/* ====================================
   Tomorrow Proof - Creative Business Studio
   Minimal, high-end design inspired by COLLINS
   ==================================== */

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

:root {
    /* Colors */
    --color-bg: #FAFAFA;
    --color-text: #1A1A1A;
    --color-text-light: #666666;
    --color-border: #E0E0E0;
    --color-accent: #1A1A1A;
    
    /* Typography */
    --font-en: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-ja: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;
    --spacing-3xl: 12rem;
    
    /* Container */
    --container-max: 1400px;
    --container-padding: 2rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-ja);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 16px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.3;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.6;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 1.5rem var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-en);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-family: var(--font-en);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.05em;
}

/* Hero Section */
.hero {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    margin-top: 4rem;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.hero-brand {
    color: var(--color-text);
}

.hero-subtitle {
    color: var(--color-text-light);
}

.hero-title {
    font-family: var(--font-en);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-lg);
    max-width: 900px;
}

.hero-description {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    max-width: 700px;
}

.hero-note {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-light);
    letter-spacing: 0.05em;
}

/* Section Styles */
section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-family: var(--font-en);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

.section-tagline {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-weight: 300;
}

.section-intro {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* Services Section */
.services {
    background-color: #FFFFFF;
    padding: var(--spacing-3xl) 0;
}

/* Unified Service Flow */
.services-flow {
    max-width: 900px;
    margin: var(--spacing-xl) auto;
}

.flow-step {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.flow-step-main {
    background-color: rgba(26, 26, 26, 0.02);
    border: 2px solid var(--color-text);
}

.flow-number {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
    font-weight: 600;
}

.flow-title-ja {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.flow-title-en {
    font-family: var(--font-en);
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
}

.flow-description {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.flow-icons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-md) 0;
}

.flow-icon {
    font-size: 2rem;
    line-height: 1;
}

.flow-goal {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    font-style: italic;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.flow-arrow-down {
    text-align: center;
    font-size: 2rem;
    color: var(--color-text);
    margin: var(--spacing-md) 0;
    font-family: var(--font-en);
}

/* Flow Phases (for 90-day service) */
.flow-phases {
    margin: var(--spacing-md) 0;
    display: grid;
    gap: var(--spacing-md);
}

.flow-phase {
    background-color: #FFFFFF;
    border-left: 3px solid var(--color-text);
    padding: var(--spacing-md);
}

.phase-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.phase-number {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-light);
    letter-spacing: 0.1em;
}

.phase-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.phase-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.phase-items li {
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--color-text);
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: 0.5rem;
}

.phase-items li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-text-light);
}

.flow-strength {
    background-color: rgba(26, 26, 26, 0.05);
    padding: var(--spacing-md);
    border-radius: 6px;
    margin: var(--spacing-md) 0;
    font-size: 0.9375rem;
}

/* Services CTA */
.services-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.services-cta-link {
    font-family: var(--font-en);
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: inline-block;
    padding: 1rem 2.5rem;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.services-cta-link:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
    opacity: 1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.service-card {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

.service-number {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
}

.service-title-ja {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.service-title-en {
    font-family: var(--font-en);
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
}

.service-description {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.service-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.service-link {
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-family: var(--font-ja);
}

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

/* Service Diagram */
.service-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: 8px;
}

.diagram-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.diagram-icon {
    font-size: 2rem;
    line-height: 1;
}

.diagram-label {
    font-size: 0.8125rem;
    color: var(--color-text);
    text-align: center;
    font-weight: 500;
}

.diagram-arrow {
    font-family: var(--font-en);
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin: 0 0.5rem;
}

/* Service Process (for 90-day service) */
.service-card-featured {
    background-color: var(--color-bg);
}

.service-process {
    margin: var(--spacing-lg) 0;
}

.process-phase {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    border-left: 2px solid var(--color-text);
}

.phase-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.phase-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.phase-list li {
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--color-text);
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: 0.5rem;
}

.phase-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-text-light);
}

/* Service Strength */
.service-strength {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background-color: rgba(26, 26, 26, 0.03);
    border-radius: 6px;
}

.service-strength p {
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0;
}

/* Service Goal */
.service-goal {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin: var(--spacing-md) 0;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    font-style: italic;
}

/* Works Section */
.works {
    padding: var(--spacing-3xl) 0;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.work-item {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
}

