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

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-sidebar-bg: #f8fafc;
    --color-border: #e5e7eb;
    --color-accent: #059669;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --transition: 0.2s ease;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Layout ===== */
.container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    background-color: var(--color-sidebar-bg);
    border-right: 1px solid var(--color-border);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.profile {
    text-align: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.title {
    font-size: 0.95rem;
    color: var(--color-primary);
    font-weight: 500;
}

.sidebar h2 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.contact ul,
.languages ul {
    list-style: none;
}

.contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

.contact .icon {
    flex-shrink: 0;
    font-size: 1rem;
    width: 1.25em;
    text-align: center;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tags span {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--transition);
}

.skill-tags span:hover {
    background-color: var(--color-primary);
    color: white;
}

.languages li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

.languages li:last-child {
    border-bottom: none;
}

.languages .level {
    font-size: 0.8rem;
    color: var(--color-text-light);
    background-color: var(--color-bg);
    padding: 0.125rem 0.5rem;
    border-radius: 9999px;
}

/* ===== Main Content ===== */
.main-content {
    padding: 2.5rem 3rem;
    max-width: 800px;
}

.section {
    margin-bottom: 2.5rem;
}

.section h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

.objective {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===== Experience ===== */
.experience {
    margin-bottom: 2rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--color-border);
    position: relative;
}

.experience::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 0.5rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 2px solid var(--color-bg);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.experience header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.experience h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
}

.experience .company {
    font-size: 0.95rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-top: 0.25rem;
}

.experience .date {
    font-size: 0.85rem;
    color: var(--color-text-light);
    white-space: nowrap;
    background-color: var(--color-sidebar-bg);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-weight: 500;
}

.achievements {
    list-style: none;
}

.achievements li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.achievements li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ===== Projects ===== */
.project {
    background-color: var(--color-sidebar-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.project:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.project h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.375rem;
}

.tech-stack {
    font-size: 0.85rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.project p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.project-link {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ===== Education ===== */
.education h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.education .school {
    font-size: 0.95rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.education .date {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* ===== Certificates ===== */
.certificates {
    list-style: none;
}

.certificates li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--color-text-light);
}

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

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1.5rem;
        padding: 1.5rem;
    }

    .profile {
        border-bottom: none;
        padding-bottom: 0;
        flex: 1;
        min-width: 200px;
        text-align: left;
    }

    .avatar-placeholder {
        margin: 0 0 0.75rem 0;
    }

    .sidebar > *:not(.profile) {
        flex: 1;
        min-width: 200px;
    }

    .main-content {
        padding: 2rem;
    }
}

@media (max-width: 600px) {
    html {
        font-size: 14px;
    }

    .sidebar {
        flex-direction: column;
    }

    .main-content {
        padding: 1.5rem 1rem;
    }

    .experience header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===== Print Styles ===== */
@media print {
    .container {
        display: block;
    }

    .sidebar {
        position: static;
        height: auto;
        border: none;
        background: none;
        padding: 0;
        margin-bottom: 2rem;
        flex-direction: column;
    }

    .profile {
        text-align: left;
        border: none;
        padding: 0;
    }

    .avatar-placeholder {
        margin: 0 0 1rem 0;
    }

    .skill-tags span {
        background: none;
        border: 1px solid var(--color-border);
        color: var(--color-text);
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .main-content {
        padding: 0;
        max-width: none;
    }

    .project {
        background: none;
        border: 1px solid var(--color-border);
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .experience::before {
        background: var(--color-primary);
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .certificates li::before,
    .achievements li::before {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

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