/* OneStudio Agency - Design System */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Refined Professional Palette */
    --color-primary: #0A0A1A;
    --color-secondary: #E63E7A;
    --color-tertiary: #F5F5F7;
    --color-neutral: #6B6B7A;

    --color-background: #FFFFFF;
    --color-background-soft: #F8F8FC;
    --color-surface: #FFFFFF;
    --color-surface-container: #F4F4F9;
    --color-surface-variant: #EAEAF2;
    --color-secondary-light: rgba(230, 62, 122, 0.08);

    --color-on-surface: #0A0A1A;
    --color-on-surface-variant: #545463;
    --color-on-primary: #ffffff;

    --color-outline: #8C8C9E;
    --color-outline-variant: #DCDCE8;

    /* Typography */
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 6px;
    --spacing-sm: 12px;
    --spacing-md: 20px;
    --spacing-lg: 28px;
    --spacing-xl: 40px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;

    --grid-margin: 64px;
    --grid-gutter: 24px;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(10, 10, 26, 0.06);
    --shadow-md: 0 4px 20px rgba(10, 10, 26, 0.10);
    --shadow-lg: 0 12px 40px rgba(10, 10, 26, 0.14);
    --shadow-xl: 0 24px 60px rgba(10, 10, 26, 0.18);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-on-surface);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-base);
}

ul {
    list-style: none;
}

/* ===== Typography ===== */
.display-xl {
    font-family: var(--font-heading);
    font-size: clamp(36px, 4.5vw, 56px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.headline-lg {
    font-family: var(--font-heading);
    font-size: clamp(26px, 3vw, 40px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.headline-md {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.headline-sm {
    font-family: var(--font-heading);
    font-size: 17px;
    font-weight: 600;
    line-height: 1.4;
}

.body-lg {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-on-surface-variant);
}

.body-md {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-on-surface-variant);
}

.label-sm {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Section Eyebrow */
.section-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

/* ===== Layout ===== */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--grid-margin);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

.section-padding {
    padding: var(--spacing-3xl) 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: var(--spacing-2xl) 0;
    }
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--spacing-2xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(252, 248, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-outline-variant);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-on-surface);
    transition: color var(--transition-base);
}

.nav-link:hover {
    color: var(--color-secondary);
}

.nav-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-base);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    box-shadow: 0 2px 8px rgba(10, 10, 26, 0.2);
}

.btn-primary:hover {
    background: #1C1C30;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(10, 10, 26, 0.25);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-on-primary);
    box-shadow: 0 2px 8px rgba(230, 62, 122, 0.25);
}

.btn-secondary:hover {
    background: #C82D65;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(230, 62, 122, 0.35);
}

.btn-ghost {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-outline-variant);
}

.btn-ghost:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-variant);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 14px;
}

/* ===== Hero Section ===== */
.hero {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
}

.hero p {
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Services Grid ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--grid-gutter);
}

.service-card {
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border: 1.5px solid var(--color-outline-variant);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-secondary), #F082AC);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

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

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-icon {
    font-size: 40px;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    line-height: 1;
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
}

/* ===== Portfolio Grid ===== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--grid-gutter);
    margin-bottom: var(--spacing-xl);
}

.portfolio-card {
    display: block;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-slow);
    border: 1.5px solid var(--color-outline-variant);
}

.portfolio-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.portfolio-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-surface-variant);
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.07);
}

.portfolio-meta {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
}

.portfolio-meta h3 {
    margin-bottom: 8px;
    font-size: 15px;
}

.portfolio-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.tag {
    display: inline-block;
    padding: 5px 12px;
    background: var(--color-surface-container);
    color: var(--color-on-surface-variant);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--color-outline-variant);
}

/* ===== Testimonials ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--grid-gutter);
}

.testimonial-card {
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border: 1.5px solid var(--color-outline-variant);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-outline-variant);
    transform: translateY(-4px);
}

.testimonial-quote-mark {
    font-size: 40px;
    line-height: 0.8;
    color: var(--color-secondary);
    font-family: Georgia, 'Times New Roman', serif;
    font-weight: 400;
    opacity: 0.6;
    display: block;
}

.testimonial-stars {
    display: flex;
    gap: 3px;
}

.testimonial-stars svg {
    width: 16px;
    height: 16px;
    fill: #F59E0B;
}

.testimonial-card p {
    margin: 0;
    font-style: italic;
    line-height: 1.7;
    flex: 1;
}

.testimonial-author {
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-outline-variant);
}

.testimonial-author strong {
    display: block;
    color: var(--color-on-surface);
    margin-bottom: 4px;
    font-size: 15px;
    font-weight: 600;
}

.testimonial-author span {
    font-size: 13px;
}

/* ===== CTA Section ===== */
.cta {
    background: var(--color-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(230, 62, 122, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(230, 62, 122, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    max-width: 640px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-content .section-eyebrow {
    color: rgba(230, 62, 122, 0.9);
}

.cta h2 {
    color: #FFFFFF;
    margin-bottom: var(--spacing-sm);
}

.cta p {
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: var(--spacing-xl);
}

.cta .btn-primary {
    background: var(--color-secondary);
    box-shadow: 0 4px 20px rgba(230, 62, 122, 0.4);
}

.cta .btn-primary:hover {
    background: #C82D65;
    box-shadow: 0 8px 32px rgba(230, 62, 122, 0.5);
}

.cta .btn-ghost {
    color: rgba(255, 255, 255, 0.85);
    border-color: rgba(255, 255, 255, 0.25);
}

.cta .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: #FFFFFF;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
    background: #0A0A1A;
    color: var(--color-on-primary);
    padding: var(--spacing-2xl) 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 600px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

.footer-col-brand {
    padding-right: var(--spacing-xl);
}

.footer-brand-name {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.footer-brand-desc {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    line-height: 1.7;
    max-width: 260px;
}

.footer-col h4 {
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.4);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    font-weight: 400;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    padding: var(--spacing-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px;
    transition: color var(--transition-base);
}

.footer-bottom-links a:hover {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== Form Styles ===== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-on-surface);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 15px;
    background: var(--color-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-surface);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

/* ===== Utility Classes ===== */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }