/* DGTL CSS Design System & Layout */

:root {
    --bg-color: #F5F2EB;
    --text-primary: #0F1219;
    --text-secondary: #736E65;
    --border-color: rgba(15, 18, 25, 0.08);
    --border-color-dark: rgba(15, 18, 25, 0.15);
    --hover-bg: #ECE9E0;
    --white: #FFFFFF;
    
    /* Typography */
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: 'Instrument Serif', Georgia, serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-color);
}

body {
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
}

.bg-grid-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.bg-grid-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(to right, rgba(15, 18, 25, 0.018) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(15, 18, 25, 0.018) 1px, transparent 1px);
    background-size: 80px 80px;
}

.bg-grid-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(300px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(15, 18, 25, 0.05), transparent 85%);
}

/* Common Layout Utilities */
.section-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
}

.section-overline {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.column-overline {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Header & Navigation */
.header {
    width: 100%;
    border-bottom: 1px solid transparent;
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(245, 242, 235, 0);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.header-container {
    max-width: 1280px;
    height: 80px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.scrolled {
    background-color: rgba(245, 242, 235, 0.85);
    border-bottom-color: var(--border-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(15, 18, 25, 0.02);
}

.header.scrolled .header-container {
    height: 64px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.82;
}

.logo-svg {
    width: 30px;
    height: 30px;
    color: var(--text-primary);
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo:hover .logo-svg {
    transform: rotate(6deg) scale(1.05);
}

.logo-text {
    font-family: var(--font-primary);
    line-height: 1;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.btn-subscribe {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--text-primary);
    color: var(--bg-color);
    padding: 12px 20px;
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid var(--text-primary);
}

.btn-subscribe .arrow-up-right {
    display: inline-block;
    transition: transform 0.3s ease;
}

.btn-subscribe:hover {
    background-color: transparent;
    color: var(--text-primary);
}

.btn-subscribe:hover .arrow-up-right {
    transform: translate(2px, -2px);
}

/* Mobile Navigation */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 102;
}

.mobile-menu-btn .bar {
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-color);
    z-index: 101;
    display: flex;
    justify-content: center;
    align-items: center;
    transform: translateY(-100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav.open {
    transform: translateY(0);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mobile-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.btn-subscribe-mobile {
    margin-top: 16px;
    background-color: var(--text-primary);
    color: var(--bg-color);
    padding: 14px 28px;
    border-radius: 30px;
    font-size: 1rem;
}

/* Hero Section */
.hero-section {
    width: 100%;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-content .overline {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 4.25rem;
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.015em;
    color: var(--text-primary);
    margin-bottom: 32px;
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 460px;
    margin-bottom: 40px;
}

.hero-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    padding-bottom: 4px;
}

.hero-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--text-primary);
    transform: scaleX(1);
    transform-origin: left;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-link:hover::after {
    transform: scaleX(0);
    transform-origin: right;
}

.hero-link .arrow {
    transition: transform 0.3s ease;
}

.hero-link:hover .arrow {
    transform: translateX(4px);
}

.hero-visualization {
    width: 100%;
    height: 580px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

#network-canvas {
    width: 100%;
    height: calc(100vh + 400px);
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: -1;
}

/* Research Areas Section */
.research-section {
    padding: 120px 0;
    position: relative;
    z-index: 2;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.research-card {
    background-color: rgba(255, 255, 255, 0.35);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    min-height: 420px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.research-card:hover {
    background-color: rgba(255, 255, 255, 0.75);
    border-color: var(--border-color-dark);
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(15, 18, 25, 0.03);
}

.research-card-fig {
    font-family: monospace;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    opacity: 0.6;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.research-icon {
    width: 170px;
    height: 170px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 16px auto;
    align-self: center;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.research-card:hover .research-icon {
    transform: translateY(-4px) scale(1.05);
}

.research-icon svg {
    width: 100%;
    height: 100%;
}

.research-card-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.research-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.research-card-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

