/* ======================================
   MELHORIAS VISUAIS — ENHANCEMENTS
   ====================================== */

/* ======================================
   CUSTOM SCROLLBAR
   ====================================== */
::-webkit-scrollbar {
    width: 5px;
}
::-webkit-scrollbar-track {
    background: var(--primary-bg-color);
}
::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* ======================================
   LOADING SCREEN
   ====================================== */
.loading-screen {
    position: fixed;
    inset: 0;
    background: #0e0e12;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    gap: 1.5rem;
    transition: opacity 0.7s ease, visibility 0.7s ease;
}

.loading-screen.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-screen__initials {
    font-size: 3.5rem;
    font-weight: 700;
    font-family: 'Segoe UI', sans-serif;
    letter-spacing: 0.3em;
    color: #fff;
    animation: loading-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.loading-screen__initials span {
    color: #A855F7;
}

@keyframes loading-pop {
    from { opacity: 0; transform: scale(0.7); }
    to   { opacity: 1; transform: scale(1); }
}

.loading-screen__bar {
    width: 180px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.loading-screen__bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #A855F7, #EC4899);
    border-radius: 2px;
    animation: loading-bar 1.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes loading-bar {
    0%   { width: 0; }
    60%  { width: 80%; }
    100% { width: 100%; }
}

.loading-screen__tagline {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* ======================================
   HERO BADGE
   ====================================== */
.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: var(--accent-glow);
    border: 1px solid var(--accent-color);
    border-radius: 100px;
    font-size: 0.72rem;
    font-family: 'Roboto Mono', monospace;
    letter-spacing: 0.1em;
    color: var(--accent-color);
    text-transform: uppercase;
    width: fit-content;
    animation: badge-glow 3s ease-in-out infinite;
}

.hero__badge::before {
    content: '';
    width: 7px;
    height: 7px;
    background: var(--accent-color);
    border-radius: 50%;
    flex-shrink: 0;
    animation: dot-pulse 1.5s ease-in-out infinite;
}

@keyframes badge-glow {
    0%, 100% { box-shadow: 0 0 0px 0px var(--accent-glow); }
    50%       { box-shadow: 0 0 14px 3px var(--accent-glow); }
}

@keyframes dot-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.3; transform: scale(0.8); }
}

/* ======================================
   HERO ROLE ROTATOR
   ====================================== */
.hero__roles {
    font-family: 'Roboto Mono', monospace;
    font-size: clamp(0.85rem, 1.6vw, 1.05rem);
    color: var(--accent-color);
    letter-spacing: 0.06em;
    min-height: 1.6em;
    padding-left: 1rem;
}

.hero__roles #roleText::after {
    content: '_';
    animation: cursor-blink 0.8s step-end infinite;
}

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

/* ======================================
   SECTION REVEAL ANIMATIONS
   ====================================== */
.reveal {
    opacity: 0;
    transform: translateY(48px);
    transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal--left {
    transform: translateX(-48px);
}
.reveal--right {
    transform: translateX(48px);
}
.reveal--left.revealed,
.reveal--right.revealed {
    transform: translateX(0);
    opacity: 1;
}

/* ======================================
   HEADER STICKY (MOBILE) + GLASSMORPHISM
   ====================================== */

/* Mobile only — sticky so it stays in flow */
@media (max-width: 749px) {
    .header {
        position: sticky;
        top: 0;
        z-index: 1000;
    }
}

.header {
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

.header--scrolled {
    background: var(--header-bg) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
    border-bottom: 1px solid var(--accent-glow) !important;
}

/* ======================================
   ACCENT ON ACTIVE MENU LINK
   ====================================== */
.menu__link.active .menu__text {
    color: var(--accent-color);
}

.menu--principal .menu__link.active {
    border-bottom: 2px solid var(--accent-color);
}

/* ======================================
   PRIMARY BUTTON — ACCENT
   ====================================== */
[data-theme="dark"] .btn--primary {
    border-color: var(--accent-color);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .btn--primary span,
[data-theme="dark"] .btn--primary i {
    color: var(--accent-color);
    position: relative;
    z-index: 1;
}

[data-theme="dark"] .btn--primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-glow);
    opacity: 0;
    transition: opacity 0.3s ease;
}

