/* ========================================================
   PYI SOE LTD — Design System
   Modern Minimal Corporate Style
   ======================================================== */

/* --- Design Tokens --- */
:root {
    --color-bg:          #ffffff;
    --color-bg-alt:      #f9fafb;
    --color-bg-dark:     #0f172a;
    --color-text:        #111827;
    --color-text-muted:  #6b7280;
    --color-text-light:  #9ca3af;
    --color-accent:      #2563eb;
    --color-accent-hover:#1d4ed8;
    --color-accent-light:#eff6ff;
    --color-border:      #e5e7eb;
    --color-border-dark: #1e293b;
    --color-white:       #ffffff;
    --color-success:     #16a34a;
    --color-error:       #dc2626;

    --font:              'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius-sm:         6px;
    --radius:            12px;
    --radius-lg:         20px;
    --radius-full:       9999px;

    --shadow-sm:         0 1px 2px rgba(0,0,0,0.05);
    --shadow:            0 1px 3px rgba(0,0,0,0.08), 0 8px 24px rgba(0,0,0,0.06);
    --shadow-lg:         0 4px 6px rgba(0,0,0,0.05), 0 20px 48px rgba(0,0,0,0.08);
    --shadow-accent:     0 8px 32px rgba(37,99,235,0.18);

    --transition:        all 0.2s ease;
    --max-width:         1200px;
    --section-py:        6rem;
    --nav-height:        72px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }

/* --- Loading Splash --- */
#splash {
    position: fixed; inset: 0;
    background: var(--color-bg);
    display: flex; align-items: center; justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}
.splash-inner { text-align: center; }
.splash-logo {
    font-size: 1.5rem; font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}
.splash-spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Blazor Error UI --- */
#blazor-error-ui {
    background: #fee2e2; color: #991b1b;
    padding: 0.75rem 1.5rem;
    position: fixed; bottom: 0; left: 0; right: 0;
    display: none; align-items: center; gap: 1rem;
    font-size: 0.875rem; z-index: 1000;
}
#blazor-error-ui .reload { color: var(--color-accent); font-weight: 600; }
#blazor-error-ui .dismiss { margin-left: auto; cursor: pointer; font-size: 1.2rem; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700; line-height: 1.2; color: var(--color-text);
}
h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.875rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }
p { color: var(--color-text-muted); line-height: 1.75; }

.section-label {
    display: inline-block;
    font-size: 0.75rem; font-weight: 600;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 0.375rem 1rem; border-radius: var(--radius-full);
    margin-bottom: 1rem;
}
.section-title { margin-bottom: 1rem; }
.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 560px;
    line-height: 1.75;
}
.section-header { margin-bottom: 3.5rem; }
.section-header.centered { text-align: center; }
.section-header.centered .section-subtitle { margin: 0 auto; }

/* --- Layout Utilities --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}
section { padding: var(--section-py) 0; }
.divider {
    width: 48px; height: 4px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    margin: 1rem 0 1.5rem;
}
.divider.centered { margin: 1rem auto 1.5rem; }

/* --- Buttons --- */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-full);
    font-size: 0.9375rem; font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 12px 40px rgba(37,99,235,0.25);
}
.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}
.btn-outline:hover {
    background: var(--color-accent-light);
    transform: translateY(-1px);
}
.btn-ghost {
    color: var(--color-text-muted);
    border: 2px solid var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn-lg { padding: 1rem 2.25rem; font-size: 1rem; }

/* --- Cards --- */
.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}

/* ========================================================
   NAVIGATION
   ======================================================== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    height: var(--nav-height);
    z-index: 100;
    transition: all 0.3s ease;
}
.navbar-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex; align-items: center; justify-content: space-between;
    gap: 2rem;
}
.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}
.navbar-brand {
    display: flex; align-items: center; gap: 0.625rem;
    font-size: 1.125rem; font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--color-text);
    flex-shrink: 0;
}
.navbar-brand .brand-accent { color: var(--color-accent); }
.navbar-brand .brand-dot {
    width: 8px; height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    display: inline-block;
}

.nav-links {
    display: flex; align-items: center; gap: 0.25rem;
    flex: 1; justify-content: center;
}
.nav-link {
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem; font-weight: 500;
    color: var(--color-text-muted);
    transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
    color: var(--color-accent);
    background: var(--color-accent-light);
}
.nav-actions { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column; gap: 5px;
    padding: 0.5rem;
    cursor: pointer;
}
.hamburger span {
    display: block; width: 24px; height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
    position: fixed; top: var(--nav-height); left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem 1.5rem;
    display: flex; flex-direction: column; gap: 0.25rem;
    z-index: 99;
    box-shadow: var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.25s ease;
    pointer-events: none;
}
.mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: all; }
.mobile-menu .nav-link { display: block; padding: 0.75rem 1rem; }
.mobile-menu .btn { margin-top: 0.5rem; justify-content: center; }