/* Notes Section */
.notes-section {
    padding: 120px 0;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.note-card {
    background-color: rgba(255, 255, 255, 0.35);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
}

.note-card-link {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 36px 32px;
    min-height: 380px;
    width: 100%;
    text-decoration: none;
    color: inherit;
}

.note-card:hover {
    background-color: rgba(255, 255, 255, 0.75);
    border-color: var(--border-color-dark);
    transform: translateY(-6px);
    box-shadow: 0 16px 36px rgba(15, 18, 25, 0.03);
}

.note-card-meta {
    margin-bottom: 16px;
}

.note-card-date {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.note-card-title {
    font-family: var(--font-serif);
    font-size: 1.9rem;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 16px;
    transition: color 0.3s ease;
}

.note-card-excerpt {
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 32px;
    flex-grow: 1;
}

.note-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.note-card-read-time {
    font-family: monospace;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.arrow-diagonal {
    font-size: 0.95rem;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.note-card:hover .arrow-diagonal {
    transform: translate(3px, -3px);
}

.notes-section-action {
    margin-top: 56px;
    display: flex;
    justify-content: center;
}

.action-link-dgtl {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--text-primary);
    padding-bottom: 4px;
    transition: border-color 0.3s ease;
}

.action-link-dgtl:hover {
    border-color: transparent;
}

.action-link-dgtl .arrow {
    transition: transform 0.3s ease;
}

.action-link-dgtl:hover .arrow {
    transform: translateX(4px);
}

/* About Section */
.about-section {
    padding: 160px 0;
}

.about-manifesto {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.015em;
    color: var(--text-primary);
    max-width: 900px;
    margin: 0;
}

/* Footer styling */
.footer {
    width: 100%;
    padding: 60px 0 80px;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-top: 80px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--text-primary);
}

.footer-logo .logo-svg {
    width: 36px;
    height: 36px;
}

.footer-copyright {
    font-size: 0.85rem;
    color: var(--text-secondary);
}



.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-items: flex-end;
}

.email-link {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    position: relative;
}

.email-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--text-primary);
    transform: scaleX(1);
    transform-origin: left;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.email-link:hover::after {
    transform: scaleX(0);
    transform-origin: right;
}

.social-icons {
    display: flex;
    gap: 20px;
}

.social-icons a {
    color: var(--text-primary);
    font-size: 1.2rem;
    text-decoration: none;
    transition: transform 0.2s ease, color 0.2s ease;
}

.social-icons a:hover {
    color: var(--text-secondary);
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .hero-section {
        min-height: auto;
        padding: 60px 0;
    }
    
    .hero-visualization {
        height: 380px;
    }

    #network-canvas {
        height: calc(100% + 220px);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .research-grid,
    .notes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .section-container, .header-container, .hero-container, .footer-container {
        padding: 0 24px;
    }
    
    .header-container {
        height: 70px;
    }
    
    .nav, .btn-subscribe {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    /* Burger transformation when active */
    .mobile-menu-btn.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-menu-btn.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-title {
        font-size: 2.35rem;
    }
    
    .research-grid,
    .notes-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .research-card,
    .note-card-link {
        padding: 36px 24px;
        min-height: 340px;
    }
    
    .about-manifesto {
        font-size: 1.8rem;
    }
    
    .footer-top {
        flex-direction: column;
        align-items: center;
        gap: 40px;
        text-align: center;
    }
    

    
    .footer-contact {
        align-items: center;
    }
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.reveal-visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.18s; }
.reveal-delay-3 { transition-delay: 0.26s; }
.reveal-delay-4 { transition-delay: 0.34s; }
.reveal-delay-5 { transition-delay: 0.42s; }
.reveal-delay-6 { transition-delay: 0.5s; }

