/* ---------- PAGE BACKGROUND & DARK MODE ---------- */
html, body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
    background: #f7f9fb;
    color: #222e3a;
    min-height: 100vh;
    transition: background 0.5s;
}
html.dark-mode, body.dark-mode {
    background: radial-gradient(ellipse at top left, #232a32 0%, #181a20 100%);
    color: #e7eaf3;
}

/* ---------- HEADER ---------- */
.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 2.5rem 1rem 2.5rem;
    background: #fff;
    box-shadow: 0 2px 20px rgba(66,133,244,0.06);
    border-bottom: 1px solid #e7eaf3;
    position: relative;
    z-index: 10;
    transition: background 0.4s, box-shadow 0.4s;
}
html.dark-mode .main-header {
    background: #232a32;
    box-shadow: 0 2px 20px #60a5fa14;
    border-bottom: 1px solid #293144;
}
.header-left {
    flex: 0 0 48px;
    display: flex;
    align-items: center;
}
.tool-logo img {
    width: 38px;
    height: 38px;
    object-fit: contain;
    border-radius: 12px;
    background: #e3f0ff;
    box-shadow: 0 2px 8px rgba(66,133,244,0.10);
}
.header-center {
    flex: 1 1 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}
.header-title {
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: 1.2px;
    margin: 0;
    color: #4285f4;
    text-shadow: 0 0 12px #60a5fa55;
}
html.dark-mode .header-title {
    color: #60a5fa;
    text-shadow: 0 0 24px #60a5fa, 0 0 4px #0ffca7;
}

/* ---------- MENU ---------- */
.menu-nav {
    margin-top: 0.15rem;
}
.menu-nav ul {
    display: flex;
    gap: 1.7rem;
    justify-content: center;
    padding: 0;
    margin: 0;
    list-style: none;
}
.menu-nav li {
    display: flex;
}
.menu-link {
    font-size: 1.09rem;
    color: #4285f4;
    font-weight: 600;
    padding: 0.4em 1.2em;
    border-radius: 10px;
    background: none;
    transition: background 0.15s, color 0.15s, box-shadow 0.3s;
    text-decoration: none;
    position: relative;
    cursor: pointer;
    outline: none;
    border: 2px solid transparent;
}
.menu-link.active,
.menu-link:hover,
.menu-link:focus {
    background: #e3f0ff;
    color: #2059c5;
    box-shadow: 0 0 12px #60a5fa99;
    border-color: #34a853;
    animation: menuGlow 1.2s infinite alternate;
}
.menu-link.active::after {
    content: '';
    display: block;
    position: absolute;
    left: 50%; bottom: -7px;
    transform: translateX(-50%);
    width: 50%;
    height: 3px;
    border-radius: 2px;
    background: #4285f4;
    box-shadow: 0 0 8px #60a5fa99;
    animation: underlineGlow 1.5s infinite alternate;
}
@keyframes menuGlow {
    0% { box-shadow: 0 0 10px #60a5fa44; }
    100% { box-shadow: 0 0 18px 3px #60a5fa99; }
}
@keyframes underlineGlow {
    0% { box-shadow: 0 0 8px #60a5fa99; }
    100% { box-shadow: 0 0 16px #0ffca7cc; }
}
html.dark-mode .menu-link {
    color: #0ffca7;
    background: none;
}
html.dark-mode .menu-link.active,
html.dark-mode .menu-link:hover,
html.dark-mode .menu-link:focus {
    background: #293144;
    color: #60a5fa;
    border-color: #60a5fa;
    box-shadow: 0 0 24px #60a5fa88;
}
html.dark-mode .menu-link.active::after {
    background: #0ffca7;
    box-shadow: 0 0 16px #0ffca7cc;
}

