:root {
    /* ===== Colors ===== */
    --color-primary: blue;
    --color-bg: #000;
    --color-bg-light: #fff;
    --color-btn-hover: #e7e7e7;
    --color-text: #fff;
    --color-title: var(--color-primary);
    /* ===== Typography ===== */
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    /* ===== Sizing & Spacing ===== */
    --border-radius-lg: 13%;
    --border-radius-btn: 100px;
    --navbar-width: 7vw;
    --navbar-top: 6vh;
    --navbar-right: 3vw;
    --navbar-height: 60vh;
    /* ===== Z-Index ===== */
    --z-navbar: 3;
    --z-overlay: 2;
    --z-base: 1;
    /* ===== Transitions ===== */
    --transition-fast: 0.2s;
    /* ===== Menu ===== */
    --menu-radius: 100px;
    --border-menu: 0.3vh solid var(--color-primary);
    --menu-font-size: 1vw;
    /* ===== About ===== */
    --primary: #22223b;
    --accent: #4ea8de;
    --background: #f8f9fa;
    --header-gradient: linear-gradient(90deg, #4ea8de 0%, #22223b 100%);
    --shadow: 0 2px 12px rgba(34,34,59,0.06);
    /* ===== Centralized Responsive Breakpoints (Bootstrap style) ===== */
    --breakpoint-xs: 575.98px; /* Extra small devices (portrait phones) */
    --breakpoint-sm: 767.98px; /* Small devices (landscape phones/tablets) */
    --breakpoint-md: 991.98px; /* Medium devices (tablets/laptops) */
    --breakpoint-lg: 1199.98px; /* Large devices (desktops) */
    --breakpoint-xl: 1399.98px; /* Extra large devices (large desktops) */
}

/* === Base Styles === */
html, body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    min-height: 100%;
}

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

    a:focus {
        outline: none;
    }

    a.active .menu-item {
        background-color: var(--color-btn-hover);
        color: var(--color-bg);
    }

h1:focus {
    outline: none;
}

main {
    min-height: 100vh;
    width: 100vw;
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
}

/* === Error UI === */
#blazor-error-ui {
    background: #FFFDE4;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    font-family: var(--font-main);
    color: #333;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,...) left center no-repeat;
    padding: 1rem 1rem 1rem 3.7rem;
    color: var(--color-text);
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

/* === Loading Indicators === */
.loading-progress circle {
    fill: none;
    stroke: var(--color-text);
    stroke-width: 1.5rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}
    .loading-progress circle:last-child {
        stroke: var(--color-primary);
        stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
        transition: stroke-dasharray 0.05s ease-in-out;
    }

.title {
    text-align: center;
    color: var(--color-title);
    font-family: var(--font-main);
    font-size: clamp(1rem, 6vw, 6vh);
    font-weight: 600;
    cursor: default;
}

.loading-progress-wrapper {
    position: relative;
    text-align: center;
}

.loading-progress-text {
    position: absolute;
    top: 30%;
    right: 0;
    left: 0;
    /* color: var(--color-title); */
    font-family: var(--font-main);
    font-size: clamp(1rem, 6vw, 6vh);
    font-weight: 600;
    cursor: default;
}
    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

.loading {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
}
/* === Wheel/Segment SVG Styles === */
.skills-wheel-group svg {
    outline: none;
}

.wheel-group {
    cursor: pointer;
}

.segment {
    fill: transparent;
    stroke: var(--color-primary);
    stroke-width: 2;
    transition: fill 0.3s;
    outline: none;
}

    .segment:hover {
        fill: #357ABD;
    }

.activesegment {
    fill: #357ABD;
}

text {
    font-size: 20px;
    font-weight: bold;
    fill: var(--color-text);
    text-anchor: middle;
}

/* === Accessibility and Utility === */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.uppercase {
    text-transform: uppercase;
}

.font-bold {
    font-weight: 700;
}

.button {
    cursor: pointer;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
    border-radius: var(--border-radius-btn);
    border: var(--border-menu);
    font-size: 1.3vw;
    font-weight: 600;
    text-transform: uppercase;
    padding: 1.2vh 3vw;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

    .button:hover, .button:focus {
        background-color: var(--color-btn-hover);
        color: var(--color-bg);
        outline: none;
        box-shadow: 0 0 0 2px var(--color-primary) inset;
    }



/* === CENTRALIZED RESPONSIVE QUERIES (Unified Breakpoints) === */

/* XS: Phones (<576px) */
@media (max-width: 575.98px) {
    /* Loading text */
    .title, .loading-progress-text {
        font-size: 1.5rem;
        inset: 10vh 0 auto 0;
    }

