/* ===== Design Tokens (GigaDevOps) ===== */
:root {
    --color-primary: #6A6EF6;
    --color-primary-hover: #5558d4;
    --color-navy: #242443;
    --color-yellow: #FFF705;
    --color-yellow-soft: #FFFC99;
    --color-green: #BFFF05;
    --color-bg: #F7F7FF;
    --color-bg-accent: #DEDEFF;
    --color-card: #FFFFFF;
    --color-text: #242443;
    --color-text-muted: #7C7C8E;
    --color-heading: #171717;
    --color-border: #E5E7EB;

    --radius-pill: 50px;
    --radius-card: 20px;
    --radius-badge: 12px;
    --radius-secondary: 30px;

    --shadow-card: rgb(235, 235, 235) 2px 2px 10px 0px;
    --shadow-nav: rgba(0, 0, 0, 0.2) 0px 1px 20px 0px;

    --font: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;

    --transition-fast: 0.2s ease-in-out;
    --transition-appear: 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

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

/* ===== Base ===== */
html {
    scroll-behavior: smooth;
    min-height: 100%;
}

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.main {
    flex: 1;
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 990;
    background: transparent;
    height: 80px;
    pointer-events: none;
}

.header__inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 80px;
    pointer-events: auto;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    text-decoration: none;
    justify-self: start;
}

.header__logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--color-primary);
    padding: 6px;
    object-fit: contain;
}

.header__logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-navy);
}

/* Nav pill menu */
.header__nav {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    padding: 6px 8px;
    box-shadow: rgba(0, 0, 0, 0.04) 0px 1px 4px 0px;
}

.header__nav-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 400;
    color: var(--color-primary);
    text-decoration: none;
    white-space: nowrap;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.header__nav-item:hover {
    background: var(--color-bg);
}

.header__nav-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* CTA button */
.btn--cta {
    background: var(--color-primary);
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-pill);
    white-space: nowrap;
    flex-shrink: 0;
}

.btn--cta:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(106, 110, 246, 0.3);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    font-family: var(--font);
    font-weight: 600;
    text-decoration: none;
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                transform var(--transition-fast),
                box-shadow var(--transition-fast);
}

.btn--nav {
    background: var(--color-primary);
    color: #FFFFFF;
    font-size: 14px;
    padding: 10px 24px;
    border-radius: var(--radius-pill);
}

.btn--nav:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn--primary {
    background: var(--color-primary);
    color: #FFFFFF;
    font-size: 16px;
    padding: 14px 36px;
    border-radius: var(--radius-pill);
}

.btn--primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(106, 110, 246, 0.3);
}

.btn--secondary {
    background: var(--color-navy);
    color: #FFFFFF;
    font-size: 18px;
    font-weight: 700;
    padding: 16px 40px;
    border-radius: var(--radius-secondary);
}

.btn--secondary:hover {
    background: #1a1a35;
    transform: translateY(-2px);
}

/* ===== Hero ===== */
.hero {
    padding: 148px 0 40px;
    text-align: center;
    position: relative;
    overflow: visible;
}

.hero__glow {
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(106, 110, 246, 0.15) 0%, rgba(255, 247, 5, 0) 68%);
    pointer-events: none;
    z-index: 0;
}

.hero__title {
    font-size: 38px;
    font-weight: 600;
    color: var(--color-navy);
    line-height: 42px;
    position: relative;
    z-index: 1;
    margin-bottom: 20px;
}

.hero__highlight {
    position: relative;
    display: inline-block;
}

.hero__underline {
    position: absolute;
    bottom: -25px;
    left: 0;
    width: 100%;
    height: auto;
    pointer-events: none;
}

.hero__subtitle {
    font-size: 18px;
    font-weight: 300;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    line-height: 1.6;
}

/* ===== Sections ===== */
.section {
    padding: 24px 0;
}

.section__title {
    font-size: 34px;
    font-weight: 600;
    color: var(--color-heading);
    text-align: center;
    margin-bottom: 32px;
    line-height: 37px;
}

/* ===== Card ===== */
.card {
    background: var(--color-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 32px;
}

/* ===== Upload Card ===== */
.upload-card {
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Drop Zone ===== */
.drop-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-card);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast),
                background var(--transition-fast);
}

.drop-zone:hover,
.drop-zone--active {
    border-color: var(--color-primary);
    background: rgba(106, 110, 246, 0.04);
}