/* ---------- DARK MODE TOGGLE ---------- */
.header-right {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.dark-mode-toggle {
    background: #232a32;
    color: #e7eaf3;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    width: 38px;
    height: 38px;
    cursor: pointer;
    margin-left: 0.65rem;
    box-shadow: 0 0 16px #60a5fa99, 0 2px 8px #60a5fa42;
    transition: background 0.13s, transform 0.13s, box-shadow 0.13s;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: buttonGlow 1.6s infinite alternate;
    outline: none;
    border: 2px solid #60a5fa44;
}
.dark-mode-toggle:active {
    background: #4285f4;
    color: #fff;
    transform: scale(0.94);
    box-shadow: 0 2px 8px #4285f4b0;
}
@keyframes buttonGlow {
    0% { box-shadow: 0 0 8px #0ffca777, 0 2px 8px #34a85344; }
    100% { box-shadow: 0 0 24px #60a5fa99, 0 2px 16px #0ffca7cc; }
}
html.dark-mode .dark-mode-toggle {
    background: #181a20;
    color: #60a5fa;
    border-color: #0ffca7;
}

/* ---------- MAIN BODY LAYOUT ---------- */
.main-body {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2.5rem 0 2rem 0;
    max-width: 1200px;
    margin: 0 auto;
    min-height: calc(100vh - 130px);
}
html.dark-mode .main-body {
    background: none;
}

/* Center Content */
.center-content {
    flex: 1 1 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-width: 300px;
    max-width: 450px;
    margin: 0 auto;
}

/* ---------- STYLISH TITLE & ANIMATION ---------- */
.website-title {
    font-family: 'Bebas Neue', 'Poppins', Arial, sans-serif;
    font-size: 2.7rem;
    font-weight: 900;
    color: #2059c5;
    margin-top: 0.25em;
    letter-spacing: 2px;
    margin-bottom: 0.09em;
    text-shadow: 0 0 14px #60a5fa44, 0 0 2px #34a853;
    background: linear-gradient(90deg, #60a5fa, #34a853, #0ffca7, #4285f4);
    background-size: 400% 400%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientTitleAnim 4s ease-in-out infinite;
}
@keyframes gradientTitleAnim {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
html.dark-mode .website-title {
    color: #60a5fa;
    text-shadow: 0 0 24px #60a5fa, 0 0 6px #0ffca7;
    background: linear-gradient(90deg, #0ffca7, #60a5fa, #2059c5, #34a853);
    animation: gradientTitleAnim 4s ease-in-out infinite;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ---------- ATTRACTIVE DESCRIPTION ---------- */
.website-description {
    font-family: 'Roboto Slab', 'Poppins', Arial, sans-serif;
    font-size: 1.35rem;
    color: #5070a6;
    margin-bottom: 1.1em;
    font-weight: 500;
    max-width: 92%;
    letter-spacing: 1px;
    text-shadow: 0 0 8px #60a5fa22;
    position: relative;
    animation: fadeInDesc 2s;
}
@keyframes fadeInDesc {
    0% { opacity: 0; transform: translateY(24px);}
    100% { opacity: 1; transform: translateY(0);}
}
html.dark-mode .website-description {
    color: #0ffca7;
    text-shadow: 0 0 8px #0ffca7ee;
}

/* ---------- ACHIEVEMENT + GOAL CARD ---------- */
.achievement-goal-card {
    width: 100%;
    max-width: 420px;
    margin: 0 auto 2.3rem auto;
    background: #fff;
    border-radius: 30px;
    box-shadow: 0 8px 40px #4285f445, 0 2px 8px #e3f0ff;
    border: 2px solid #e3f0ff;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInUp 1.6s cubic-bezier(.68,-0.55,.27,1.55) both;
}
@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(40px);}
    100% { opacity: 1; transform: translateY(0);}
}
html.dark-mode .achievement-goal-card {
    background: #232a32;
    box-shadow: 0 0 32px #0ffca7cc, 0 8px 32px #60a5fa;
    border: 2px solid #0ffca7cc;
}