    .loading-progress-text {
        top: 50%;
    }

    .loading-progress {
        width: 10rem;
        height: 10rem;
        margin: 10vh auto 1rem auto;
    }

    text {
        font-size: 14px;
    }

    .header-background {
        display: none;
    }

    /* Index Page 
    .profile-image-section {
        display: none;
    }*/

    /* About Page */
    .about-profile {
        flex-direction: column;
        align-items: center;
    }

    .profile-img {
        margin-right: 0;
    }
    .personal-details {
        text-align: center;
    }
    .years {
        display: table;
    }
}

/* SM: Tablets (≥576px to <768px) */
@media (min-width: 576px) and (max-width: 767.98px) {
    /* Loading text */
    .title, .loading-progress-text {
        font-size: 2rem;
        inset: 12vh 0 auto 0;
    }

        .loading-progress-text{
            top: 50%;
        }

        .loading-progress {
            width: 12rem;
            height: 12rem;
            margin: 12vh auto 1rem auto;
        }

    text {
        font-size: 16px;
    }

    .header-background {
        display: none;
    }

    /* Index Page 
    .profile-image-section {
        display: none;
    }*/

    /* About Page */
    .profile-img {
        margin-right: 2rem;
    }

    /* .personal-details {
        text-align: center;
    }*/
}

/* MD: Tablets/Laptops (≥768px to <992px) */
@media (min-width: 768px) and (max-width: 991.98px) {
    /* Loading text */
    .title, .loading-progress-text {
        font-size: 2.5rem;
        inset: 15vh 0 auto 0;
    }

    .loading-progress-text {
        top: 50%;
    }

    .loading-progress {
        width: 14rem;
        height: 14rem;
        margin: 15vh auto 1rem auto;
    }

    text {
        font-size: 18px;
    }

    /* Index Page
    .profile-image-section {
        display: none;
    } */
 
    /* About, Contact, Skills - stack columns for smaller laptops/tablets */
    .about-container {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "profile"
            "cert"
            "exp"
            "educ";
    }

    .contact-container {
        grid-template-areas:
            "header"
            "info"
            "form";
    }

    .skills-container {
        grid-template-areas:
            "header"
            "wheel"
            "explanation";
    }

    .header-background {
        display: none;
    }

    /* About Page */
    .profile-img {
        margin-right: 2rem;
    }

    .personal-details {
        text-align: left;
    }
}

/* LG: Desktops (≥992px to <1200px) */
@media (min-width: 992px) and (max-width: 1199.98px) {
    .title, .loading-progress-text {
        font-size: 3rem;
    }

    .loading-progress {
        width: 15rem;
        height: 15rem;
    }

    text {
        font-size: 20px;
    }
    /* About, Contact, Skills - desktop layouts */
    .about-container {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "profile"
            "cert"
            "exp"
            "educ";
    }

    .about-header {
        grid-area: header;
    }

    .about-profile {
        grid-area: profile;
    }

    .about-certifications {
        grid-area: cert;
    }

    .about-experience {
        grid-area: exp;
    }

    .about-education {
        grid-area: educ;
    }

    .contact-container {
        grid-template-columns: 1fr 2fr;
        grid-template-areas:
            "header header"
            "info form";
    }

    .contact-header {
        grid-area: header;
    }

    .contact-info {
        grid-area: info;
    }

    .contact-form {
        grid-area: form;
    }

    .skills-container {
        grid-template-columns: 1fr 2fr;
        grid-template-areas:
            "header header"
            "wheel explanation";
    }

    .skills-header {
        grid-area: header;
    }

    .skills-wheel-panel {
        grid-area: wheel;
    }

    .skills-explanation-panel {
        grid-area: explanation;
    }

    .skills-details-group {
        flex-direction: column;
    }

    /* About Page */
    .profile-img {
        margin-right: 2rem;
    }

    .personal-details {
        text-align: left;
    }
}

/* XL: Large desktops (≥1200px to <1400px) */
@media (min-width: 1200px) and (max-width: 1399.98px) {
    .title, .loading-progress-text {
        font-size: 3.5rem;
    }

    .loading-progress {
        width: 18rem;
        height: 18rem;
    }

    text {
        font-size: 22px;
        dominant-baseline: mathematical;
    }
    /* About, Contact, Skills - large desktop layouts (same as LG) */
    .about-container {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
            "header header"
            "profile cert"
            "exp educ";
    }

