/* ============================================
   iOS/Apple Inspired Design System
   ============================================ */

:root {
    /* ACT Brand Colors */
    --color-midnight-forest: #001818;
    --color-spring-green: #B2DE26;
    --color-white: #FFFFFF;
    --color-sand-gray: #EBE9E1;
    --color-moss-green: #394816;
    --color-seafoam-blue: #E0FFFF;
    --color-mint: #d9f09d;

    /* UI Colors */
    --color-bg: #081212; /* Slightly lighter than midnight forest */
    --color-text-primary: #F5F5F7; /* Apple's off-white */
    --color-text-secondary: #A1A1A6;
    --color-text-tertiary: #86868B;
    --color-accent: var(--color-spring-green);
    --color-border: rgba(255, 255, 255, 0.15);
    --color-card-bg: rgba(28, 28, 30, 0.7); /* Translucent dark grey */
    
    /* UI Metrics */
    --radius-l: 24px; /* More rounded */
    --radius-m: 16px;
    --radius-s: 12px;
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-secondary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.main-header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.75); /* iOS-like translucent header */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.main-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--color-text-primary);
}

.nav-links {
    display: none;
    list-style: none;
}

.nav-links li {
    display: inline;
    margin-left: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    transition: color 0.3s ease;
}

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

.mobile-menu-button {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-button span {
    display: block;
    width: 22px;
    height: 2px;
    margin: 5px;
    background-color: var(--color-text-primary);
    transition: all 0.3s ease-in-out;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    padding: 1rem 0;
    z-index: 999;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav a {
    display: block;
    text-align: center;
    padding: 1rem;
    color: var(--color-text-primary);
    text-decoration: none;
}

.mobile-nav.active {
    display: block;
}


/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    padding: 10rem 2rem 6rem;
    text-align: center;
}

.hero .avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 3px solid var(--color-accent);
    margin: 0 auto 2rem;
    object-fit: cover;
    box-shadow: 0 5px 25px rgba(178, 222, 38, 0.3);
}

.hero h1 {
    font-family: "SF Pro Display", "Helvetica Neue", sans-serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.hero .contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 2rem;
    color: var(--color-text-tertiary);
}

.hero .contact-info a {
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.hero .contact-info a:hover {
    color: var(--color-accent);
}

.hero-cta {
    margin-top: 2rem;
    text-align: center;
}

.resume-download-btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    background: var(--color-accent);
    color: var(--color-bg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-m);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(178, 222, 38, 0.3);
}

.resume-download-btn:hover {
    background: #9FC520;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(178, 222, 38, 0.4);
}

.resume-download-btn:active {
    transform: translateY(0);
}


/* ============================================
   GENERAL SECTION & CARD STYLES
   ============================================ */

.section {
    padding: 5rem 0;
    border-bottom: 1px solid var(--color-border);
}

.section:last-of-type {
    border-bottom: none;
}

.section-title {
    font-family: "SF Pro Display", "Helvetica Neue", sans-serif;
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-text-primary);
}

.subsection-title {
    font-family: "SF Pro Display", "Helvetica Neue", sans-serif;
    font-size: 1.5rem;
    font-weight: 500;
    text-align: center;
    margin-top: 3rem;
    margin-bottom: 2rem;
    color: var(--color-text-primary);
}

.card {
    background: var(--color-card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-l);
    padding: 2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(178, 222, 38, 0.5);
}

.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.card-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
}

.card-link:hover {
    text-decoration: underline;
}

/* ============================================
   SPECIFIC SECTION STYLES
   ============================================ */

/* Buffr Section */
.buffr-header {
    text-align: center;
    margin-bottom: 3rem;
}
.buffr-header .section-title {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}
.section-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    font-weight: 500;
}
.section-tagline {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}
.two-col { grid-template-columns: 1fr; }
.three-col { grid-template-columns: 1fr; }
.four-col { grid-template-columns: 1fr; }
.recognition-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}
.recognition-list li::before {
    content: '✓';
    color: var(--color-accent);
    margin-right: 0.5rem;
}
.learn-more-container {
    text-align: center;
    margin-top: 2rem;
}


/* Experience */
.experience-card {
    display: flex;
    flex-direction: column;
}
.experience-header {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1rem;
}
.company-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: var(--radius-s);
    background: var(--color-white);
    padding: 5px;
}
.logo-image {
    height: 60px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    margin-bottom: 1rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.education-logo {
    height: 80px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    margin: 0 auto 1.5rem auto;
    display: block;
}
.education-card {
    text-align: center;
}
.experience-title {
    flex: 1;
}
.job-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
}
.job-meta {
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
}
.job-points h4 {
    margin-top: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}
.job-points ul {
    padding-left: 1.2rem;
    margin-top: 0.5rem;
    color: var(--color-text-tertiary);
}

/* Awards Table */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-m);
    border: 1px solid var(--color-border);
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
tr:last-child td {
    border-bottom: none;
}
th {
    background-color: rgba(57, 72, 22, 0.5);
    color: var(--color-text-primary);
}

/* Certifications Carousel */
.carousel-container { position: relative; }
.carousel-track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 1rem; padding-bottom: 1rem; scrollbar-width: none; }
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-item { flex: 0 0 70%; scroll-snap-align: center; }
.carousel-item img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-m);
    object-fit: cover;
}
.recognition-card {
    text-align: center;
}
.recognition-card img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-m);
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}
.carousel-button { position: absolute; top: 50%; transform: translateY(-50%); background-color: rgba(0, 0, 0, 0.5); border: 1px solid var(--color-border); color: var(--color-white); border-radius: 50%; width: 44px; height: 44px; cursor: pointer; font-size: 1.5rem; z-index: 10; }
.carousel-button.prev { left: -22px; }
.carousel-button.next { right: -22px; }

/* Conferences */
.card-list { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.card-list .card h3 { font-size: 1.2rem; color: var(--color-text-primary); }
.card-list .card p {
    white-space: pre-line;
    margin-bottom: 1rem;
    color: var(--color-text-tertiary);
}


/* ============================================
   FOOTER
   ============================================ */

.main-footer-bottom {
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
}
.main-footer-bottom a { color: var(--color-text-tertiary); text-decoration: none; }
.main-footer-bottom a:hover { color: var(--color-accent); }


/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (min-width: 768px) {
    .nav-links { display: block; }
    .mobile-menu-button { display: none; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .two-col { grid-template-columns: repeat(2, 1fr); }
    .three-col { grid-template-columns: repeat(3, 1fr); }
    .four-col { grid-template-columns: repeat(4, 1fr); }
    .recognition-list { grid-template-columns: repeat(2, 1fr); }
    .carousel-item { flex-basis: 45%; }
    .card-list { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .carousel-item { flex-basis: 30%; }
    .card-list { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1440px) {
    .carousel-item { flex-basis: 23%; }
}

/* ============================================
   MOBILE-SPECIFIC OPTIMIZATIONS
   ============================================ */

@media (max-width: 767px) {
    .container {
        padding: 0 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .card {
        padding: 1.25rem;
    }

    .card-grid {
        gap: 1rem;
    }

    .education-logo {
        height: 60px;
    }

    .mobile-nav a {
        padding: 0.875rem;
        font-size: 1rem;
        min-height: 44px;
    }

    .card-link {
        padding: 0.5rem 0;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }

    img {
        max-width: 100%;
        height: auto;
    }
}