/* Card Row */
.achievement-goal-row {
    width: 100%;
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    padding: 1.2rem 1.2rem;
    gap: 0.7rem;
}
.achievement-goal-left,
.achievement-goal-right {
    flex: 1 1 160px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.6rem;
}
.achievement-goal-left h3,
.achievement-goal-right h3 {
    font-size: 1.08rem;
    margin: 0 0 0.34rem 0;
    font-weight: 700;
    letter-spacing: 1px;
    color: #4285f4;
    text-shadow: 0 0 10px #60a5fa22;
}
html.dark-mode .achievement-goal-left h3,
html.dark-mode .achievement-goal-right h3 {
    color: #0ffca7;
    text-shadow: 0 0 14px #60a5fa, 0 0 2px #0ffca7;
}
.score, .wpm, .accuracy {
    font-size: 1.12rem;
    margin: 0.18rem 0;
}
.score-label, .wpm-label, .accuracy-label {
    font-weight: 500;
    color: #58667e;
    margin-right: 7px;
}
.score-value, .wpm-value, .accuracy-value {
    font-weight: 700;
    color: #34a853;
    text-shadow: 0 0 8px #34a85355;
}
html.dark-mode .score-value, html.dark-mode .wpm-value, html.dark-mode .accuracy-value {
    color: #0ffca7;
    text-shadow: 0 0 14px #0ffca7, 0 0 2px #60a5fa;
}

/* Divider */
.achievement-goal-divider {
    width: 2px;
    min-width: 2px;
    height: 70px;
    background: linear-gradient(180deg, #e3f0ff 0%, #4285f4 100%);
    margin: 0 0.85rem;
    border-radius: 2px;
    box-shadow: 0 0 10px #60a5fa44;
}
html.dark-mode .achievement-goal-divider {
    background: linear-gradient(180deg, #0ffca7 0%, #60a5fa 100%);
    box-shadow: 0 0 16px #0ffca7cc;
}

/* Daily Goal Progress Bar */
.progress-bar {
    width: 100%;
    height: 13px;
    background: #e7eaf3;
    border-radius: 7px;
    overflow: hidden;
    margin-bottom: 0.5em;
    box-shadow: 0 2px 8px #60a5fa22;
}
.progress {
    height: 100%;
    background: linear-gradient(90deg,#34a853 20%, #4285f4 100%);
    border-radius: 7px;
    box-shadow: 0 1px 8px #34a85388;
    transition: width 0.4s cubic-bezier(.4,0,.2,1), background 0.4s, box-shadow 0.4s;
    animation: barGlow 1.4s infinite alternate;
}
@keyframes barGlow {
    0% { box-shadow: 0 0 10px #0ffca777; }
    100% { box-shadow: 0 0 18px 3px #0ffca7cc; }
}
.progress-text {
    font-size: 0.98rem;
    color: #34a853;
    font-weight: 500;
    text-shadow: 0 0 6px #34a85388;
}
html.dark-mode .progress-bar {
    background: #293144;
    box-shadow: 0 2px 8px #0ffca744;
}
html.dark-mode .progress {
    background: linear-gradient(90deg,#0ffca7 20%, #60a5fa 100%);
    box-shadow: 0 1px 12px #0ffca7cc;
}
html.dark-mode .progress-text {
    color: #60a5fa;
    text-shadow: 0 0 14px #60a5fa;
}

/* ---------- BUTTONS ROW ---------- */
.button-row {
    display: flex;
    flex-direction: column;
    gap: 1.7rem;
    margin: 2.5rem 0 2.5rem 0;
    width: 100%;
    max-width: 350px;
    align-items: center;
    justify-content: center;
}
.main-btn-card {
    width: 100%;
    max-width: 350px;
    min-width: 220px;
    margin: 0 auto;
    background: #fff;
    border-radius: 30px;
    box-shadow: 0 4px 18px rgba(66,133,244,0.14), 0 2px 8px #e3f0ff;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.4rem 0;
    border: 2px solid transparent;
    animation: buttonOutlineGlow 2.2s infinite alternate;
}
@keyframes buttonOutlineGlow {
    0% { box-shadow: 0 0 10px #60a5fa22; border-color: #60a5fa22;}
    100% { box-shadow: 0 0 32px #0ffca799; border-color: #60a5fa88;}
}
.main-btn-card:active,
.main-btn-card.pressed {
    box-shadow: 0 2px 10px #4285f4b0, 0 0 24px #0ffca7;
    border-color: #60a5fa;
}
.main-btn {
    font-family: 'Bebas Neue', 'Poppins', Arial, sans-serif;
    font-size: 1.45rem;
    font-weight: 700;
    min-width: 180px;
    max-width: 320px;
    padding: 1.1rem 2.1rem;
    border-radius: 24px;
    background: linear-gradient(90deg,#4285f4 60%, #60a5fa 100%);
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(66,133,244,0.13);
    margin: 0.18rem 0;
    transition: background 0.18s, transform 0.13s, box-shadow 0.13s, border-color 0.13s;
    outline: none;
    will-change: transform, background, box-shadow;
    width: 100%;
    border: 2px solid #60a5fa44;
    animation: buttonGlow 1.5s infinite alternate;
    letter-spacing: 1.2px;
    text-shadow: 0 0 8px #60a5fa55;
}
@keyframes buttonGlow {
    0% { box-shadow: 0 0 12px #60a5fa88, 0 2px 8px #34a85344; border-color: #60a5fa44;}
    100% { box-shadow: 0 0 24px #60a5fa99, 0 2px 16px #0ffca7cc; border-color: #0ffca7cc;}
}
.main-btn:active, .main-btn.pressed {
    background: #2059c5;
    transform: scale(0.94);
    box-shadow: 0 2px 8px rgba(66,133,244,0.18), 0 0 24px #60a5fa99;
    border-color: #0ffca7;
}
.main-btn:hover, .main-btn:focus {
    background: #1b49a3;
    transform: scale(1.03);
    color: #fff;
    box-shadow: 0 8px 24px rgba(66,133,244,0.17), 0 0 24px #0ffca7dd;
    border-color: #0ffca7;
    animation: none;
}

