@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-main: #F5F5F7;
    --bg-card: #FFFFFF;
    --border-color: rgba(0, 0, 0, 0.06);
    --text-primary: #1D1D1F;
    --text-secondary: #1D1D1F;
    --text-muted: #828286;
    
    /* Apple Minimalist Blue Accents */
    --accent-blue: #0071E3;
    --accent-blue-hover: #0077ED;
    --accent-glow: rgba(0, 113, 227, 0.08);
    --accent-gradient: linear-gradient(135deg, #0071E3 0%, #0056B3 100%);
    
    /* Warm Highlight for special content */
    --accent-copper: #bf4800;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-secondary);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif, "Inter";
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

p, span, li, td {
    color: var(--text-secondary);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
}

/* Header & Navigation (Frosted Glassmorphism) */
header {
    width: 100%;
    padding: 0.6rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.022em;
    color: var(--text-primary);
}

.nav-brand-logo {
    max-height: 65px;
    width: auto;
    object-fit: contain;
    display: block;
}

.logo svg {
    width: 26px;
    height: 26px;
    fill: var(--text-primary);
}

.logo-badge {
    font-size: 0.6rem;
    text-transform: uppercase;
    background: #E8E8ED;
    color: var(--text-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    margin-left: 0.4rem;
    letter-spacing: 0.5px;
}

nav {
    display: flex;
    align-items: center;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.25s ease;
    margin-left: 2rem;
    padding: 4px 0;
    border-bottom: 2px solid transparent;
}

nav a:hover {
    color: var(--text-primary);
}

nav a.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
}

nav a.cta-nav {
    background: var(--text-primary);
    color: #FFFFFF;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    margin-left: 2.2rem;
    transition: all 0.25s ease;
}

nav a.cta-nav:hover {
    background: #333336;
    color: #FFFFFF;
}

nav a.cta-nav.active {
    background: var(--accent-blue);
    color: #FFFFFF;
    border-bottom: none;
}

/* Main Layout */
main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 4.5rem;
    padding: 4rem 1rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.hero h1 span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 2.5rem auto;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
}

/* General Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 24px;
    font-weight: 500;
    text-decoration: none;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--accent-blue);
    color: #FFFFFF;
}

.btn-primary:hover {
    background: var(--accent-blue-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: #E8E8ED;
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #DFDFE5;
    transform: translateY(-1px);
}

/* Bento Grid System */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem;
    margin-bottom: 5rem;
}

.span-1 { grid-column: span 1; }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-10 { grid-column: span 10; }
.span-11 { grid-column: span 11; }
.span-12 { grid-column: span 12; }

@media (max-width: 900px) {
    .bento-grid > * {
        grid-column: span 12 !important;
    }
    .bento-grid {
        gap: 1.5rem;
    }
}

/* Bento Cards styling */
.bento-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 2.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.03);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease, border-color 0.35s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.bento-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 113, 227, 0.15);
}

/* Showcase Cards for Catalog compatibility */
.showcase-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 2.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.03);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease, border-color 0.35s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.showcase-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 113, 227, 0.15);
}

.element-symbol {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 0.75rem;
    line-height: 1.1;
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
}

.element-symbol span {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.showcase-card h3, .bento-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    color: var(--text-primary);
}

.showcase-card p, .bento-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    font-weight: 400;
    flex: 1;
}

.specs-list {
    list-style: none;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
    margin-bottom: 1.5rem;
}

.specs-list li {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 0.6rem;
}

.specs-list li span:first-child {
    color: var(--text-muted);
    font-weight: 500;
}

.specs-list li span:last-child {
    color: var(--text-primary);
    font-weight: 600;
}

/* Page Section Headers */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.022em;
    margin-bottom: 2.5rem;
    color: var(--text-primary);
}

/* Compliance Section Redesign */
.compliance-grid-light {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.03);
    margin-bottom: 5rem;
}

@media (max-width: 900px) {
    .compliance-grid-light {
        grid-template-columns: 1fr;
        padding: 2.5rem;
    }
}

.compliance-info-light h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    letter-spacing: -0.025em;
}

.compliance-info-light p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.compliance-badges {
    display: flex;
    gap: 1rem;
}

.compliance-badge {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1.2rem;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.compliance-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step-card {
    display: flex;
    gap: 1.25rem;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 113, 227, 0.08);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    flex-shrink: 0;
    border: 1px solid rgba(0, 113, 227, 0.15);
}

.step-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

.step-content p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Form Styles Redesign (Bento Card Form) */
.form-bento {
    max-width: 750px;
    margin: 0 auto 5rem auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.03);
}

@media (max-width: 600px) {
    .form-bento {
        padding: 2rem 1.5rem;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input {
    background: var(--bg-main);
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 0.8rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.25s ease;
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: #FFFFFF;
    box-shadow: 0 0 0 4px var(--accent-glow);
}

select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2386868b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.1em;
    padding-right: 2.5rem;
    cursor: pointer;
}

/* File Upload Style */
.file-upload-wrapper {
    position: relative;
    border: 1px dashed var(--text-muted);
    padding: 2.2rem;
    border-radius: 12px;
    text-align: center;
    background: var(--bg-main);
    cursor: pointer;
    transition: all 0.25s ease;
}

.file-upload-wrapper:hover {
    border-color: var(--accent-blue);
    background: rgba(0, 113, 227, 0.02);
}

.file-upload-wrapper input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload-icon {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.file-upload-text {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

.file-upload-subtext {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.selected-filename {
    margin-top: 0.6rem;
    font-size: 0.85rem;
    color: var(--accent-blue);
    font-weight: 600;
    display: none;
}

/* Messages & Alerts */
.msg-alert {
    border-radius: 8px;
    padding: 1rem 1.25rem;
    font-size: 0.92rem;
    display: none;
    line-height: 1.5;
}

.msg-alert.success {
    background: rgba(52, 199, 89, 0.08);
    color: #248a3d;
    border: 1px solid rgba(52, 199, 89, 0.15);
    display: block;
}

.msg-alert.error {
    background: rgba(255, 59, 48, 0.08);
    color: #ff3b30;
    border: 1px solid rgba(255, 59, 48, 0.15);
    display: block;
}

/* Footer (Apple Style Minimalist) */
footer {
    width: 100%;
    padding: 4rem 3rem;
    border-top: 1px solid var(--border-color);
    background: #FFFFFF;
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
        text-align: center;
    }
    .footer-info {
        align-items: center !important;
        text-align: center !important;
    }
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    text-align: left;
}

.footer-logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    letter-spacing: -0.015em;
}

.social-icons {
    display: flex;
    gap: 1.2rem;
    margin-top: 0.6rem;
}

.social-icons a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: color 0.25s ease;
}

.social-icons a:hover {
    color: var(--accent-blue);
}

.footer-copyright {
    color: var(--text-muted);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.5rem;
    transition: color 0.25s ease;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
    margin-right: 0.4rem;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}