/* COMPREHENSIVE MOBILE ENHANCEMENTS FOR COMPLETE MOBILE COMPATIBILITY */

/* Base mobile-first approach */
html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    touch-action: manipulation;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    max-width: 100vw;
}

/* Mobile body padding for fixed navigation */
@media (max-width: 768px) {
    body {
        padding-top: 70px !important;
    }
}

/* Fix iOS viewport issues */
@supports (-webkit-appearance: none) {
    .section {
        min-height: -webkit-fill-available;
    }
}

/* ===== ENHANCED MOBILE NAVIGATION - FORCE VISIBILITY ===== */
@media (max-width: 768px) {
    .main-nav {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        z-index: 1000 !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        -webkit-backdrop-filter: blur(20px);
        backdrop-filter: blur(20px);
        background: rgba(13, 27, 42, 0.95) !important;
        padding: 10px 0 !important;
        margin: 0 !important;
        border-bottom: 1px solid rgba(240, 165, 0, 0.1);
    }
    
    .main-nav ul {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: wrap !important;
        justify-content: center !important;
        align-items: center !important;
        gap: 5px !important;
        padding: 0 10px !important;
        margin: 0 !important;
        list-style: none !important;
        width: 100% !important;
    }
    
    .main-nav li {
        display: block !important;
        flex: none !important;
    }
    
    .main-nav a {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        padding: 8px 12px !important;
        font-size: 0.85rem !important;
        border-radius: 20px !important;
        white-space: nowrap !important;
        min-height: 44px !important;
        position: relative !important;
        overflow: hidden !important;
        text-decoration: none !important;
        color: var(--off-white) !important;
        background: rgba(26, 45, 66, 0.3) !important;
        transition: all 0.3s ease !important;
    }
    
    .contact-nav-btn {
        background: linear-gradient(135deg, var(--gold), #ffa500) !important;
        color: var(--navy-dark) !important;
        font-weight: 600 !important;
    }
}

/* Very small screens - collapsible navigation */
@media (max-width: 480px) {
    .main-nav {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 1000 !important;
        background: rgba(13, 27, 42, 0.95) !important;
        -webkit-backdrop-filter: blur(20px) !important;
        backdrop-filter: blur(20px) !important;
        padding: 10px 0 !important;
        margin: 0 !important;
        border-bottom: 1px solid rgba(240, 165, 0, 0.1) !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .mobile-menu-toggle {
        display: block;
        position: absolute;
        top: 50%;
        left: 20px;
        transform: translateY(-50%);
        background: var(--gold);
        color: var(--navy);
        border: none;
        padding: 10px;
        border-radius: 50%;
        font-size: 1.2rem;
        cursor: pointer;
        z-index: 1001;
        min-width: 44px;
        min-height: 44px;
        align-items: center;
        justify-content: center;
    }
    
    .main-nav ul {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(13, 27, 42, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        gap: 10px;
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        border-radius: 0 0 20px 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    
    .main-nav.menu-open ul {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .main-nav a {
        width: 100%;
        max-width: 200px;
        text-align: center;
        padding: 12px;
        font-size: 0.9rem;
        margin: 5px 0;
    }
}

/* ===== HEADER/PROFILE MOBILE OPTIMIZATIONS ===== */
@media (max-width: 768px) {
    header {
        padding: 20px 15px;
        text-align: center;
    }
    
    .profile-img {
        width: 120px;
        height: 120px;
        margin-bottom: 15px;
    }
    
    h1 {
        font-size: clamp(1.8rem, 5vw, 2.5rem);
        margin-bottom: 10px;
        line-height: 1.2;
    }
    
    .tagline {
        font-size: clamp(0.9rem, 3vw, 1.1rem);
        margin-bottom: 15px;
        padding: 0 10px;
    }
    
    header p {
        font-size: clamp(0.85rem, 2.5vw, 1rem);
        line-height: 1.5;
        margin-bottom: 20px;
        padding: 0 15px;
    }
    
    .cv-button {
        padding: 12px 20px;
        font-size: 0.9rem;
        min-height: 48px;
    }
}

/* ===== SECTION MOBILE OPTIMIZATIONS ===== */
@media (max-width: 768px) {
    .section {
        padding: 40px 15px 30px 15px;
        min-height: auto;
    }
    
    .page-title {
        font-size: clamp(1.8rem, 5vw, 2.2rem);
        margin-bottom: 10px;
        text-align: center;
    }
    
    .page-subtitle {
        font-size: clamp(0.9rem, 3vw, 1.1rem);
        margin-bottom: 25px;
        text-align: center;
        padding: 0 10px;
    }
    
    .section-title {
        font-size: clamp(1.3rem, 4vw, 1.6rem);
        margin-bottom: 15px;
        text-align: center;
    }
    
    .card {
        margin-bottom: 20px;
        padding: 20px 15px;
        border-radius: 15px;
    }
}

/* ===== SKILLS SECTION MOBILE ===== */
@media (max-width: 768px) {
    .skills-list {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 10px;
        justify-items: center;
    }
    