/* Interactive SVG Icon Micro-Animations */
.research-icon svg ellipse,
.research-icon svg path,
.research-icon svg circle,
.research-icon svg line,
.research-icon svg rect {
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), 
                stroke-width 0.4s ease, 
                opacity 0.4s ease, 
                stroke-dasharray 0.4s ease,
                fill 0.4s ease;
}

/* FIG 0.1: Tourism - Spherical rotation & trajectory pattern change */
.research-card[data-node="tourism"] .research-icon svg ellipse {
    transform-origin: 50px 50px;
}
.research-card[data-node="tourism"]:hover .research-icon svg ellipse {
    transform: rotate(45deg);
}
.research-card[data-node="tourism"]:hover .research-icon svg path:nth-of-type(1) {
    stroke-dasharray: 6 3;
}

/* FIG 0.2: Energy - Rotating dashed core & energy flow lines */
.research-card[data-node="energy"] .research-icon svg circle:nth-of-type(5) {
    transform-origin: 50px 40px;
}
.research-card[data-node="energy"]:hover .research-icon svg circle:nth-of-type(5) {
    animation: rotate-core 6s linear infinite;
}
.research-card[data-node="energy"]:hover .research-icon svg line {
    stroke-dasharray: 4 4;
    animation: energy-flow 1.5s linear infinite;
}
@keyframes rotate-core {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@keyframes energy-flow {
    from { stroke-dashoffset: 0; }
    to { stroke-dashoffset: -8; }
}

/* FIG 0.3: Housing - 3D isometric blueprints expansion */
.research-card[data-node="housing"]:hover .research-icon svg path:nth-of-type(4),
.research-card[data-node="housing"]:hover .research-icon svg path:nth-of-type(5),
.research-card[data-node="housing"]:hover .research-icon svg path:nth-of-type(6),
.research-card[data-node="housing"]:hover .research-icon svg path:nth-of-type(7) {
    transform: translateY(-5px);
}
.research-card[data-node="housing"]:hover .research-icon svg circle:nth-of-type(5),
.research-card[data-node="housing"]:hover .research-icon svg circle:nth-of-type(6),
.research-card[data-node="housing"]:hover .research-icon svg circle:nth-of-type(7),
.research-card[data-node="housing"]:hover .research-icon svg circle:nth-of-type(8),
.research-card[data-node="housing"]:hover .research-icon svg circle:nth-of-type(9) {
    transform: translateY(-5px);
}

/* FIG 0.4: Public Services - Gateway scale & bouncing data flow arrow */
.research-card[data-node="publicservices"] .research-icon svg rect {
    transform-origin: 50px 47px;
}
.research-card[data-node="publicservices"]:hover .research-icon svg rect {
    transform: scale(1.05);
}
.research-card[data-node="publicservices"]:hover .research-icon svg path:nth-of-type(2) {
    animation: flow-arrow 1.2s infinite ease-in-out;
}
@keyframes flow-arrow {
    0% { transform: translateY(0); }
    50% { transform: translateY(3px); }
    100% { transform: translateY(0); }
}

/* FIG 0.5: AI Adoption - Pulsing connections & rotating attention circle */
.research-card[data-node="aiadoption"] .research-icon svg circle:nth-of-type(5) {
    transform-origin: 50px 50px;
}
.research-card[data-node="aiadoption"]:hover .research-icon svg circle:nth-of-type(5) {
    animation: rotate-attention 8s linear infinite;
}
.research-card[data-node="aiadoption"]:hover .research-icon svg line {
    animation: neural-glow 1.5s ease-in-out infinite alternate;
}
.research-card[data-node="aiadoption"]:hover .research-icon svg circle:nth-of-type(9),
.research-card[data-node="aiadoption"]:hover .research-icon svg circle:nth-of-type(11),
.research-card[data-node="aiadoption"]:hover .research-icon svg circle:nth-of-type(12) {
    animation: hidden-node-glow 1.2s ease-in-out infinite alternate;
}
@keyframes rotate-attention {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}
@keyframes neural-glow {
    0% { stroke-width: 0.8px; opacity: 0.4; }
    100% { stroke-width: 1.8px; opacity: 0.95; }
}
@keyframes hidden-node-glow {
    0% { opacity: 0.5; fill: var(--text-secondary); }
    100% { opacity: 1; fill: var(--text-primary); }
}