/* DARK MODE BUTTONS */
html.dark-mode .main-btn-card {
    background: #232a32;
    box-shadow: 0 0 24px #60a5fa99;
    border: 2px solid #0ffca7cc;
}
html.dark-mode .main-btn {
    background: linear-gradient(90deg, #0ffca7 0%, #60a5fa 100%);
    color: #181a20;
    box-shadow: 0 0 32px #0ffca7, 0 4px 18px #60a5fa;
    border: 2px solid #0ffca7cc;
    outline: none;
    animation: neonBtnGlow 2s infinite alternate;
    text-shadow: 0 0 14px #60a5fa99;
}
@keyframes neonBtnGlow {
    0% { box-shadow: 0 0 8px #0ffca7, 0 2px 8px #60a5fa; }
    100% { box-shadow: 0 0 32px #0ffca7cc, 0 8px 32px #60a5fa; }
}
html.dark-mode .main-btn:hover, html.dark-mode .main-btn:focus {
    background: linear-gradient(90deg, #60a5fa 0%, #0ffca7 100%);
    color: #fff;
    border-color: #60a5fa;
    animation: none;
}
html.dark-mode .main-btn:active, html.dark-mode .main-btn.pressed {
    background: #60a5fa;
    color: #0ffca7;
    border-color: #0ffca7;
    animation: none;
}

/* ---------- CALL TO ACTION ---------- */
.call-to-action {
    font-size: 1.17rem;
    font-weight: 600;
    color: #4285f4;
    margin-top: 0.6em;
    margin-bottom: 0.22em;
    text-shadow: 0 0 12px #60a5fa44;
}
.motivation {
    display: block;
    font-size: 1.04rem;
    color: #34a853;
    font-weight: 500;
    margin-top: 0.38em;
    text-shadow: 0 0 8px #34a85344;
}
html.dark-mode .call-to-action {
    color: #0ffca7;
    text-shadow: 0 0 16px #0ffca7, 0 0 2px #60a5fa;
}
html.dark-mode .motivation {
    color: #60a5fa;
    text-shadow: 0 0 14px #60a5fa;
}

