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

:root {
    --color-bg: #0a0a0a;
    --color-bg-secondary: #1a1a1a;
    --color-text: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-accent: #00ffcc;
    --color-accent-glow: rgba(0, 255, 204, 0.3);
    --color-accent-dark: #00d4aa;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.wave-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 50% 50%, rgba(0, 255, 204, 0.1) 0%, transparent 50%),
        url("data:image/svg+xml,%3Csvg width='100%25' height='800' viewBox='0 0 1920 800' preserveAspectRatio='xMidYMid slice' xmlns='http://www.w3.org/2000/svg'%3E%3Cg transform='rotate(20 960 400)'%3E%3Cpath d='M0,40 Q80,10 160,40 T320,40 T480,40 T640,40 T800,40 T960,40 T1120,40 T1280,40 T1440,40 T1600,40 T1760,40 T1920,40' stroke='%2300ffcc' stroke-width='2' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.15;0.02' dur='8s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,80 Q80,50 160,80 T320,80 T480,80 T640,80 T800,80 T960,80 T1120,80 T1280,80 T1440,80 T1600,80 T1760,80 T1920,80' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.12;0.02' dur='8s' begin='0.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,120 Q80,90 160,120 T320,120 T480,120 T640,120 T800,120 T960,120 T1120,120 T1280,120 T1440,120 T1600,120 T1760,120 T1920,120' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.10;0.02' dur='8s' begin='1s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,160 Q80,130 160,160 T320,160 T480,160 T640,160 T800,160 T960,160 T1120,160 T1280,160 T1440,160 T1600,160 T1760,160 T1920,160' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.10;0.02' dur='8s' begin='1.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,200 Q80,170 160,200 T320,200 T480,200 T640,200 T800,200 T960,200 T1120,200 T1280,200 T1440,200 T1600,200 T1760,200 T1920,200' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.09;0.02' dur='8s' begin='2s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,240 Q80,210 160,240 T320,240 T480,240 T640,240 T800,240 T960,240 T1120,240 T1280,240 T1440,240 T1600,240 T1760,240 T1920,240' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.09;0.02' dur='8s' begin='2.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,280 Q80,250 160,280 T320,280 T480,280 T640,280 T800,280 T960,280 T1120,280 T1280,280 T1440,280 T1600,280 T1760,280 T1920,280' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.08;0.02' dur='8s' begin='3s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,320 Q80,290 160,320 T320,320 T480,320 T640,320 T800,320 T960,320 T1120,320 T1280,320 T1440,320 T1600,320 T1760,320 T1920,320' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.08;0.02' dur='8s' begin='3.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,360 Q80,330 160,360 T320,360 T480,360 T640,360 T800,360 T960,360 T1120,360 T1280,360 T1440,360 T1600,360 T1760,360 T1920,360' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.07;0.02' dur='8s' begin='4s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,400 Q80,370 160,400 T320,400 T480,400 T640,400 T800,400 T960,400 T1120,400 T1280,400 T1440,400 T1600,400 T1760,400 T1920,400' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.07;0.02' dur='8s' begin='4.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,440 Q80,410 160,440 T320,440 T480,440 T640,440 T800,440 T960,440 T1120,440 T1280,440 T1440,440 T1600,440 T1760,440 T1920,440' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.06;0.02' dur='8s' begin='5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,480 Q80,450 160,480 T320,480 T480,480 T640,480 T800,480 T960,480 T1120,480 T1280,480 T1440,480 T1600,480 T1760,480 T1920,480' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.06;0.02' dur='8s' begin='5.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,520 Q80,490 160,520 T320,520 T480,520 T640,520 T800,520 T960,520 T1120,520 T1280,520 T1440,520 T1600,520 T1760,520 T1920,520' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.06;0.02' dur='8s' begin='6s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,560 Q80,530 160,560 T320,560 T480,560 T640,560 T800,560 T960,560 T1120,560 T1280,560 T1440,560 T1600,560 T1760,560 T1920,560' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.05;0.02' dur='8s' begin='6.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,600 Q80,570 160,600 T320,600 T480,600 T640,600 T800,600 T960,600 T1120,600 T1280,600 T1440,600 T1600,600 T1760,600 T1920,600' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.05;0.02' dur='8s' begin='7s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,640 Q80,610 160,640 T320,640 T480,640 T640,640 T800,640 T960,640 T1120,640 T1280,640 T1440,640 T1600,640 T1760,640 T1920,640' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.05;0.02' dur='8s' begin='7.5s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,680 Q80,650 160,680 T320,680 T480,680 T640,680 T800,680 T960,680 T1120,680 T1280,680 T1440,680 T1600,680 T1760,680 T1920,680' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.04;0.02' dur='8s' begin='0.25s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,720 Q80,690 160,720 T320,720 T480,720 T640,720 T800,720 T960,720 T1120,720 T1280,720 T1440,720 T1600,720 T1760,720 T1920,720' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.04;0.02' dur='8s' begin='0.75s' repeatCount='indefinite'/%3E%3C/path%3E%3Cpath d='M0,760 Q80,730 160,760 T320,760 T480,760 T640,760 T800,760 T960,760 T1120,760 T1280,760 T1440,760 T1600,760 T1760,760 T1920,760' stroke='%2300ffcc' stroke-width='1.5' fill='none' opacity='0.02'%3E%3Canimate attributeName='opacity' values='0.02;0.04;0.02' dur='8s' begin='1.25s' repeatCount='indefinite'/%3E%3C/path%3E%3C/g%3E%3C/svg%3E");
    background-size: auto, 100% auto;
    background-repeat: repeat-y;
    background-position: center;
    z-index: 0;
}