/* ========================================================
   HERO SECTION
   ======================================================== */
.hero {
    padding-top: calc(var(--nav-height) + 5rem);
    padding-bottom: 5rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -20%;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(37,99,235,0.04) 0%, transparent 70%);
    pointer-events: none;
}
.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    position: relative; z-index: 1;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: var(--color-accent-light);
    color: var(--color-accent);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem; font-weight: 600;
    letter-spacing: 0.03em;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(37,99,235,0.15);
}
.hero-badge .dot {
    width: 6px; height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.8); }
}
.hero-title {
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}
.hero-title .highlight {
    color: var(--color-accent);
    position: relative;
}
.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 2.5rem;
    max-width: 520px;
}
.hero-actions {
    display: flex; flex-wrap: wrap; gap: 1rem;
    margin-bottom: 3rem;
}
.hero-stats {
    display: flex; gap: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}
.hero-stat-value {
    font-size: 1.75rem; font-weight: 800;
    color: var(--color-text);
    line-height: 1;
    margin-bottom: 0.25rem;
}
.hero-stat-label { font-size: 0.875rem; color: var(--color-text-muted); }

/* Hero visual */
.hero-visual {
    display: flex; align-items: center; justify-content: center;
    position: relative;
}
.hero-card-stack { position: relative; width: 100%; max-width: 420px; }
.hero-main-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    position: relative; z-index: 2;
}
.hero-card-accent {
    position: absolute;
    top: -16px; right: -16px;
    width: 100%; height: 100%;
    background: var(--color-accent);
    border-radius: var(--radius-lg);
    opacity: 0.08;
    z-index: 1;
}
.hero-card-icon {
    width: 56px; height: 56px;
    background: var(--color-accent-light);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}
.hero-card-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.hero-card-text { font-size: 0.875rem; color: var(--color-text-muted); }

.hero-floating-badge {
    position: absolute;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.875rem 1.125rem;
    box-shadow: var(--shadow);
    display: flex; align-items: center; gap: 0.75rem;
    font-size: 0.8125rem; font-weight: 600;
    z-index: 3;
}
.hero-floating-badge.top-left { top: -1rem; left: -1.5rem; }
.hero-floating-badge.bottom-right { bottom: -1rem; right: -1.5rem; }
.badge-icon { font-size: 1.25rem; }

/* ========================================================
   SERVICES SECTION
   ======================================================== */
.services { background: var(--color-bg-alt); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--color-accent);
    opacity: 0;
    transition: var(--transition);
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-icon {
    width: 52px; height: 52px;
    background: var(--color-accent-light);
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.375rem;
    margin-bottom: 1.25rem;
    transition: var(--transition);
}
.service-card:hover .service-icon {
    background: var(--color-accent);
}
.service-title { font-size: 1.0625rem; font-weight: 700; margin-bottom: 0.75rem; }
.service-description { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.65; }

/* ========================================================
   ABOUT SECTION
   ======================================================== */
.about-inner {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 5rem; align-items: center;
}
.about-visual { position: relative; }
.about-image-frame {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    display: flex; align-items: center; justify-content: center;
    font-size: 5rem;
    position: relative; overflow: hidden;
}
.about-image-frame::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(37,99,235,0.05), transparent);
}
.about-badge {
    position: absolute;
    bottom: -1.5rem; left: 2rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
    display: flex; align-items: center; gap: 0.75rem;
    z-index: 2;
}
.about-badge-icon { font-size: 1.75rem; }
.about-badge-text strong { display: block; font-size: 1rem; font-weight: 700; }
.about-badge-text span { font-size: 0.8125rem; color: var(--color-text-muted); }
.about-values {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 1rem; margin-top: 2rem;
}
.about-value {
    display: flex; align-items: flex-start; gap: 0.75rem;
    padding: 1rem;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}
.about-value-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 2px; }
.about-value-title { font-size: 0.875rem; font-weight: 600; margin-bottom: 0.25rem; }
.about-value-text { font-size: 0.8125rem; color: var(--color-text-muted); }