/* ---------- FLOATING BUTTONS ---------- */
.scroll-down-btn, .scroll-up-btn, .share-btn {
    position: fixed;
    right: 26px;
    z-index: 999;
    background: #4285f4;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    box-shadow: 0 0 14px 4px #60a5fa88, 0 2px 8px #4285f4;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    outline: none;
    transition: box-shadow 0.2s, background 0.2s, transform 0.2s, border 0.2s;
    animation: buttonGlow 1.6s infinite alternate;
    border: 2px solid #60a5fa44;
}
.scroll-down-btn {
    bottom: 32px;
}
.scroll-up-btn {
    bottom: 82px;
}
.share-btn {
    bottom: 132px;
    background: #34a853;
    box-shadow: 0 0 18px #0ffca7bb;
    border: 2px solid #0ffca7cc;
}
.share-btn .share-icon {
    font-size: 1.2rem;
    pointer-events: none;
    display: block;
    line-height: 1;
}
.scroll-down-btn:hover, .scroll-down-btn:focus,
.scroll-up-btn:hover, .scroll-up-btn:focus,
.share-btn:hover, .share-btn:focus {
    background: #2059c5;
    box-shadow: 0 0 20px 8px #60a5faaf, 0 2px 14px #4285f4;
    border-color: #0ffca7;
    transform: scale(1.13);
}
.share-btn:hover, .share-btn:focus {
    background: #1e8e3e;
    border-color: #60a5fa;
}
.scroll-down-btn:active,
.scroll-up-btn:active,
.share-btn:active {
    background: #60a5fa;
    color: #222e3a;
    transform: scale(0.90);
    border-color: #34a853;
}
@keyframes buttonGlow {
    0% { box-shadow: 0 0 8px #0ffca777, 0 2px 8px #34a85344; border-color: #60a5fa44;}
    100% { box-shadow: 0 0 24px #60a5fa99, 0 2px 16px #0ffca7cc; border-color: #0ffca7cc;}
}
.scroll-down-btn .arrow,
.scroll-up-btn .arrow {
    font-size: 1.25rem;
    display: block;
    line-height: 1;
    pointer-events: none;
}
html.dark-mode .scroll-down-btn,
html.dark-mode .scroll-up-btn,
html.dark-mode .share-btn {
    background: #181a20 !important;
    color: #0ffca7 !important;
    box-shadow: 0 0 32px #0ffca7, 0 2px 8px #232a32;
    border: 2px solid #60a5fa;
    outline: none;
    animation: neonBtnGlow 2s infinite alternate;
}

/* ---------- SHARE POPUP ---------- */
.share-popup {
    position: fixed;
    right: 74px;
    bottom: 132px;
    z-index: 1000;
    background: #fff;
    border-radius: 13px;
    box-shadow: 0 4px 32px #4285f444;
    padding: 0.8rem 1.1rem 0.7rem 1.1rem;
    display: none;
    min-width: 170px;
    animation: fadeInShare 0.18s;
    border: 2px solid #60a5fa44;
}
@keyframes fadeInShare {
    0% { opacity: 0; transform: scale(0.85);}
    100% { opacity: 1; transform: scale(1);}
}
.share-popup.show {
    display: block;
}
.share-popup-inner {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.share-title {
    font-size: 1.04rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
    color: #2059c5;
    text-shadow: 0 0 8px #60a5fa22;
}
.share-socials {
    display: flex;
    gap: 0.7rem;
}
.social-icon {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #f1f7fd;
    border-radius: 8px;
    transition: background 0.16s, box-shadow 0.15s, transform 0.14s, border 0.2s;
    box-shadow: 0 2px 6px #60a5fa22;
    border: 2px solid #e3f0ff;
    animation: buttonGlow 1.2s infinite alternate;
}
.social-icon:hover, .social-icon:focus {
    background: #e3f0ff;
    transform: scale(1.12);
    box-shadow: 0 2px 10px #34a85333, 0 0 22px #0ffca7cc;
    border-color: #0ffca7cc;
}
.social-icon img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    display: block;
}
html.dark-mode .share-popup {
    background: #232a32;
    color: #0ffca7;
    box-shadow: 0 4px 32px #60a5fa44;
    border: 2px solid #0ffca7;
}
html.dark-mode .share-title {
    color: #60a5fa !important;
}
html.dark-mode .social-icon {
    background: #181a20 !important;
    border: 2px solid #60a5fa !important;
    box-shadow: 0 0 18px #0ffca7bb;
    animation: neonBtnGlow 2s infinite alternate;
}
html.dark-mode .social-icon:hover, html.dark-mode .social-icon:focus {
    background: #232a32 !important;
    border-color: #0ffca7 !important;
    box-shadow: 0 0 32px #0ffca7cc;
}

