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

:root {
    --bg-color: #F5F5F7;
    --bg-secondary: #FBFBFD;
    --text-color: #1d1d1f;
    --text-secondary: #6e6e73;
    --burst-color: #1d1d1f;
    --burst-glow: rgba(29, 29, 31, 0.8);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;
    --border-radius: 18px;
    --border-radius-sm: 12px;
    --transition: all 0.4s cubic-bezier(0.28, 0.11, 0.32, 1);
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.08);
}

@supports (color: color(display-p3 1 1 1)) {
    :root {
        --text-color: color(display-p3 0.114 0.114 0.122);
        --text-secondary: color(display-p3 0.431 0.431 0.451);
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #000000;
        --bg-secondary: #1d1d1f;
        --text-color: #f5f5f7;
        --text-secondary: #a1a1a6;
        --burst-color: #f5f5f7;
        --burst-glow: rgba(245, 245, 247, 0.9);
        --shadow-sm: 0 2px 8px rgba(255, 255, 255, 0.05);
        --shadow-md: 0 4px 24px rgba(255, 255, 255, 0.08);
        --shadow-lg: 0 12px 48px rgba(255, 255, 255, 0.12);
    }
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    html {
        color-scheme: dark;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.47059;
    font-size: 17px;
    letter-spacing: -0.022em;
    overflow-x: hidden;
    /* iOS safe area support */
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.0834933333;
    letter-spacing: -0.003em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.015em;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
}

/* ===== Container ===== */
.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 max(var(--spacing-md), env(safe-area-inset-left));
}

@media (min-width: 1440px) {
    .container {
        max-width: 1200px;
    }
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(245, 245, 247, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    z-index: 1000;
    box-shadow: inset 0 -1px 0 0 rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

@media (prefers-color-scheme: dark) {
    .header {
        background-color: rgba(29, 29, 31, 0.72);
        box-shadow: inset 0 -1px 0 0 rgba(255, 255, 255, 0.1);
    }
}

@supports not (backdrop-filter: blur(20px)) {
    .header {
        background-color: rgba(245, 245, 247, 0.95);
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem max(var(--spacing-md), env(safe-area-inset-left));
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 44px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
}

#logo {
    transition: var(--transition);
}

.brand-name {
    font-size: 1.3125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-color);
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    padding: 0.5rem 0.75rem;
    border-radius: 980px;
    transition: var(--transition);
    font-size: 0.9375rem;
}

.nav-menu a:hover {
    background-color: rgba(0, 0, 0, 0.04);
    transform: scale(1.02);
}

@media (prefers-color-scheme: dark) {
    .nav-menu a:hover {
        background-color: rgba(255, 255, 255, 0.08);
    }
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xxl) max(var(--spacing-md), env(safe-area-inset-left));
    position: relative;
    background: linear-gradient(180deg, var(--bg-color) 0%, var(--bg-secondary) 100%);
}

.hero-content {
    max-width: 880px;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-logo {
    margin: 0 auto 3rem;
    display: inline-block;
    animation: fadeInScale 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-logo svg {
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.08));
    transition: var(--transition-smooth);
}

.hero-logo .hero-inner-circle,
.hero-logo .hero-outer-circle {
    transform-origin: 50px 50px;
    transform-box: fill-box;
}

.hero-logo:hover svg {
    filter: drop-shadow(0 12px 32px var(--burst-glow)) drop-shadow(0 0 20px var(--burst-glow));
}

@media (prefers-color-scheme: dark) {
    .hero-logo svg {
        filter: drop-shadow(0 8px 24px rgba(255, 255, 255, 0.15));
    }
    .hero-logo:hover svg {
        filter: drop-shadow(0 12px 32px rgba(255, 255, 255, 0.25));
    }
}

.hero-title {
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
    background: linear-gradient(90deg, var(--text-color), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.5;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.cta-button {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    background-color: #0071e3;
    color: #ffffff;
    border-radius: 980px;
    font-weight: 400;
    font-size: 1.0625rem;
    transition: var(--transition);
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
    box-shadow: 0 4px 16px rgba(0, 113, 227, 0.3);
    cursor: pointer;
}

.cta-button:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.4);
    background-color: #0077ed;
}

.cta-button:active {
    transform: scale(0.98);
}

@media (prefers-color-scheme: dark) {
    .cta-button {
        background-color: #0a84ff;
    }
    .cta-button:hover {
        background-color: #409cff;
    }
}

/* ===== Services Section ===== */
.services {
    padding: var(--spacing-xxl) max(var(--spacing-md), env(safe-area-inset-left));
    background-color: var(--bg-secondary);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-weight: 700;
}

.service-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 3rem;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
    .service-card {
        background: rgba(29, 29, 31, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .service-card:hover {
        border-color: rgba(255, 255, 255, 0.15);
    }
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(0, 113, 227, 0.05));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    transform: scale(1.08) rotate(2deg);
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.15), rgba(0, 113, 227, 0.08));
}

@media (prefers-color-scheme: dark) {
    .service-icon {
        background: linear-gradient(135deg, rgba(10, 132, 255, 0.2), rgba(10, 132, 255, 0.1));
    }
    .service-card:hover .service-icon {
        background: linear-gradient(135deg, rgba(10, 132, 255, 0.3), rgba(10, 132, 255, 0.15));
    }
}