/* FIG 0.6: Demographics - Age cohort bars expanding outwards */
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(1),
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(2),
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(3),
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(4) {
    transform: translateX(-4px);
}
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(5),
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(6),
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(7),
.research-card[data-node="demographics"]:hover .research-icon svg rect:nth-of-type(8) {
    transform: translateX(4px);
}

/* Premium Subscription Modal Overlay & Elements */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 18, 25, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

body.modal-open {
    overflow: hidden;
}

.modal-container {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 48px;
    width: 90%;
    max-width: 520px;
    position: relative;
    box-shadow: 0 32px 80px rgba(15, 18, 25, 0.12);
    transform: scale(0.96) translateY(12px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.open .modal-container {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-close:hover {
    background-color: var(--text-primary);
    color: var(--bg-color);
    border-color: var(--text-primary);
}

.modal-close:hover svg {
    transform: rotate(90deg);
}

.modal-body {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.modal-overline {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.modal-description {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

#subscribe-form {
    width: 100%;
}

.input-group {
    position: relative;
    width: 100%;
    margin-bottom: 24px;
}

.modal-input {
    width: 100%;
    padding: 16px 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color-dark);
    background-color: rgba(255, 255, 255, 0.4);
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.modal-input:focus {
    outline: none;
    border-color: var(--text-primary);
    background-color: var(--white);
    box-shadow: 0 0 0 4px rgba(15, 18, 25, 0.04);
}

.modal-input.has-error {
    border-color: #A24E3D;
}

.modal-input.has-error:focus {
    box-shadow: 0 0 0 4px rgba(162, 78, 61, 0.1);
}

.error-message {
    display: block;
    font-size: 0.8rem;
    color: #A24E3D;
    margin-top: 8px;
    font-weight: 500;
    min-height: 18px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.error-message.show {
    opacity: 1;
}

.modal-submit-btn {
    width: 100%;
    height: 54px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--text-primary);
    color: var(--bg-color);
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid var(--text-primary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.modal-submit-btn:hover {
    background-color: transparent;
    color: var(--text-primary);
}

.modal-submit-btn.loading {
    pointer-events: none;
}

.modal-submit-btn .btn-text {
    transition: opacity 0.2s ease;
}

.modal-submit-btn.loading .btn-text {
    opacity: 0;
}

.btn-spinner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.modal-submit-btn.loading .btn-spinner {
    opacity: 1;
    animation: btn-spin 0.8s linear infinite;
}

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

/* Success State styling */
.modal-container .success-state {
    display: none;
}

.modal-container.success .form-state {
    display: none;
}

.modal-container.success .success-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 16px 0;
}

.success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(15, 18, 25, 0.05);
    color: var(--text-primary);
    margin-bottom: 24px;
}

.success-icon svg {
    width: 28px;
    height: 28px;
}

.modal-dismiss-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--text-primary);
    color: var(--bg-color);
    padding: 14px 28px;
    border-radius: 24px;
    font-size: 0.88rem;
    font-weight: 600;
    border: 1px solid var(--text-primary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    margin-top: 8px;
}

.modal-dismiss-btn:hover {
    background-color: transparent;
    color: var(--text-primary);
}

/* Mobile responsive fixes */
@media (max-width: 576px) {
    .modal-container {
        padding: 36px 24px;
        margin: 16px;
        max-width: calc(100% - 32px);
        border-radius: 20px;
    }
    
    .modal-close {
        top: 16px;
        right: 16px;
        width: 36px;
        height: 36px;
    }
    
    .modal-title {
        font-size: 2.1rem;
    }
    
    .modal-description {
        margin-bottom: 24px;
        font-size: 0.9rem;
    }
}