    .skill {
        padding: 12px 8px;
        font-size: 0.8rem;
        min-height: 44px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        border-radius: 12px;
        width: 100%;
    }
    
    .skill i {
        font-size: 1.2rem;
        margin-bottom: 5px;
    }
}

@media (max-width: 480px) {
    .skills-list {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 8px;
    }
    
    .skill {
        padding: 10px 6px;
        font-size: 0.75rem;
    }
}

/* ===== PROJECT CARDS MOBILE ===== */
@media (max-width: 768px) {
    .projects-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .project-card {
        padding: 20px;
        border-radius: 15px;
    }
    
    .project-title {
        font-size: clamp(1.1rem, 3.5vw, 1.3rem);
        margin-bottom: 12px;
        line-height: 1.3;
    }
    
    .project-desc {
        font-size: clamp(0.85rem, 2.5vw, 0.95rem);
        line-height: 1.5;
        margin-bottom: 15px;
    }
    
    .view-project {
        padding: 10px 16px;
        font-size: 0.85rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 25px;
    }
}

/* ===== PDF GALLERY MOBILE ===== */
@media (max-width: 768px) {
    .pdf-section {
        margin-bottom: 30px;
    }
    
    .pdf-section-title {
        font-size: clamp(1.3rem, 4vw, 1.6rem);
        text-align: center;
        margin-bottom: 10px;
    }
    
    .pdf-section-description {
        font-size: clamp(0.85rem, 2.5vw, 0.95rem);
        text-align: center;
        margin-bottom: 20px;
        padding: 0 15px;
    }
    
    .pdf-gallery {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 15px;
        padding: 0 10px;
    }
    
    .pdf-card {
        padding: 20px 15px;
        border-radius: 15px;
        text-align: center;
    }
    
    .pdf-title {
        font-size: clamp(0.95rem, 3vw, 1.1rem);
        line-height: 1.3;
        margin-bottom: 15px;
    }
    
    .pdf-link {
        padding: 12px 20px;
        font-size: 0.85rem;
        min-height: 44px;
        border-radius: 25px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .pdf-gallery {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 5px;
    }
    
    .pdf-card {
        padding: 18px 12px;
    }
    
    .pdf-title {
        font-size: clamp(0.9rem, 3.5vw, 1rem);
    }
}

/* ===== TIMELINE MOBILE ===== */
@media (max-width: 768px) {
    .timeline-container {
        padding: 20px 15px;
        border-radius: 15px;
    }
    
    .timeline-content {
        margin-bottom: 25px;
        padding: 15px;
        border-left: 3px solid var(--gold);
        border-radius: 8px;
        background: rgba(26, 45, 66, 0.3);
    }
    
    .content-title {
        font-size: clamp(1.1rem, 3.5vw, 1.3rem);
        margin-bottom: 8px;
        line-height: 1.3;
    }
    
    .content-organization {
        font-size: clamp(0.9rem, 2.8vw, 1rem);
        margin-bottom: 6px;
    }
    
    .content-date {
        font-size: clamp(0.8rem, 2.5vw, 0.9rem);
        margin-bottom: 10px;
    }
    
    .content-description {
        font-size: clamp(0.85rem, 2.5vw, 0.95rem);
        line-height: 1.5;
    }
}

/* ===== BLOG POSTS MOBILE ===== */
@media (max-width: 768px) {
    .blog-posts {
        gap: 20px;
    }
    
    .blog-post {
        padding: 20px 15px;
        border-radius: 15px;
    }
    
    .blog-title {
        font-size: clamp(1.1rem, 3.5vw, 1.3rem);
        margin-bottom: 12px;
        line-height: 1.3;
    }
    
    .blog-excerpt {
        font-size: clamp(0.85rem, 2.5vw, 0.95rem);
        line-height: 1.5;
        margin-bottom: 15px;
    }
    
    .blog-read-more {
        padding: 10px 16px;
        font-size: 0.85rem;
        min-height: 44px;
        border-radius: 25px;
    }
    
    .blog-full-content {
        margin-top: 15px;
    }
    
    .blog-full-content p,
    .blog-full-content li {
        font-size: clamp(0.85rem, 2.5vw, 0.95rem);
        line-height: 1.6;
    }
    
    .blog-full-content h4 {
        font-size: clamp(1rem, 3vw, 1.2rem);
        margin: 15px 0 10px 0;
    }
}

/* ===== CONTACT FORM MOBILE ===== */
@media (max-width: 768px) {
    .contact-form {
        padding: 20px 15px;
        border-radius: 15px;
        margin-bottom: 25px;
    }
    
    .form-header h2 {
        font-size: clamp(1.3rem, 4vw, 1.6rem);
        margin-bottom: 8px;
    }
    
    .form-header p {
        font-size: clamp(0.85rem, 2.5vw, 0.95rem);
        margin-bottom: 20px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .form-group label {
        font-size: clamp(0.9rem, 2.8vw, 1rem);
        margin-bottom: 8px;
        display: block;
    }
    