[data-theme="dark"] .btn--primary:hover::before {
    opacity: 1;
}

[data-theme="dark"] .btn--primary:hover {
    box-shadow: 0 0 20px var(--accent-glow);
    transform: scale(1.06);
}

/* ======================================
   SECTION HEADING — ACCENT UNDERLINE
   ====================================== */
section h2,
main h1 {
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 56px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    margin: 0.6rem auto 0;
    border-radius: 2px;
}

/* ======================================
   PROJECT CARD — ACCENT HOVER
   ====================================== */
[data-theme="dark"] .projects__card {
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

[data-theme="dark"] .projects__card:hover {
    transform: translateY(-6px);
    box-shadow: 0 0 0 1px var(--accent-color), 0 16px 40px var(--accent-glow);
    border-color: var(--accent-color);
}

/* ======================================
   CONTACT CARD — ACCENT HOVER (DARK)
   ====================================== */
[data-theme="dark"] .contact__card {
    transition: all 0.35s ease;
}

[data-theme="dark"] .contact__card:hover {
    background: rgba(0, 200, 255, 0.07);
    border-color: var(--accent-color);
    color: var(--accent-color);
    box-shadow: 0 0 24px var(--accent-glow);
    transform: translateY(-6px);
}

[data-theme="dark"] .contact__card:hover .contact__icon,
[data-theme="dark"] .contact__card:hover .contact__title,
[data-theme="dark"] .contact__card:hover .contact__text {
    color: var(--accent-color);
}

/* ======================================
   ABOUT ITEMS — ACCENT BORDER (DARK)
   ====================================== */
[data-theme="dark"] .about__item {
    border-left-color: var(--accent-color);
    border-left-width: 3px;
}

[data-theme="dark"] .about__item-institution {
    color: var(--accent-color);
}

[data-theme="dark"] .about__item:hover {
    border-left-color: var(--accent-color);
    box-shadow: -4px 0 20px var(--accent-glow), 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* ======================================
   SKILLS ITEM — ACCENT HOVER
   ====================================== */
[data-theme="dark"] .skills__item:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 12px var(--accent-glow);
    transform: scale(1.12);
}

/* ======================================
   BACK TO TOP — ACCENT STYLE
   ====================================== */
.back-to-top {
    background: var(--accent-color) !important;
    color: #000 !important;
    border-color: var(--accent-color) !important;
    font-weight: 700;
    box-shadow: 0 4px 18px var(--accent-glow);
    transition: opacity 0.3s ease,
                visibility 0.3s ease,
                transform 0.3s ease,
                box-shadow 0.3s ease !important;
}

.back-to-top:hover {
    transform: translateY(-4px) !important;
    box-shadow: 0 8px 28px var(--accent-glow) !important;
}

/* ======================================
   SKILLS LABEL (text under icon)
   ====================================== */
.skills__item {
    flex-direction: column;
    width: 5.5rem;
    height: auto;
    padding: 0.75rem 0.5rem;
    gap: 0.4rem;
}

.skills__label {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.62rem;
    color: var(--text-color);
    text-align: center;
    letter-spacing: 0.04em;
    white-space: nowrap;
    opacity: 0.75;
}

/* ======================================
   ABOUT PHOTO — ACCENT RING (DARK)
   ====================================== */
[data-theme="dark"] .about__photo-img {
    border-color: var(--accent-color);
    box-shadow: 0 0 32px var(--accent-glow);
}

/* ======================================
   FOOTER UPGRADE
   ====================================== */
footer {
    border-top: 1px solid var(--primary-border-color);
}

[data-theme="dark"] footer {
    border-top: 1px solid rgba(0, 200, 255, 0.15);
}

/* ======================================
   HERO SECTION — SUBTLE GRID BG
   ====================================== */
[data-theme="dark"] main {
    background-image:
        linear-gradient(rgba(0, 200, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 200, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    background-position: -1px -1px;
}

/* ======================================
   MOBILE NAV ACCENT
   ====================================== */
.menu--mobile .menu__link.active .menu__text,
.menu--mobile .menu__link.active .menu__icon {
    color: var(--accent-color) !important;
}