);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    font-size: 1rem;
    position: relative;
}

.nav-links a:not(.btn-nav)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gold);
    transition: width var(--transition-fast);
}

.nav-links a:not(.btn-nav):hover::after {
    width: 100%;
}

.nav-links a:not(.btn-nav):hover {
    color: var(--color-gold);
}

.btn-nav {
    background-color: var(--color-gold);
    color: var(--color-white) !important;
    padding: 10px 24px;
    border-radius: 30px;
    transition: all var(--transition-base) !important;
}

.btn-nav:hover {
    background-color: #b5954d;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-green-deep);
}

/* --- HERO SECTION --- */
.hero {
    position: relative;
    padding-top: 140px;
    padding-bottom: var(--spacing-xxl);
    background-color: var(--color-white);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--color-gold-light);
    color: var(--color-gold);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 30px;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(198, 167, 94, 0.2);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-green-deep);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
}

.image-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
}

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

.shadow-premium {
    box-shadow: var(--shadow-premium);
}

.hero-bg-accent {
    position: absolute;
    top: -10%;
    right: -5%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(198, 167, 94, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 1;
    border-radius: 50%;
}

/* --- ABOUT SECTION --- */
.about {
    background-color: var(--color-green-soft);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-xl);
}

.lead-text {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-green-deep);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 24px;
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base);
}

.feature-item:hover {
    transform: translateX(10px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background-color: var(--color-gold-light);
    color: var(--color-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 1.15rem;
    color: var(--color-green-deep);
}

/* --- SERVICES SECTION --- */
.services {
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(198, 167, 94, 0.2);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background-color: var(--color-gold);
    transition: height var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-premium);
    border-color: var(--color-gold);
}

.service-card:hover::before {
    height: 100%;
}

.icon-wrapper {
    width: 64px;
    height: 64px;
    background-color: var(--color-bg-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-purple-royal);
    transition: all var(--transition-base);
}

.icon-wrapper img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.service-card:hover .icon-wrapper {
    background-color: var(--color-purple-royal);
    color: var(--color-white);
}

.service-card h3 {
    font-size: 1.35rem;
    color: var(--color-green-deep);
    margin-bottom: 16px;
    font-weight: 600;
}

.service-card p {
    color: var(--color-text-muted);
}

/* --- VISION SECTION --- */
.vision {
    background-color: var(--color-green-deep);
    position: relative;
    overflow: hidden;
}

.vision-container {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
}

.vision-content {
    max-width: 800px;
}

.vision-lead {
    font-size: 1.8rem;
    color: var(--color-white);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    line-height: 1.4;
}

.vision-subheading {
    color: var(--color-gold);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.vision-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: var(--spacing-lg);
}

.vision-list li {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--color-white);
    font-size: 1.15rem;
}

.check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: rgba(198, 167, 94, 0.2);
    color: var(--color-gold);
    border-radius: 50%;
    font-weight: bold;
    font-size: 0.9rem;
}

.vision-closing {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    font-style: italic;
    font-size: 1.1rem;
}

.vision-circle {
    position: absolute;
    bottom: -20%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(198, 167, 94, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: 1;
}

/* --- TESTIMONIALS SECTION --- */
.testimonials {
    background-color: var(--color-gold-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: var(--spacing-lg);
}

.testimonial-card {
    background-color: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.quote-icon {
    font-size: 4rem;
    font-family: serif;
    color: rgba(198, 167, 94, 0.2);
    position: absolute;
    top: 20px;
    left: 30px;
    line-height: 1;
}

.testimonial-body {
    position: relative;
    z-index: 2;
    margin-bottom: 30px;
    font-size: 1.1rem;
    color: var(--color-text-main);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
}

.author-img-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--color-gold);
}

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

.author-name {
    font-size: 1.1rem;
    color: var(--color-green-deep);
    font-weight: 600;
}

.author-role {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* --- CONTACT SECTION --- */
.contact {
    background-color: var(--color-purple-royal);
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.15rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-details {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 24px 40px;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-width: 300px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(198, 167, 94, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-label {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.contact-link {
    color: var(--color-white);
    font-size: 1.15rem;
    font-weight: 500;
}

.contact-link:hover {
    color: var(--color-gold);
}

.contact-form-wrapper {
    background-color: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-premium);
}

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

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--color-green-deep);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
    background-color: var(--color-bg-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    background-color: var(--color-white);
}

/* --- FOOTER --- */
.footer {
    background-color: var(--color-black);
    padding: 40px 0;
}

.copyright {
    color: var(--color-gold);
    margin-top: 16px;
    font-size: 0.95rem;
}

/* --- RESPONSIVE DESIGN --- */

/* Tablet Portrait & Large Mobile */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .hero-container,
    .about-grid,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 120px;
    }

    .hero-image {
        order: -1;
        margin-bottom: -20px;
    }

    .services-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .section-padding {
        padding: var(--spacing-xl) 0;
    }

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

    .nav-links {
        position: fixed;
        top: 76px;
        left: 0;
        width: 100%;
        background-color: var(--color-white);
        flex-direction: column;
        gap: 0;
        box-shadow: var(--shadow-md);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path var(--transition-base);
    }

    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 20px;
        text-align: center;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links a.btn-nav {
        margin: 20px;
        border-radius: 8px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .vision-lead {
        font-size: 1.4rem;
    }

    .service-card,
    .testimonial-card,
    .contact-form-wrapper {
        padding: 24px;
    }
}