/* Remetis-inspired Modern Design System */

/* ========================================
   Variables & Design Tokens
======================================== */
:root {
    /* Modern Color Palette */
    --color-primary: #0f1932;
    --color-primary-dark: #070c1a;
    --color-accent: #e45834;
    --color-accent-hover: #d64525;
    --color-secondary: #4a90e2;
    --color-success: #00d4aa;
    --color-warning: #ffb347;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0f1932 0%, #1a2847 100%);
    --gradient-accent: linear-gradient(135deg, #e45834 0%, #ff6b4a 100%);
    --gradient-hero: linear-gradient(180deg, #0f1932 0%, #1a2847 50%, #2a3856 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    
    /* Typography Scale */
    --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --font-size-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --font-size-3xl: clamp(2rem, 1.7rem + 1.5vw, 2.5rem);
    --font-size-4xl: clamp(2.5rem, 2rem + 2.5vw, 3.5rem);
    --font-size-5xl: clamp(3rem, 2.3rem + 3.5vw, 4.5rem);
    
    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Spacing Scale */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    --spacing-5xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-card: 0 0 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 10px 40px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-spring: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-gray-800);
    background: var(--color-white);
    font-feature-settings: "palt" 1;
}

/* ========================================
   Enhanced Hero Section
======================================== */
.hero-modern {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 80px;
}

.hero-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(228, 88, 52, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(74, 144, 226, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(0, 212, 170, 0.05) 0%, transparent 50%);
    animation: floatBackground 20s ease-in-out infinite;
}

@keyframes floatBackground {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-20px, -20px) scale(1.05); }
    66% { transform: translate(20px, -10px) scale(0.95); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-2xl);
    font-weight: var(--font-weight-light);
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-cta-group {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* ========================================
   Modern Buttons
======================================== */
.btn-modern {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-modern:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary-modern {
    background: var(--gradient-accent);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(228, 88, 52, 0.3);
}

.btn-primary-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(228, 88, 52, 0.4);
}

.btn-outline-modern {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-outline-modern:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* ========================================
   Animated Floating Elements
======================================== */
.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    top: 0;
    left: 0;
    pointer-events: none;
}

.shape {
    position: absolute;
    opacity: 0.1;
}

.shape-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: var(--gradient-accent);
    animation: float 15s infinite ease-in-out;
}

.shape-square {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-xl);
    background: var(--gradient-primary);
    animation: float 20s infinite ease-in-out reverse;
}

.shape-triangle {
    width: 0;
    height: 0;
    border-left: 75px solid transparent;
    border-right: 75px solid transparent;
    border-bottom: 130px solid rgba(74, 144, 226, 0.2);
    animation: float 18s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-30px) rotate(120deg); }
    66% { transform: translateY(20px) rotate(240deg); }
}

/* ========================================
   Modern Card Designs
======================================== */
.card-modern {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.card-modern:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.card-modern:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 24px;
    color: var(--color-white);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.card-description {
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* ========================================
   Modern Section Styles
======================================== */
.section-modern {
    padding: var(--spacing-5xl) 0;
    position: relative;
}

.section-modern:nth-child(even) {
    background: var(--color-gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-label {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-lg);
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Grid Layouts
======================================== */
.grid-modern {
    display: grid;
    gap: var(--spacing-2xl);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

/* ========================================
   Gradient Text
======================================== */
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Modern Service Cards
======================================== */
.service-card-modern {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.service-card-modern::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(228, 88, 52, 0.05) 0%, transparent 70%);
    transition: transform var(--transition-slow);
}

.service-card-modern:hover::before {
    transform: scale(1.2);
}

.service-card-modern:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.service-number {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-gray-200);
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    line-height: 1;
}

.service-icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 10px 30px rgba(228, 88, 52, 0.3);
}

.service-icon {
    font-size: 36px;
    color: var(--color-white);
}

.service-title-modern {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.service-description-modern {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

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

.service-feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    color: var(--color-gray-700);
}

.service-feature-item::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(228, 88, 52, 0.1);
    color: var(--color-accent);
    font-weight: bold;
}

/* ========================================
   Statistics Section
======================================== */
.stats-section {
    background: var(--gradient-primary);
    padding: var(--spacing-4xl) 0;
    position: relative;
    overflow: hidden;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-3xl);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.stat-item {
    text-align: center;
    color: var(--color-white);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-base);
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   Testimonial Cards
======================================== */
.testimonial-modern {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    position: relative;
}

.testimonial-quote {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-left: var(--spacing-2xl);
}

.testimonial-quote::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 60px;
    color: var(--color-accent);
    opacity: 0.3;
    font-family: Georgia, serif;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: bold;
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: 2px;
}

.testimonial-role {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ========================================
   CTA Section
======================================== */
.cta-modern {
    background: var(--gradient-accent);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-4xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    margin: var(--spacing-5xl) 0;
}

.cta-modern::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.cta-title {
    font-size: var(--font-size-3xl);
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.cta-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.cta-button {
    background: var(--color-white);
    color: var(--color-accent);
    padding: var(--spacing-md) var(--spacing-3xl);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    display: inline-block;
    transition: all var(--transition-base);
    position: relative;
    z-index: 1;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
    
    .hero-cta-group {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-modern {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section-modern {
        padding: var(--spacing-3xl) 0;
    }
    
    .card-modern {
        padding: var(--spacing-xl);
    }
    
    .cta-modern {
        padding: var(--spacing-2xl);
    }
}

/* ========================================
   Scroll Animations Trigger
======================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   Loading Animation
======================================== */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ========================================
   Hover Effects
======================================== */
.hover-lift {
    transition: transform var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-scale {
    transition: transform var(--transition-base);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(228, 88, 52, 0.4);
}