@media (max-width: 768px) {
    .wave-background {
        background-size: auto, 200% auto;
    }
}

.hero .container {
    position: relative;
    z-index: 1;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    animation: fadeInDown 1s ease-out;
}

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

.logo {
    position: relative;
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 4rem;
    font-weight: 900;
    color: var(--color-accent);
    text-shadow: 0 0 30px var(--color-accent-glow),
                 0 0 60px var(--color-accent-glow);
    letter-spacing: -0.05em;
}

.wave-logo {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 60px;
    color: var(--color-accent);
    opacity: 0.6;
    pointer-events: none;
}

.wave-path {
    animation: waveFlow 3s ease-in-out infinite;
}

.wave-path-2 {
    animation: waveFlow 3s ease-in-out infinite 0.5s;
}

@keyframes waveFlow {
    0%, 100% {
        d: path("M0,30 Q25,10 50,30 T100,30 T150,30 T200,30");
    }
    50% {
        d: path("M0,30 Q25,50 50,30 T100,30 T150,30 T200,30");
    }
}

.brand-name {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    animation: fadeIn 1s ease-out 0.3s both;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeIn 1s ease-out 0.6s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-bg);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px var(--color-accent-glow);
    animation: fadeIn 1s ease-out 0.9s both;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--color-accent-glow);
}

/* ===== About Section ===== */
.about {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

/* ===== Portfolio Section ===== */
.portfolio {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.project-card {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.8) 0%, rgba(10, 10, 10, 0.8) 100%);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(0, 255, 204, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 40px var(--color-accent-glow);
}

.project-card.coming-soon {
    opacity: 0.7;
}

.project-card.coming-soon:hover {
    opacity: 1;
}

.project-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: radial-gradient(circle at center, rgba(0, 255, 204, 0.3) 0%, rgba(0, 255, 204, 0.15) 70%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--spacing-md);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder svg {
    width: 100%;
    height: 100%;
}

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tech-tag {
    padding: 0.4rem 0.8rem;
    background: rgba(0, 255, 204, 0.1);
    border: 1px solid rgba(0, 255, 204, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 500;
}

.project-link {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-bg);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
}