/* ---------- FOOTER (NO CHANGE) ---------- */
.main-footer {
    width: 100%;
    background: #fff;
    border-top: 1px solid #e7eaf3;
    box-shadow: 0 -2px 12px rgba(66,133,244,0.04);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0 0.8rem 0;
    margin-top: 1.5em;
    transition: background 0.4s, box-shadow 0.4s;
}
.main-footer ul {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 0.5em;
    flex-wrap: wrap;
}
.main-footer li a {
    font-size: 1.04rem;
    color: #4285f4;
    font-weight: 600;
    padding: 0.3em 0.9em;
    border-radius: 9px;
    transition: background 0.13s, color 0.13s, box-shadow 0.2s;
    box-shadow: 0 0 8px #60a5fa22;
    outline: none;
    border: 2px solid transparent;
}
.main-footer li a:hover,
.main-footer li a:focus {
    background: #e3f0ff;
    color: #2059c5;
    box-shadow: 0 0 18px #60a5fa99;
    border-color: #0ffca7;
    animation: menuGlow 1.2s infinite alternate;
}
.copyright {
    font-size: 0.97rem;
    color: #58667e;
    margin-top: 0.3em;
}
html.dark-mode .main-footer {
    background: #232a32;
    border-top: 1px solid #293144;
    box-shadow: 0 -2px 12px #60a5fa11;
}
html.dark-mode .main-footer li a {
    color: #60a5fa;
    background: #232a32;
    box-shadow: 0 0 14px #0ffca7cc;
}
html.dark-mode .main-footer li a:hover, html.dark-mode .main-footer li a:focus {
    background: #181a20;
    color: #0ffca7;
    border-color: #60a5fa;
}
html.dark-mode .copyright {
    color: #60a5fa;
}

/* ---------- RESPONSIVE DESIGN ---------- */
@media (max-width: 900px) {
    .main-header, .main-footer {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .main-body {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .achievement-goal-card, .achievement-goal-row {
        max-width: 95vw;
    }
    .menu-nav ul {
        gap: 1rem;
    }
}
@media (max-width: 750px) {
    .main-body {
        padding: 1.2rem 0 1.2rem 0;
    }
    .center-content {
        min-width: 180px;
        max-width: 100%;
        margin: 0;
    }
    .achievement-goal-card {
        max-width: 98vw;
    }
    .achievement-goal-row {
        flex-direction: column;
        gap: 1.2rem;
        max-width: 100%;
        align-items: stretch;
        padding: 1.2rem 0.5rem;
    }
    .achievement-goal-divider {
        width: 100%;
        height: 2px;
        min-width: unset;
        margin: 1.2rem 0;
        background: linear-gradient(90deg, #e3f0ff 0%, #4285f4 100%);
    }
    html.dark-mode .achievement-goal-divider {
        background: linear-gradient(90deg, #0ffca7 0%, #60a5fa 100%);
    }
    .button-row {
        max-width: 100%;
    }
    .main-btn-card {
        max-width: 90vw;
        min-width: 140px;
    }
    .main-btn {
        min-width: 140px;
        max-width: 90vw;
        font-size: 1.1rem;
        padding: 1rem 1.2rem;
    }
    .main-footer ul {
        gap: 1rem;
    }
    .header-center {
        gap: 0.15rem;
    }
    .scroll-down-btn, .scroll-up-btn, .share-btn {
        right: 12px;
        width: 32px;
        height: 32px;
    }
    .scroll-down-btn {
        bottom: 12px;
    }
    .scroll-up-btn {
        bottom: 62px;
    }
    .share-btn {
        bottom: 112px;
    }
    .share-popup {
        right: 54px;
        bottom: 112px;
        min-width: 130px;
        padding: 0.6rem 0.8rem 0.6rem 0.8rem;
    }
    .share-title {
        font-size: 0.95rem;
    }
    .share-socials {
        gap: 0.5rem;
    }
    .social-icon {
        width: 22px;
        height: 22px;
    }
    .social-icon img {
        width: 14px;
        height: 14px;
    }
}
@media (max-width: 500px) {
    .main-header {
        flex-direction: column;
        align-items: stretch;
        padding: 1.2rem 0.7rem 0.7rem 0.7rem;
        gap: 0.7rem;
    }
    .header-center {
        justify-content: flex-start;
        text-align: left;
    }
    .main-footer ul {
        flex-direction: column;
        gap: 0.7rem;
    }
}