.work-title {
    font-family: var(--font-en);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.work-description {
    font-family: var(--font-en);
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.works-note {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    text-align: center;
    margin-top: var(--spacing-lg);
    font-style: italic;
}

.works-link-wrapper {
    margin-top: var(--spacing-md);
    text-align: center;
}

.works-link {
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: inline-block;
    padding: 1rem 2rem;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.works-link:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
    opacity: 1;
}

/* About Section */
.about {
    background-color: #FFFFFF;
    padding: var(--spacing-3xl) 0;
}

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

.about-main {
    max-width: 600px;
}

.about-lead {
    font-family: var(--font-en);
    font-size: 1.5rem;
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.about-description {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--color-text-light);
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about-detail-item {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-md);
}

.about-detail-title {
    font-family: var(--font-en);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.about-detail-text {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text);
}

/* About Founder */
.about-founder {
    background-color: var(--color-bg);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border-radius: 8px;
}

.founder-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.founder-title {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.founder-name {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.founder-bio {
    font-family: var(--font-en);
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-light);
}

/* About Facts */
.about-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.fact-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.fact-label {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.fact-value {
    font-family: var(--font-en);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
}

.fact-note {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
    font-style: italic;
}

/* About Company & Other Services */
.about-company,
.about-other-services {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.about-subtitle {
    font-family: var(--font-en);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.about-company .about-facts {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.other-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.other-service-item {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
}

.other-service-title {
    font-family: var(--font-en);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.other-service-description {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Log Section */
.log {
    padding: var(--spacing-3xl) 0;
}

.log-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.log-item {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
    position: relative;
}

/* Locked Content Styles */
.log-item-locked {
    filter: blur(3px);
    opacity: 0.6;
    pointer-events: none;
}

.log-locked-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--color-text);
    color: var(--color-bg);
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    z-index: 10;
    filter: none;
    opacity: 1;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.log-type {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.log-title {
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.6;
}

.log-title a {
    color: var(--color-text);
    transition: color 0.3s ease;
}

.log-title a:hover {
    color: var(--color-text-light);
    opacity: 1;
}

.log-date {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.log-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.log-link {
    font-family: var(--font-en);
    font-size: 0.875rem;
    color: var(--color-text-light);
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.log-link:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
    opacity: 1;
}

/* At a Glance Section */
.glance {
    background-color: #FFFFFF;
    padding: var(--spacing-3xl) 0;
}

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

.glance-item {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
}

.glance-number {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.glance-description {
    font-family: var(--font-en);
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
}

.contact-content {
    max-width: 700px;
    margin: var(--spacing-lg) auto 0;
    text-align: center;
}

.contact-main {
    font-family: var(--font-en);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
}

.contact-description {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.contact-form-link {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.contact-button {
    font-family: var(--font-en);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-bg);
    background-color: var(--color-text);
    padding: 1.25rem 3rem;
    display: inline-block;
    border-radius: 4px;
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
}

.contact-button:hover {
    background-color: var(--color-text-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 26, 26, 0.15);
    opacity: 1;
}

.contact-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer p {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--color-text-light);
    letter-spacing: 0.05em;
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-3xl: 8rem;
        --spacing-2xl: 6rem;
    }
    
    .services-grid,
    .works-grid,
    .log-grid,
    .glance-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1.25rem;
        --spacing-3xl: 6rem;
        --spacing-2xl: 4rem;
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: var(--spacing-2xl) 0 var(--spacing-xl);
        min-height: 75vh;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .services-flow {
        padding: 0;
    }
    
    .flow-step {
        padding: var(--spacing-md);
    }
    
    .flow-phases {
        gap: var(--spacing-sm);
    }
    
    .flow-phase {
        padding: var(--spacing-sm);
    }
    
    .service-diagram {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .diagram-arrow {
        transform: rotate(90deg);
        margin: 0;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .about-facts {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .other-services-grid {
        grid-template-columns: 1fr;
    }
    
    .works-grid,
    .log-grid,
    .glance-grid {
        grid-template-columns: 1fr;
    }
    
    .log-links {
        flex-direction: column;
        align-items: stretch;
    }
    
    .log-link,
    .works-link {
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Smooth transitions */
section {
    opacity: 1;
    transition: opacity 0.3s ease;
}