From 50059bb3a5c7de03590b2a7e34e273d2638e26d0 Mon Sep 17 00:00:00 2001
From: Clezio Penha <clezio.penha@grupomateus.com>
Date: Mon, 8 Jun 2026 14:57:25 -0300
Subject: [PATCH] feat(ui): implement modern responsive dark theme

---
 css/style.css | 634 ++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 621 insertions(+), 13 deletions(-)

diff --git a/css/style.css b/css/style.css
index 05542f0..c219351 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1,21 +1,629 @@
+/* =========================
+   RESET
+========================= */
+
+*,
+*::before,
+*::after {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+html {
+    scroll-behavior: smooth;
+}
+
 body {
-font-family: Arial, sans-serif;
-max-width: 900px;
-margin: auto;
-padding: 20px;
-line-height: 1.6;
+
+    font-family: "Inter", sans-serif;
+
+     background:
+        radial-gradient(
+            circle at top,
+            rgba(59,130,246,.08),
+            transparent 45%
+        ),
+        var(--background);
+
+    color: var(--text-primary);
+
+    line-height: 1.7;
+
+    overflow-x: hidden;
+
+    transition:
+        background .3s ease,
+        color .3s ease;
 }
 
-header {
-text-align: center;
-margin-bottom: 40px;
+/* =========================
+   VARIABLES
+========================= */
+
+:root {
+    --background: #09090b;
+    --surface: #111827;
+    --surface-hover: #1f2937;
+    --border: #27272a;
+    --text-primary: #fafafa;
+    --text-secondary: #a1a1aa;
+    --accent: #3b82f6;
+    --accent-hover: #2563eb;
+    --container: 1200px;
 }
 
-h1 {
-margin-bottom: 0;
+[data-theme="light"] {
+
+    --background: #f8fafc;
+
+    --surface: #ffffff;
+
+    --surface-hover: #f1f5f9;
+
+    --border: #e2e8f0;
+
+    --text-primary: #0f172a;
+
+    --text-secondary: #475569;
+
+    --accent: #2563eb;
+
+    --accent-hover: #1d4ed8;
+
 }
 