/* ========================================================
   PORTFOLIO SECTION
   ======================================================== */
.portfolio { background: var(--color-bg-alt); }
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.portfolio-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.portfolio-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.portfolio-thumbnail {
    aspect-ratio: 16/9;
    background: var(--color-bg-alt);
    display: flex; align-items: center; justify-content: center;
    font-size: 2.5rem;
    border-bottom: 1px solid var(--color-border);
    position: relative; overflow: hidden;
}
.portfolio-thumbnail::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(37,99,235,0.06), transparent);
}
.portfolio-body { padding: 1.5rem; }
.portfolio-tags {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin-bottom: 0.875rem;
}
.tag {
    font-size: 0.7rem; font-weight: 600;
    letter-spacing: 0.05em; text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
}
.portfolio-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.portfolio-description { font-size: 0.875rem; color: var(--color-text-muted); margin-bottom: 1.25rem; }
.portfolio-link {
    font-size: 0.875rem; font-weight: 600;
    color: var(--color-accent);
    display: inline-flex; align-items: center; gap: 0.375rem;
    transition: var(--transition);
}
.portfolio-link:hover { gap: 0.625rem; }

/* ========================================================
   CONTACT SECTION
   ======================================================== */
.contact-inner {
    display: grid; grid-template-columns: 1fr 1.5fr;
    gap: 5rem; align-items: start;
}
.contact-info { padding-top: 0.5rem; }
.contact-detail {
    display: flex; align-items: flex-start; gap: 1rem;
    padding: 1.25rem;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
}
.contact-detail-icon {
    width: 44px; height: 44px;
    background: var(--color-accent-light);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.contact-detail-title { font-size: 0.8125rem; color: var(--color-text-muted); margin-bottom: 0.25rem; }
.contact-detail-value { font-size: 0.9375rem; font-weight: 600; }

/* Form */
.contact-form-wrapper {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow);
}
.form-group { margin-bottom: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-label {
    display: block;
    font-size: 0.875rem; font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}
.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.form-control.invalid { border-color: var(--color-error); }
.form-control::placeholder { color: var(--color-text-light); }
textarea.form-control { resize: vertical; min-height: 140px; }
.form-error {
    font-size: 0.8125rem; color: var(--color-error);
    margin-top: 0.375rem;
    display: block;
}
.form-success {
    padding: 1rem 1.25rem;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius-sm);
    color: var(--color-success);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* ========================================================
   FOOTER
   ======================================================== */
.footer {
    background: var(--color-bg-dark);
    color: #94a3b8;
    padding: 4rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-brand-name {
    font-size: 1.125rem; font-weight: 800;
    color: var(--color-white);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}
.footer-brand-name .accent { color: var(--color-accent); }
.footer-tagline { font-size: 0.875rem; line-height: 1.7; color: #64748b; margin-bottom: 1.5rem; }
.footer-social {
    display: flex; gap: 0.75rem;
}
.social-link {
    width: 38px; height: 38px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
    color: #94a3b8;
    transition: var(--transition);
}
.social-link:hover { background: var(--color-accent); color: white; border-color: var(--color-accent); }
.footer-heading {
    font-size: 0.875rem; font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1.25rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}
.footer-links { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-link {
    font-size: 0.875rem; color: #64748b;
    transition: var(--transition);
}
.footer-link:hover { color: var(--color-white); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 2rem;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 1rem;
}
.footer-copy { font-size: 0.8125rem; color: #475569; }
.footer-copy a { color: var(--color-accent); }

/* ========================================================
   404 PAGE
   ======================================================== */
.not-found {
    min-height: 70vh;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    text-align: center; padding: 3rem 1.5rem;
}
.not-found h1 {
    font-size: 8rem; font-weight: 900;
    color: var(--color-border);
    line-height: 1; margin-bottom: 1rem;
}
.not-found p {
    font-size: 1.125rem; margin-bottom: 2rem;
    color: var(--color-text-muted);
}

/* ========================================================
   RESPONSIVE
   ======================================================== */
@media (max-width: 1024px) {
    .services-grid, .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --section-py: 4rem; }

    .nav-links, .nav-actions { display: none; }
    .hamburger { display: flex; }

    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-visual { display: none; }
    .hero-description { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; flex-wrap: wrap; gap: 1.5rem; }

    .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
    .about-values { grid-template-columns: 1fr; }

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

    .form-row { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .btn-lg { padding: 0.875rem 1.75rem; font-size: 0.9375rem; }
    .hero-stats { gap: 1.25rem; }
}