    .about-header {
        grid-area: header;
    }

    .about-profile {
        grid-area: profile;
    }

    .about-certifications {
        grid-area: cert;
    }

    .about-experience {
        grid-area: exp;
    }

    .about-education {
        grid-area: educ;
    }

    .contact-container {
        grid-template-columns: 1fr 2fr;
        grid-template-areas:
            "header header"
            "info form";
    }

    .contact-header {
        grid-area: header;
    }

    .contact-info {
        grid-area: info;
    }

    .contact-form {
        grid-area: form;
    }

    .skills-container {
        grid-template-columns: 1fr 2fr;
        grid-template-areas:
            "header header"
            "wheel explanation";
    }

    .skills-header {
        grid-area: header;
    }

    .skills-wheel-panel {
        grid-area: wheel;
    }

    .skills-explanation-panel {
        grid-area: explanation;
    }

    .skills-details-group {
        flex-direction: column;
    }

    /* About Page */
    .profile-img {
        margin-right: 2rem;
    }

    .personal-details {
        text-align: left;
    }
}

/* XXL: Extra large screens (≥1400px) */
@media (min-width: 1400px) {
    .title, .loading-progress-text {
        font-size: 4rem;
    }

    .loading-progress {
        width: 20rem;
        height: 20rem;
    }

    text {
        font-size: 24px;
        dominant-baseline: mathematical;
    }

    .about-container {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
            "header header"
            "profile cert"
            "exp educ";
    }

    .skills-container {
        grid-template-columns: 1fr 2fr;
        grid-template-areas:
            "header header"
            "wheel explanation";
    }

    .skills-details-group {
        flex-direction: column;
    }

    /* About Page */
    .profile-img {
        margin-right: 2rem;
    }

    .personal-details {
        text-align: left;
    }
}

/* === Skills panel/panel details for ≤md screens === */
@media (max-width: 991.98px) {
    .skills-wheel-panel,
    .skills-explanation-panel {
        max-width: 97vw;
        min-width: 0;
    }
    .skills-details-group {
        flex-direction: column-reverse;
    }

    .skills-nav-buttons {
        justify-content: center;
        border-bottom-width: 2px;
        padding-left: 0;
    }

    .navi {
        font-size: 1rem;
        padding: 0.45em 0.7em 0.28em 0.7em;
        margin-bottom: -2px;
        border-radius: 10px 10px 0 0;
    }
}

/* === Contact Form (global for all forms) === */
.contact-form {
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.2rem 0.7rem 0.7rem 0.7rem;
}

.contact-form-row {
    margin-bottom: 0.2rem;
}

.contact-form-group {
    flex: 1 1 140px;
    display: flex;
    flex-direction: column;
    margin-bottom: 0.3rem;
}

    .contact-form-group .label-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .contact-form-group label {
        margin-bottom: 0.25rem;
        color: var(--color-primary);
        font-weight: 600;
        letter-spacing: 0.05em;
        font-size: 0.98rem;
        margin-right: 0.5em;
    }

    .contact-form-group .validation-message {
        color: red;
        font-size: 0.9em;
        margin-left: auto;
    }

.contact-input {
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    border: 1.5px solid transparent;
    background: rgba(255,255,255,0.06);
    color: #f5f6fa;
    font-size: 0.98rem;
    font-family: inherit;
    transition: border 0.2s, box-shadow 0.2s;
    width: 100%;
    box-sizing: border-box;
}

    .contact-input:focus {
        border: 1.5px solid black;
        background: rgba(255,255,255,0.16);
        outline: none;
        box-shadow: 0 0 0 2px black;
    }

textarea.contact-input {
    min-height: 80px;
    resize: vertical;
}

.contact-form-actions {
    text-align: right;
    margin-top: 0.7rem;
}

.contact-send-btn {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main, 'Segoe UI', Arial, sans-serif);
    font-size: 1.1rem;
    border-radius: 28px;
    border: 2.5px solid var(--color-primary);
    padding: 0.7rem 2.2rem;
    margin: 0;
    text-align: center;
    text-transform: uppercase;
    font-weight: 700;
    display: inline-block;
    transition: background 0.18s, color 0.18s, box-shadow 0.18s, border-color 0.18s;
    cursor: pointer;
    user-select: none;
    box-shadow: 0 2px 12px 0 rgba(57,255,20,0.18);
    letter-spacing: 0.04em;
    outline: none;
}

    .contact-send-btn:hover, .contact-send-btn:focus {
        background-color: var(--color-btn-hover);
        color: var(--color-bg);
        outline: none;
        box-shadow: 0 0 0 2px var(--color-primary) inset;
    }

/* Responsive for contact form */
@media (min-width: 768px) {
    .contact-form-row {
        display: flex;
        gap: 0.7rem;
    }
}