.drop-zone__icon {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
}

.drop-zone__title {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-navy);
    margin-bottom: 8px;
}

.drop-zone__or {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.drop-zone__btn {
    margin-bottom: 16px;
    pointer-events: none;
}

.drop-zone__hint {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 300;
}

/* ===== File Info ===== */
.file-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--color-bg);
    border-radius: var(--radius-badge);
}

.file-info__name {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-navy);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-info__remove {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color var(--transition-fast);
}

.file-info__remove:hover {
    color: #ef4444;
}

/* ===== Error ===== */
.error-msg {
    margin-top: 16px;
    padding: 12px 16px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-badge);
    color: #dc2626;
    font-size: 14px;
    text-align: center;
}

/* ===== Loading ===== */
.loading-card {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
    padding: 48px 32px;
}

.loading__spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-bg-accent);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto 24px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading__text {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-navy);
    margin-bottom: 24px;
}

.loading__dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%   { content: ''; }
    25%  { content: '.'; }
    50%  { content: '..'; }
    75%  { content: '...'; }
    100% { content: ''; }
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--color-bg-accent);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 16px;
}

.progress-bar__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), #8b8fff);
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

.loading__file-name {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 300;
}

/* ===== Results Grid ===== */
.results-grid {
    display: grid;
    gap: 20px;
    margin-bottom: 20px;
}

.results-grid--two {
    grid-template-columns: 1fr 1fr;
}

/* ===== Result Card ===== */
.result-card {
    margin-bottom: 20px;
}

.results-grid .result-card {
    margin-bottom: 0;
}

.result-card__label {
    font-size: 14px;
    font-weight: 300;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.result-card__value {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-navy);
    line-height: 1.2;
    margin-bottom: 8px;
}

.result-card__value--accent {
    color: var(--color-primary);
    font-size: 36px;
    letter-spacing: -1px;
}

.result-card__sub {
    font-size: 15px;
    color: var(--color-text-muted);
    font-weight: 300;
}

/* ===== Badge ===== */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-badge);
    font-size: 14px;
    font-weight: 600;
    line-height: 22px;
}

.badge--green {
    background: var(--color-green);
    color: var(--color-navy);
}

.badge--primary {
    background: rgba(106, 110, 246, 0.1);
    color: var(--color-primary);
}

/* ===== Skills ===== */
.skills-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-category {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-category__name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-navy);
}

.skill-category__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-bg);
    border-radius: var(--radius-badge);
    font-size: 14px;
    color: var(--color-navy);
    font-weight: 400;
    transition: background var(--transition-fast),
                transform var(--transition-fast);
}

.skill-tag:hover {
    background: var(--color-bg-accent);
    transform: translateY(-1px);
}

/* Category color accents */
.skill-tag--cloud { border-left: 3px solid #6A6EF6; }
.skill-tag--containers { border-left: 3px solid #3b82f6; }
.skill-tag--cicd { border-left: 3px solid #10b981; }
.skill-tag--monitoring { border-left: 3px solid #f59e0b; }
.skill-tag--iac { border-left: 3px solid #8b5cf6; }
.skill-tag--scripting { border-left: 3px solid #ec4899; }
.skill-tag--networking { border-left: 3px solid #ef4444; }
.skill-tag--databases { border-left: 3px solid #14b8a6; }
.skill-tag--vcs { border-left: 3px solid #64748b; }
.skill-tag--os { border-left: 3px solid #78716c; }

/* ===== Result Lists ===== */
.result-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.result-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-text);
}

.result-list li::before {
    content: '';
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 7px;
    background: var(--color-primary);
}

.result-list--green li::before {
    background: var(--color-green);
}

.result-list--yellow li::before {
    background: var(--color-yellow);
}

.result-list--recs li::before {
    background: var(--color-primary);
    width: 6px;
    height: 6px;
    border: 2px solid rgba(106, 110, 246, 0.3);
    margin-top: 6px;
}

/* ===== Reset Button ===== */
.reset-wrapper {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 40px;
}

/* ===== Mobile Bottom Nav ===== */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 990;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(106, 110, 246, 0.1);
    padding: 8px 0;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
    justify-content: space-around;
    align-items: center;
}

.mobile-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 12px;
    transition: background var(--transition-fast);
}

