/* CSS VARIABLES & THEME CONFIGURATION */
:root {
    /* Colors */
    --primary-color: #10b981;
    --primary-color-light: #34d399;
    --primary-color-hover: #059669;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-white: #ffffff;
    --bg-white: #ffffff;
    --bg-gray-light: #f9fafb;
    --border-gray: #e5e7eb;
    --border-gray-dark: #d1d5db;
    
    /* Glassmorphism Variables */
    --glass-bg: rgba(15, 23, 42, 0.8);
    --glass-bg-light: rgba(30, 41, 59, 0.7);
    --glass-bg-dark: rgba(255, 255, 255, 0.08);
    --glass-blur: 5px;
    --glass-blur-light: 10px;
    --glass-blur-heavy: 15px;
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* 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;
    
    /* Typography */
    --font-family-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

/*GLOBAL STYLES & RESETS*/
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family-sans);
    background-color: #f3f4f6;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/*  LAYOUT CONTAINERS*/
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
}

.section {
    padding: 4rem 0;
    background-color: transparent;
    margin: 0 2rem;
    border-radius: var(--radius-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-primary);
}

.content-card {
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
}

/* NAVIGATION */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background-color: #e5e7eb;
    border-bottom: 1px solid #d1d5db;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: #111827;
    text-decoration: none;
}

.nav-links-container {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    color: #111827;
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: 1rem;
    position: relative;
    transition: color var(--transition-normal);
    padding-bottom: var(--spacing-xs);
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

/* HERO SECTION */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
    margin: 0 2rem;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.hero-title {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 2rem;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
}

.hero-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrapper {
    width: 20rem;
    height: 20rem;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color-light), var(--primary-color));
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg-white);
}

/*BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

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

.btn-cv {
    background-color: var(--primary-color);
    color: var(--text-white);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* SKILLS SECTION*/
.skills-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--spacing-xl);
}

.skill-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

.skill-html { color: #ef4444; }
.skill-css { color: #3b82f6; }
.skill-js { color: #eab308; }
.skill-php { color: #a855f7; }
.skill-mysql { color: var(--primary-color); }
.skill-flask { color: #3776ab; }

.skill-name {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

/* PROJECTS SECTION */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.project-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.project-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
}

.project-blue { color: var(--primary-color); }
.project-green { color: #10b981; }
.project-purple { color: #a855f7; }
.project-orange { color: #f97316; }

.project-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

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

.project-link-text {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
    font-size: 0.95rem;
}

.project-link-text:hover {
    transform: translateX(4px);
    color: var(--primary-color-hover);
}

.project-link-text span {
    transition: transform var(--transition-normal);
}

.project-link-text:hover span {
    transform: translateX(2px);
}

/* WHY HIRE ME SECTION */
.why-hire-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.why-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-2xl);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.why-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--border-gray-dark);
}

.why-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.why-card:hover .why-icon {
    background: rgba(59, 130, 246, 0.2);
    transform: scale(1.1);
}

.why-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.why-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
    flex-grow: 1;
    font-size: 0.95rem;
}

.btn-primary-outlined {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-full);
    background-color: transparent;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary-outlined:hover {
    background-color: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.2);
}

/*CONTACT SECTION */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-text {
    font-size: 1.125rem;
    color: var(--text-primary);
}

.contact-social {
    display: flex;
    gap: var(--spacing-xl);
}

.social-link {
    font-size: 2.5rem;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-link.linkedin {
    color: #0077b5;
}

.social-link.linkedin:hover {
    color: #005885;
}

.social-link.whatsapp {
    color: #25d366;
}

.social-link.whatsapp:hover {
    color: #128c7e;
}

.contact-form {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-lg);
    background-color: var(--bg-gray-light);
    border: 1px solid var(--border-gray-dark);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    width: 100%;
    background-color: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-lg);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: background-color var(--transition-normal);
}

.form-submit:hover {
    background-color: var(--primary-color-hover);
}

/* ANIMATIONS & EFFECTS */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.typewriter-cursor::after {
    content: '|';
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* FOOTER */
footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--text-muted);
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-hire-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .section {
        padding: 2rem 0;
    }
    
    .hero {
        margin: 0 1rem;
    }
    
    .hero-container {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-image-container {
        order: -1;
    }
    
    .hero-image-wrapper {
        width: 14rem;
        height: 14rem;
        max-width: 80%;
    }
    
    .hero-image {
        width: 100%;
        height: 100%;
    }
    
    .hero-title {
        font-size: 2.5rem;
        text-align: center;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
        text-align: center;
    }
    
    .hero-description {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .why-hire-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .nav-links-container {
        gap: var(--spacing-lg);
        font-size: 0.875rem;
    }
    
    .nav-brand {
        font-size: 1.25rem;
    }
}

@media (max-width: 640px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links-container {
        gap: var(--spacing-md);
        font-size: 0.75rem;
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
}