-h2 {
-border-bottom: 1px solid #ddd;
-padding-bottom: 5px;
+/* =========================
+   GLOBAL
+========================= */
+
+main {
+    width: 100%;
 }
+
+.section {
+    max-width: var(--container);
+    margin: 0 auto;
+    padding: 120px 24px;
+}
+
+.section h2 {
+    font-size: 2.4rem;
+    margin-bottom: 24px;
+    font-weight: 700;
+}
+
+.section p {
+    color: var(--text-secondary);
+    max-width: 800px;
+}
+
+/* =========================
+   HEADER
+========================= */
+
+.header {
+    position: fixed;
+    top: 0;
+    width: 100%;
+    z-index: 1000;
+    backdrop-filter: blur(18px);
+    background: rgba(9, 9, 11, 0.75);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+}
+
+.navbar {
+    max-width: var(--container);
+    margin: auto;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 18px 24px;
+}
+
+.logo {
+    font-weight: 700;
+    font-size: 1.1rem;
+}
+
+.nav-links {
+    display: flex;
+    gap: 28px;
+    list-style: none;
+}
+
+.nav-links a {
+    text-decoration: none;
+    color: var(--text-secondary);
+    transition: 0.3s ease;
+}
+
+.nav-links a:hover {
+    color: var(--text-primary);
+}
+
+.language-switcher {
+    display: flex;
+    gap: 10px;
+}
+
+.language-switcher button {
+    background: transparent;
+    border: none;
+    cursor: pointer;
+    font-size: 1.1rem;
+}
+
+/* =========================
+   HERO
+========================= */
+
+.hero {
+    min-height: 85vh;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 120px 24px 60px;
+}
+
+.hero-content {
+    max-width: 900px;
+    text-align: center;
+}
+
+.hero-badge {
+    display: inline-block;
+
+    margin-bottom: 24px;
+
+    padding: 8px 16px;
+
+    border: 1px solid var(--border);
+    border-radius: 999px;
+
+    background: color-mix(in srgb,
+            var(--surface) 80%,
+            transparent);
+
+    color: var(--text-secondary);
+
+    font-size: 0.9rem;
+}
+
+.hero h1 {
+    font-size: clamp(2.8rem, 6vw, 4.8rem);
+
+    background: linear-gradient(180deg,
+            #ffffff 0%,
+            #dbeafe 100%);
+
+    -webkit-background-clip: text;
+
+    -webkit-text-fill-color: transparent;
+
+    max-width: 1000px;
+
+    line-height: 1.1;
+
+    margin: 0 auto 28px;
+
+    font-weight: 800;
+
+    letter-spacing: -2px;
+}
+
+.hero p {
+    color: var(--text-secondary);
+
+    font-size: 1.2rem;
+
+    max-width: 700px;
+
+    margin: auto;
+}
+
+.hero-actions {
+    margin-top: 40px;
+
+    display: flex;
+    justify-content: center;
+    gap: 16px;
+
+    flex-wrap: wrap;
+}
+
+/* =========================
+   BUTTONS
+========================= */
+
+.btn-primary,
+.btn-secondary {
+    text-decoration: none;
+
+    padding: 14px 26px;
+
+    border-radius: 12px;
+
+    transition: 0.3s ease;
+}
+
+.btn-primary {
+    background: var(--accent);
+    color: white;
+}
+
+.btn-primary:hover {
+    background: var(--accent-hover);
+    transform: translateY(-2px);
+}
+
+.btn-secondary {
+    border: 1px solid var(--border);
+    color: var(--text-primary);
+}
+
+.btn-secondary:hover {
+    background: rgba(255, 255, 255, 0.05);
+}
+
+/* =========================
+   METRICS
+========================= */
+
+.metrics {
+    max-width: var(--container);
+
+    margin: auto;
+
+    display: grid;
+    grid-template-columns: repeat(4, 1fr);
+
+    gap: 24px;
+
+    padding: 0 24px 120px;
+}
+
+.metric-card {
+    background: var(--surface);
+
+    border: 1px solid var(--border);
+
+    padding: 32px;
+
+    border-radius: 20px;
+
+    text-align: center;
+}
+
+.metric-card h3 {
+    font-size: 2rem;
+    margin-bottom: 12px;
+}
+
+.metric-card p {
+    color: var(--text-secondary);
+}
+
+/* =========================
+   GRID CARDS
+========================= */
+
+.cards-grid {
+    display: grid;
+
+    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
+
+    gap: 24px;
+
+    margin-top: 40px;
+}
+
+.card,
+.project-card {
+    background: var(--surface);
+
+    border: 1px solid var(--border);
+
+    border-radius: 20px;
+
+    padding: 28px;
+
+    transition: all .3s ease;
+}
+
+.card:hover,
+.project-card:hover {
+    transform: translateY(-6px);
+
+    border-color: rgba(59, 130, 246, .35);
+
+    background: var(--surface-hover);
+}
+
+.card h3,
+.project-card h3 {
+    margin-bottom: 12px;
+}
+
+.card p,
+.project-card p {