.service-icon svg {
    stroke: var(--text-color);
}

.service-title {
    margin-bottom: var(--spacing-md);
}

.service-description {
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.service-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-category h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.service-list, .service-category ul {
    list-style: none;
    padding-left: 0;
}

.service-list li, .service-category ul li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.service-list li::before, .service-category ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--text-color);
    font-weight: bold;
}

/* ===== About Section ===== */
.about {
    padding: var(--spacing-xxl) max(var(--spacing-md), env(safe-area-inset-left));
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-color) 100%);
}

.about-text {
    max-width: 780px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.25rem;
    line-height: 1.5;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: -0.005em;
}

/* ===== Gallery Section ===== */
.gallery-section {
    padding: var(--spacing-xxl) max(var(--spacing-md), env(safe-area-inset-left));
    background-color: var(--bg-secondary);
}

.section-description {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 2rem;
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.5;
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--spacing-xxl) max(var(--spacing-md), env(safe-area-inset-left));
    background-color: var(--bg-color);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-smooth);
    font-size: 1.0625rem;
}

.contact-item:hover {
    transform: translateX(8px) scale(1.01);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
    .contact-item {
        background: rgba(29, 29, 31, 0.6);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .contact-item:hover {
        background: rgba(29, 29, 31, 0.8);
        border-color: rgba(255, 255, 255, 0.15);
    }
}

.contact-item svg {
    flex-shrink: 0;
}

.contact-item a:hover {
    opacity: 0.7;
}

/* ===== Footer ===== */
.footer {
    padding: 2.5rem max(var(--spacing-md), env(safe-area-inset-left));
    padding-bottom: calc(2.5rem + env(safe-area-inset-bottom));
    text-align: center;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 0.875rem;
}

@media (prefers-color-scheme: dark) {
    .footer {
        background-color: #000000;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

@keyframes ripple {
    0% {
        transform: scale(1);
        opacity: 0.6;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

@keyframes energyPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.15);
        opacity: 0.9;
    }
}

@keyframes energyExpand {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
}

/* Logo animations */
.inner-circle {
    transform-origin: center;
    transition: transform 0.4s cubic-bezier(0.28, 0.11, 0.32, 1);
    will-change: transform;
}

.outer-circle {
    transform-origin: center;
    transition: transform 0.4s cubic-bezier(0.28, 0.11, 0.32, 1);
    will-change: transform;
}

@media (prefers-color-scheme: dark) {
    .inner-circle {
        fill: #f5f5f7;
    }
    .outer-circle {
        stroke: #f5f5f7;
    }
}

/* Logo glow effect */
#logo {
    filter: drop-shadow(0 0 0 transparent);
    transition: filter 0.4s cubic-bezier(0.28, 0.11, 0.32, 1);
    position: relative;
}

#logo:hover {
    filter: drop-shadow(0 0 12px var(--burst-glow)) drop-shadow(0 0 24px var(--burst-glow));
}

.logo-container:hover #logo .inner-circle {
    animation: energyPulse 2s ease-in-out infinite;
}

.logo-container:hover #logo .outer-circle {
    animation: energyExpand 2s ease-in-out infinite;
}

@media (prefers-color-scheme: dark) {
    #logo:hover {
        filter: drop-shadow(0 0 16px var(--burst-glow)) drop-shadow(0 0 32px var(--burst-glow));
    }
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
        --spacing-xxl: 5rem;
    }
    
    body {
        font-size: 16px;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: rgba(245, 245, 247, 0.95);
        backdrop-filter: saturate(180%) blur(20px);
        -webkit-backdrop-filter: saturate(180%) blur(20px);
        width: 100%;
        padding: var(--spacing-md);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
        transition: var(--transition-smooth);
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }
    
    @media (prefers-color-scheme: dark) {
        .nav-menu {
            background-color: rgba(29, 29, 31, 0.95);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .service-categories {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: 2rem;
    }

    .contact-item {
        flex-direction: row;
        justify-content: flex-start;
        text-align: left;
        padding: 1.25rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .brand-name {
        font-size: 1rem;
    }

    #logo {
        width: 40px;
        height: 40px;
    }
}

/* ===== Apple-Specific Features ===== */
/* Smooth scrolling for Safari */
@supports (-webkit-overflow-scrolling: touch) {
    html {
        -webkit-overflow-scrolling: touch;
    }
}

/* Optimized for Retina displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: subpixel-antialiased;
    }
}

/* Safari-specific optimizations */
@supports (font: -apple-system-body) {
    body {
        font: -apple-system-body;
    }
}

/* Dynamic Island support for iPhone 14 Pro+ */
@media (max-width: 430px) and (min-height: 850px) {
    .header {
        padding-top: env(safe-area-inset-top);
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 2px solid #0071e3;
    outline-offset: 4px;
    border-radius: 4px;
}

@media (prefers-color-scheme: dark) {
    a:focus,
    button:focus {
        outline-color: #0a84ff;
    }
}

/* Hover states disabled for touch devices */
@media (hover: none) {
    .service-card:hover,
    .contact-item:hover,
    .nav-menu a:hover {
        transform: none;
    }
}