.mobile-nav__item:active {
    background: rgba(106, 110, 246, 0.08);
}

.mobile-nav__icon {
    width: 24px;
    height: 24px;
}

.mobile-nav__label {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-primary);
    white-space: nowrap;
}

/* ===== Footer ===== */
.footer {
    margin-top: auto;
    background: var(--color-navy);
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.footer__logo-icon {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    background: var(--color-primary);
    padding: 4px;
    object-fit: contain;
}

.footer__logo-text {
    font-size: 15px;
    font-weight: 600;
    color: #FFFFFF;
}

.footer__legal {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 300;
    text-align: center;
}

.footer__link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 400;
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: #8b8fff;
    text-decoration: underline;
}

.footer__social {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: transparent;
    transition: opacity var(--transition-fast);
}

.footer__social:hover {
    opacity: 0.7;
}

.footer__social-icon {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    animation: fadeInUp var(--transition-appear) forwards;
}

.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }
.fade-in-delay-4 { animation-delay: 0.4s; }
.fade-in-delay-5 { animation-delay: 0.5s; }

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .header__nav {
        display: none;
    }

    .header__inner {
        display: flex;
        justify-content: center;
    }

    .mobile-nav {
        display: flex;
    }

    body {
        padding-bottom: 72px;
    }

    .hero {
        padding: 100px 0 24px;
    }

    #upload-section {
        display: flex;
        align-items: center;
        flex: 1;
    }

    #upload-section > .container {
        width: 100%;
    }

    .main {
        display: flex;
        flex-direction: column;
    }

    .upload-card {
        max-width: 100%;
    }

    .drop-zone {
        padding: 64px 40px;
    }

    .drop-zone__icon svg {
        width: 64px;
        height: 64px;
    }

    .drop-zone__title {
        font-size: 22px;
    }

    .drop-zone__or {
        font-size: 16px;
    }

    .drop-zone__btn {
        font-size: 18px;
        padding: 16px 44px;
    }

    .drop-zone__hint {
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    .hero__title {
        font-size: 28px;
        line-height: 36px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .hero {
        padding: 100px 0 16px;
    }

    .hero__glow {
        width: 360px;
        height: 360px;
        top: -60px;
    }

    .results-grid--two {
        grid-template-columns: 1fr;
    }

    .result-card__value--accent {
        font-size: 28px;
    }

    .section__title {
        font-size: 26px;
        line-height: 32px;
    }

    .card {
        padding: 24px;
    }

    .drop-zone {
        padding: 32px 16px;
    }

    .section {
        padding: 16px 0;
    }

    .reset-wrapper {
        margin-top: 24px;
        margin-bottom: 24px;
    }

    .btn--secondary {
        font-size: 16px;
        padding: 14px 32px;
    }

    .footer__inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer__legal {
        font-size: 12px;
        line-height: 1.6;
    }

    .loading-card {
        padding: 32px 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 90px 0 12px;
    }

    .hero__title {
        font-size: 24px;
        line-height: 32px;
    }

    .hero__subtitle {
        font-size: 15px;
        line-height: 1.5;
    }

    .hero__underline {
        bottom: -18px;
    }

    .header__logo-text {
        font-size: 16px;
    }

    .card {
        padding: 20px;
        border-radius: 16px;
    }

    .drop-zone {
        padding: 28px 12px;
    }

    .drop-zone__title {
        font-size: 16px;
    }

    .drop-zone__btn {
        font-size: 14px;
        padding: 12px 28px;
    }

    .result-card__value {
        font-size: 24px;
    }

    .result-card__value--accent {
        font-size: 24px;
    }

    .result-card__sub {
        font-size: 14px;
    }

    .result-card__label {
        font-size: 13px;
    }

    .result-list li {
        font-size: 14px;
    }

    .skill-tag {
        font-size: 13px;
        padding: 5px 10px;
    }

    .btn--secondary {
        font-size: 15px;
        padding: 12px 24px;
        width: 100%;
    }

    .footer {
        padding: 16px 0;
    }

    .footer__logo-icon {
        width: 24px;
        height: 24px;
    }

    .footer__logo-text {
        font-size: 14px;
    }

    .footer__legal {
        font-size: 11px;
    }

    .footer__social {
        width: 32px;
        height: 32px;
    }

    .footer__social-icon {
        width: 18px;
        height: 18px;
    }
}