+    color: var(--text-secondary);
+}
+
+/* =========================
+   TECH STACK
+========================= */
+
+.tech-stack {
+    display: flex;
+    flex-wrap: wrap;
+
+    gap: 14px;
+
+    margin-top: 40px;
+}
+
+.tech-stack span {
+    padding: 10px 18px;
+
+    background: var(--surface);
+
+    border: 1px solid var(--border);
+
+    border-radius: 999px;
+
+    color: var(--text-secondary);
+}
+
+/* =========================
+   TIMELINE
+========================= */
+
+.timeline {
+    margin-top: 40px;
+
+    border-left: 2px solid var(--border);
+
+    padding-left: 32px;
+}
+
+.timeline-item {
+    position: relative;
+
+    margin-bottom: 50px;
+}
+
+.timeline-item::before {
+    content: "";
+
+    position: absolute;
+
+    left: -41px;
+    top: 8px;
+
+    width: 14px;
+    height: 14px;
+
+    border-radius: 50%;
+
+    background: var(--accent);
+}
+
+.timeline-item h3 {
+    margin-bottom: 10px;
+}
+
+.timeline-item p {
+    color: var(--text-secondary);
+}
+
+/* =========================
+   CONTACT
+========================= */
+
+.contact-links {
+    display: flex;
+    gap: 20px;
+
+    margin-top: 30px;
+
+    flex-wrap: wrap;
+}
+
+.contact-links a {
+    text-decoration: none;
+
+    color: var(--accent);
+
+    transition: 0.3s ease;
+}
+
+.contact-links a:hover {
+    color: white;
+}
+
+/* =========================
+   FOOTER
+========================= */
+
+.footer {
+    border-top: 1px solid var(--border);
+
+    text-align: center;
+
+    padding: 50px 24px;
+
+    color: var(--text-secondary);
+}
+
+.footer p:first-child {
+    margin-bottom: 10px;
+}
+
+/* ========================= BACK TO TOP ========================= */
+#backToTop {
+    position: fixed;
+    bottom: 30px;
+    right: 30px;
+    width: 50px;
+    height: 50px;
+    border: none;
+    border-radius: 50%;
+    background: #3b82f6;
+    color: white;
+    font-size: 20px;
+    cursor: pointer;
+    opacity: 0;
+    visibility: hidden;
+    transition: all 0.3s ease;
+    z-index: 999;
+}
+
+#backToTop:hover {
+    transform: translateY(-3px);
+}
+
+#backToTop.show {
+    opacity: 1;
+    visibility: visible;
+}
+
+/* ========================= SECTION ANIMATION ========================= */
+.section,
+.metric-card,
+.project-card,
+.card {
+    opacity: 0;
+    transform: translateY(30px);
+    transition: all 0.7s ease;
+}
+
+.show-element {
+    opacity: 1 !important;
+    transform: translateY(0) !important;
+}
+
+/* ========================= ACTIVE NAV ========================= */
+.nav-links a.active {
+    color: #ffffff;
+}
+
+.nav-links a.active::after {
+    content: "";
+    display: block;
+    margin-top: 6px;
+    width: 100%;
+    height: 2px;
+    background: #3b82f6;
+}
+
+/* =========================
+   THEME BUTTON
+========================= */
+
+.controls {
+
+    display: flex;
+
+    align-items: center;
+
+    gap: 16px;
+}
+
+#theme-toggle {
+
+    border: none;
+
+    background: transparent;
+
+    color: var(--text-primary);
+
+    cursor: pointer;
+
+    font-size: 1.2rem;
+
+    transition: .3s ease;
+}
+
+#theme-toggle:hover {
+
+    transform: rotate(20deg);
+}
+
+/* =========================
+   RESPONSIVE
+========================= */
+
+@media (max-width: 960px) {
+
+    .metrics {
+        grid-template-columns: repeat(2, 1fr);
+    }
+
+    .nav-links {
+        display: none;
+    }
+
+    .hero h1 {
+        font-size: 3rem;
+    }
+
+    .section {
+        padding: 90px 24px;
+    }
+}
+
+@media (max-width: 640px) {
+
+    .metrics {
+        grid-template-columns: 1fr;
+    }
+
+    .hero {
+        text-align: center;
+    }
+
+    .hero h1 {
+        font-size: 2.4rem;
+    }
+
+    .hero p {
+        font-size: 1rem;
+    }
+
+    .section h2 {
+        font-size: 2rem;
+    }
+}
+
+.language-switcher button.active {
+    transform: scale(1.15);
+}
+
+.language-switcher button {
+    transition: all 0.3s ease;
+}
+
+.menu-toggle {
+    display: none;
+    background: transparent;
+    border: none;
+    color: #fff;
+    font-size: 1.5rem;
+    cursor: pointer;
+}
+
+.card:hover,
+.project-card:hover {
+    transform: translateY(-6px) scale(1.02);
+}
+
+@media (max-width:960px) {
+    .menu-toggle {
+        display: block;
+    }
+
+    .nav-links.open {
+        display: flex !important;
+    }
+}
\ No newline at end of file