.project-link:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 255, 204, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.contact .container {
    position: relative;
    z-index: 1;
}

.contact-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.6;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1.2rem 2.5rem;
    background: linear-gradient(135deg, rgba(0, 255, 204, 0.1) 0%, rgba(0, 255, 204, 0.05) 100%);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius);
    color: var(--color-accent);
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 255, 204, 0.1);
}

.contact-email:hover {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-bg);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--color-accent-glow);
}

.email-icon {
    width: 28px;
    height: 28px;
    transition: var(--transition);
}

.contact-email:hover .email-icon {
    transform: scale(1.1);
}

/* ===== Footer ===== */
.footer {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
    border-top: 1px solid rgba(0, 255, 204, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.footer-logo-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xs);
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    position: absolute;
    z-index: 1;
    text-shadow: 0 0 20px var(--color-accent-glow);
}

.footer-wave-logo {
    width: 100px;
    height: 30px;
    color: var(--color-accent);
    opacity: 0.6;
    pointer-events: none;
}

.footer-wave-path {
    animation: footerWaveFlow 3s ease-in-out infinite;
}

.footer-wave-path-2 {
    animation: footerWaveFlow 3s ease-in-out infinite 0.5s;
}

@keyframes footerWaveFlow {
    0%, 100% {
        d: path("M0,15 Q12.5,5 25,15 T50,15 T75,15 T100,15");
    }
    50% {
        d: path("M0,15 Q12.5,25 25,15 T50,15 T75,15 T100,15");
    }
}

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

.footer-links {
    text-align: right;
}

.footer-text {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .logo-text {
        font-size: 3rem;
    }
    
    .brand-name {
        font-size: 3rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-text {
        font-size: 1rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        text-align: center;
    }
    
    .logo-container {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 2.5rem;
    }
    
    .brand-name {
        font-size: 2.5rem;
    }
    
    .wave-logo {
        width: 150px;
        height: 45px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .cta-button {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Mobile Touch Optimizations ===== */
/* Custom tap highlight color */
* {
    -webkit-tap-highlight-color: var(--color-accent-glow);
}

/* Touch-friendly interactions */
@media (hover: none) and (pointer: coarse) {
    .project-card:active {
        transform: scale(0.98);
        border-color: var(--color-accent);
    }
    
    .cta-button:active,
    .project-link:active {
        transform: scale(0.95);
    }
    
    /* Disable hover effects on touch devices */
    .project-card:hover {
        transform: none;
    }
    
    .cta-button:hover,
    .project-link:hover {
        transform: none;
    }
}

/* Larger touch targets on mobile */
@media (max-width: 768px) {
    .tech-tag {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
    
    .project-link,
    .cta-button {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    .contact-subtitle {
        font-size: 1rem;
    }
    
    .contact-email {
        font-size: 1.1rem;
        padding: 1rem 1.5rem;
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* ===== Buy Me A Coffee Button ===== */
#bmc-wbtn {
    align-items: center;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    border-radius: 50%;
    bottom: 18px;
    box-shadow: 0 4px 15px var(--color-accent-glow);
    color: #fff;
    cursor: pointer;
    display: flex;
    font-weight: 600;
    height: 64px;
    justify-content: center;
    position: fixed;
    right: 18px;
    text-decoration: none;
    transform: scale(1);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    width: 64px;
    z-index: 9999;
}

#bmc-wbtn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px var(--color-accent-glow);
}

#bmc-wbtn img {
    width: 32px;
    height: 32px;
    filter: brightness(0) invert(1);
}

/* Mobile responsive */
@media (max-width: 768px) {
    #bmc-wbtn {
        height: 56px;
        width: 56px;
        bottom: 16px;
        right: 16px;
    }
    
    #bmc-wbtn img {
        width: 28px;
        height: 28px;
    }
}

/* ===== Selection Styling ===== */
::selection {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

::-moz-selection {
    background-color: var(--color-accent);
    color: var(--color-bg);
}