    .form-group input,
    .form-group textarea {
        width: 100%;
        padding: 12px 15px;
        font-size: clamp(0.9rem, 2.8vw, 1rem);
        border-radius: 8px;
        min-height: 44px;
        box-sizing: border-box;
    }
    
    .form-group textarea {
        min-height: 120px;
        resize: vertical;
    }
    
    .send-button {
        width: 100%;
        padding: 15px;
        font-size: clamp(0.9rem, 3vw, 1rem);
        min-height: 50px;
        border-radius: 25px;
        margin-top: 10px;
    }
    
    .contact-links {
        display: flex;
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }
    
    .contact-links a {
        width: 50px;
        height: 50px;
        font-size: 1.4rem;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ===== FOOTER MOBILE ===== */
@media (max-width: 768px) {
    .footer {
        padding: 20px 15px;
        text-align: center;
        border-radius: 15px 15px 0 0;
    }
    
    .footer p {
        font-size: clamp(0.8rem, 2.5vw, 0.9rem);
        margin-bottom: 15px;
    }
    
    .footer-links {
        display: flex;
        justify-content: center;
        gap: 15px;
    }
    
    .footer-links a {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ===== TOUCH INTERACTIONS ===== */
/* Enhanced touch feedback */
@media (hover: none) {
    .card:active {
        transform: translateY(-2px) scale(0.98);
        box-shadow: 0 5px 15px rgba(240, 165, 0, 0.2);
        transition: all 0.1s ease;
    }
    
    .project-card:active {
        transform: translateY(-2px) scale(0.98);
    }
    
    .pdf-card:active {
        transform: translateY(-2px) scale(0.98);
    }
    
    button:active,
    .cv-button:active,
    .send-button:active,
    .view-project:active,
    .pdf-link:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
    
    .nav-link:active {
        transform: scale(0.95);
        background: rgba(240, 165, 0, 0.2);
    }
}

/* Touch device optimizations and feedback */
.touch-device * {
    -webkit-tap-highlight-color: rgba(240, 165, 0, 0.2);
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

.touch-device input,
.touch-device textarea {
    -webkit-user-select: text;
    user-select: text;
}

/* Enhanced touch feedback */
.touch-active {
    transform: scale(0.95);
    opacity: 0.8;
    transition: all 0.15s ease;
}

.nav-link.touch-active {
    transform: scale(0.95);
    background: rgba(240, 165, 0, 0.2);
    color: var(--gold);
}

.card.touch-active,
.project-card.touch-active,
.pdf-card.touch-active {
    transform: scale(0.98) translateY(-2px);
    box-shadow: 0 8px 25px rgba(240, 165, 0, 0.2);
}

.send-button.touch-active,
.cv-button.touch-active {
    transform: scale(0.95);
    background: rgba(240, 165, 0, 0.9);
}

/* Prevent zoom on input focus (iOS) */
@media (max-width: 768px) {
    input, textarea, select {
        font-size: 16px !important;
        -webkit-appearance: none;
        appearance: none;
    }
    
    input:focus, textarea:focus, select:focus {
        outline: none;
        border-color: var(--gold);
        box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.1);
    }
}

/* Enhanced mobile scrolling */
* {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

/* Mobile-specific animations */
@media (max-width: 768px) {
    .hover-effect {
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .hover-effect:hover,
    .hover-effect:focus {
        transform: translateY(-4px) scale(1.01);
        box-shadow: 0 8px 20px rgba(240, 165, 0, 0.2);
    }
    
    .hover-effect:active {
        transform: translateY(-2px) scale(0.99);
    }
}

/* Fix viewport units on mobile browsers */
:root {
    --vh: 1vh;
}

@media (max-width: 768px) {
    .section {
        min-height: calc(var(--vh, 1vh) * 100);
        padding: 60px 15px 40px 15px;
    }
    
    .section:first-child {
        padding-top: 20px;
    }
}

/* Ensure content doesn't get hidden behind navigation */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    body.mobile-device {
        padding-top: 75px;
    }
}

/* Performance optimizations for mobile */
@media (max-width: 768px) {
    * {
        will-change: auto;
    }
    
    .card,
    .project-card,
    .pdf-card,
    button,
    .nav-link {
        will-change: transform, box-shadow;
    }
    
    /* Reduce motion for users who prefer it */
    @media (prefers-reduced-motion: reduce) {
        * {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }
}

/* Mobile orientation handling */
@media (orientation: landscape) and (max-height: 500px) {
    .section {
        padding: 40px 15px 20px 15px;
    }
    
    .main-nav {
        padding: 8px 0;
    }
    
    .main-nav a {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
    
    body {
        padding-top: 60px;
    }
}

/* Extra small screens (very old phones) */
@media (max-width: 320px) {
    .section {
        padding: 60px 10px 30px 10px;
    }
    
    .main-nav a {
        padding: 6px 8px;
        font-size: 0.75rem;
    }
    
    .profile-img {
        width: 100px;
        height: 100px;
    }
    
    h1 {
        font-size: 1.6rem;
    }
    
    .tagline {
        font-size: 0.85rem;
    }
}