/* ===================================
   88Process Website Styles
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #0f2942;
    --primary-dark: #081a2e;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-light: #6b7280;
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --bg-lighter: #f3f4f6;
    --border-color: #e5e7eb;
    --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);

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Layout */
    --container-max-width: 1200px;
    --header-height: 80px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.7;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
}

ul, ol {
    margin-left: 1.5rem;
    margin-bottom: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-white);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.btn-secondary:hover {
    background-color: var(--accent-color);
    color: var(--bg-white);
    transform: translateY(-2px);
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    margin: 0 auto;
}

/* Header / Navigation */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

#header.scrolled {
    box-shadow: var(--shadow-md);
}

#header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    transition: color var(--transition-fast);
}

.nav-brand a:hover {
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all var(--transition-base);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--bg-white);
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--bg-white);
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    color: var(--bg-white);
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.95);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-description {
    color: rgba(255, 255, 255, 0.85);
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

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

/* About Section */
.section-about {
    background-color: var(--bg-white);
}

.about-content {
    display: grid;
    gap: var(--spacing-2xl);
}

.about-main h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

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

.approach-item {
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: 1rem;
    transition: all var(--transition-base);
}

.approach-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.approach-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.approach-item h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.approach-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

/* Services Section */
.section-services {
    background-color: var(--bg-light);
}

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

.service-card {
    background-color: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.service-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

.service-list li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
}

/* Expertise Section */
.section-expertise {
    background-color: var(--bg-white);
}

.expertise-content {
    display: grid;
    gap: var(--spacing-3xl);
}

.expertise-block h3 {
    color: var(--primary-color);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.tech-category {
    background-color: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: 1rem;
}

.tech-category h4 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--accent-color);
}

.tech-list {
    list-style: none;
    margin: 0;
}

.tech-list li {
    padding: var(--spacing-sm);
    margin-bottom: 0;
    border-left: 3px solid transparent;
    transition: all var(--transition-fast);
}

.tech-list li:hover {
    border-left-color: var(--accent-color);
    background-color: rgba(37, 99, 235, 0.05);
}

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

.sector-card {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-light);
    border-radius: 1rem;
    transition: all var(--transition-base);
}

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

.sector-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.sector-card h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.sector-card p {
    font-size: 0.95rem;
    margin: 0;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.skill-tag {
    background-color: var(--bg-light);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.skill-tag:hover {
    background-color: var(--accent-color);
    color: var(--bg-white);
    border-color: var(--accent-color);
}

/* Projects Section */
.section-projects {
    background-color: var(--bg-light);
}

.projects-content {
    display: grid;
    gap: var(--spacing-3xl);
}

.project-featured {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--bg-white);
    padding: var(--spacing-3xl);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-xl);
}

.project-tag {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--bg-white);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.project-featured h3 {
    color: var(--bg-white);
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.project-featured h4 {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.project-period {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-lg);
}

.project-summary {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.project-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.project-col h5 {
    color: var(--bg-white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.project-col ul {
    list-style: none;
    margin: 0;
}

.project-col li {
    color: rgba(255, 255, 255, 0.85);
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.project-col li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
}

.project-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.meta-item {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
}

.meta-item strong {
    color: var(--bg-white);
}

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

.project-card {
    background-color: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

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

.project-card h4 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.project-subtitle {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.project-card .project-period {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.project-card > p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    flex-grow: 1;
}

.project-impact {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.project-impact span {
    background-color: var(--bg-lighter);
    color: var(--accent-color);
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.project-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.tag {
    background-color: var(--bg-lighter);
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Experience Section */
.section-experience {
    background-color: var(--bg-white);
}

.experience-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.experience-col h3 {
    color: var(--primary-color);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.cert-list,
.awards-list {
    display: grid;
    gap: var(--spacing-lg);
}

.cert-item,
.award-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: 1rem;
    transition: all var(--transition-base);
}

.cert-item:hover,
.award-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.cert-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.cert-details h4,
.award-details h4 {
    color: var(--primary-color);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.cert-details p,
.award-details p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

.award-year {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    flex-shrink: 0;
    width: 60px;
}

.experience-education,
.experience-languages {
    margin-top: var(--spacing-2xl);
}

.experience-education h3,
.experience-languages h3 {
    color: var(--primary-color);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.education-item {
    background-color: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    border-left: 4px solid var(--accent-color);
}

.education-item h4 {
    color: var(--primary-color);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.education-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

.languages-list {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.language-item {
    background-color: var(--bg-light);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    min-width: 150px;
}

.language-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
}

.language-level {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Contact Section */
.section-contact {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--bg-white);
}

.section-contact .section-title {
    color: var(--bg-white);
}

.section-contact .section-divider {
    background: linear-gradient(90deg, var(--bg-white), rgba(255, 255, 255, 0.5));
}

.contact-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.contact-intro .lead {
    color: rgba(255, 255, 255, 0.95);
}

.contact-intro p {
    color: rgba(255, 255, 255, 0.85);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.contact-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-card:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-xl);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.contact-card h4 {
    color: var(--bg-white);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.contact-card a {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    transition: color var(--transition-fast);
}

.contact-card a:hover {
    color: var(--bg-white);
}

/* Footer */
.footer {
    background-color: var(--primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
    color: var(--bg-white);
    margin-bottom: var(--spacing-xs);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--bg-white);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin: 0;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    section {
        padding: var(--spacing-2xl) 0;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

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

    .project-featured {
        padding: var(--spacing-xl);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }