/* Style Settings */
@import url('https://fonts.googleapis.com/css?family=Karla:400,700&display=swap');

:root {
    /* Colors */
    --color-primary: rgb(66, 110, 255);
    --color-primary-light: rgba(0, 140, 255, 0.15);
    --color-primary-transparent: rgba(0, 140, 255, 0.1);
    --color-text: rgb(99, 99, 99);
    --color-white: #fff;
    --color-background: rgb(243, 242, 242);
    --color-icon-circle: rgb(221, 221, 221);
    --color-icon-text: rgb(32, 32, 32);
    --color-achievement: rgb(0, 170, 255);
    --color-danger: rgba(255, 0, 0, 0.1);
    --color-danger-border: rgba(255, 0, 0, 0.3);
    --color-danger-text: #ff3333;
    --color-winner: gold;

    /* Fonts */
    --font-primary: 'Karla', sans-serif;
    --font-system: 'Helvetica Neue', Helvetica, Arial, sans-serif;

    /* Sizes */
    --space-xs: 5px;
    --space-sm: 10px;
    --space-md: 15px;
    --space-lg: 20px;
    --space-xl: 30px;

    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-fancy: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Border Radius */
    --radius-sm: 15px;
    --radius-md: 25px;
    --radius-circle: 50%;

    /* Shadows */
    --shadow-popup: 0 4px 15px rgba(0, 140, 255, 0.2);
    --shadow-hover: 2px 2px 2px rgba(50, 50, 50, 0.77);
}

/* Base Styles */
body {
    background-color: var(--color-background);
    transition: background-color var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: var(--space-xl) var(--space-md);
    margin: 0;
}

/* Profile Section */
#userPhoto {
    width: 100px;
    height: 100px;
    display: block;
    margin: 0 auto var(--space-lg);
    border-radius: var(--radius-circle);
    transition: transform var(--transition-medium);
    position: relative;
}

#userPhoto:hover, 
#userPhoto:focus {
    transform: scale(2.0) rotate(360deg);
}

#userName {
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.25;
    display: block;
    font-family: var(--font-primary);
    width: 100%;
    max-width: 300px;
    text-align: center;
    text-decoration: none;
    margin: 0 auto var(--space-lg);
    padding: 0;
}

/* Instrument indicator */
.instrument-indicator {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    font-family: var(--font-primary);
}

.instrument-indicator.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Instrument change animation */
@keyframes instrumentChange {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.2) rotate(180deg); }
    100% { transform: scale(1) rotate(360deg); }
}

.instrument-change {
    animation: instrumentChange 0.5s ease;
}

/* Links Section */
#links {
    width: 100%;
    max-width: 675px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.link-container {
    display: flex;
    justify-content: center;
    width: 100%;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

/* Single link (not in container) */
#links > .link {
    width: 100%;
    max-width: 675px;
}

@keyframes linkEntrance {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.link {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-primary);
    text-align: center;
    margin-bottom: var(--space-lg);
    padding: 0 var(--space-xl);
    text-decoration: none;
    font-size: 1rem;
    font-weight: bold;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: 2px solid var(--color-primary);
    height: 56px;
    box-sizing: border-box;
    line-height: 1;
    opacity: 0;
    animation: linkEntrance 0.5s ease forwards;
}

.link:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.link-container .link {
    width: calc(50% - var(--space-sm) / 2);
    margin-bottom: 0;
}

.link-content {
    position: absolute;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--space-xl);
}

.link i {
    flex-shrink: 0;
    width: 24px;
    text-align: center;
    margin-right: var(--space-md);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.link span {
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.share-btn {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: inherit;
    padding: var(--space-xs);
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 2;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.link:hover .share-btn {
    opacity: 0.7;
}

.share-btn:hover {
    opacity: 1 !important;
}

/* Footer */
.footer {
    text-align: center;
    font-size: 1.3rem;
    margin-top: auto;
    padding: var(--space-xl) 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.footer a {
    text-decoration: none;
}

.footer i {
    font-size: 1.2em;
    line-height: 38px;
}

.circulo {
    background: var(--color-icon-circle);
    border-radius: var(--radius-circle);
    width: 38px;
    height: 38px;
    text-align: center;
    font-size: 10px;
    color: var(--color-icon-text);
    transition: all var(--transition-fast);
}

.circulo:hover {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-hover);
}

/* Night Mode Toggle */
.night_mode {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-xl);
    background: none;
    border: none;
    z-index: 10000000;
    color: var(--color-text);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: var(--space-xs);
}

.night_mode:hover {
    color: var(--color-primary);
}

/* Achievements Section */
#achievementsSection {
    text-align: center;
    margin-top: var(--space-xl);
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 var(--space-lg);
    font-family: var(--font-system);
}

.achievements-header {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-text);
}

.achievements-header h2 {
    margin: 0;
    color: var(--color-text);
    font-weight: 500;
    font-size: 1.2em;
}

.achievements-header i {
    transition: transform var(--transition-fast);
}

.achievements-header.expanded i {
    transform: rotate(180deg);
}

.achievements-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-fast);
}

.achievements-content.expanded {
    max-height: 500px;
}

.achievements-grid {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
    width: 100%;
}

.achievement {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: var(--color-primary-transparent);
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.5;
    transition: all var(--transition-fast);
    font-weight: 500;
    color: var(--color-text);
    flex: 1;
    border: 1px solid var(--color-primary-light);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.achievement span {
    margin-top: var(--space-xs);
    font-size: 0.9em;
}

.achievement.unlocked {
    opacity: 1;
    background: var(--color-primary-light);
    box-shadow: var(--shadow-popup);
}

.achievement i {
    color: var(--color-achievement);
}

/* Achievement Popup */
#achievementPopup {
    position: fixed;
    top: var(--space-lg);
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    background: var(--color-primary-transparent);
    color: var(--color-white);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fancy);
    z-index: 1000;
    pointer-events: none;
    opacity: 0;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-primary-light);
    box-shadow: var(--shadow-popup);
    font-family: var(--font-system);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    min-width: 300px;
}

#achievementPopup.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

#achievementPopup i {
    font-size: 24px;
    color: var(--color-achievement);
    animation: achievementIcon 1s ease infinite;
}

#achievementText {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

#achievementText::before {
    content: "Achievement Unlocked!";
    font-size: 0.8em;
    color: var(--color-achievement);
    margin-bottom: var(--space-xs);
}

/* Winner Styles */
#winner {
    color: var(--color-winner);
    font-size: 24px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    text-align: center;
    width: 100%;
}

#winner h3 {
    animation: pulsate 0.5s ease-in-out infinite;
    display: inline-block;
    margin: 0;
}

/* Reset Button */
.reset-achievements {
    display: none;
    margin-top: var(--space-md);
    padding: 8px 16px;
    background: var(--color-danger);
    border: 1px solid var(--color-danger-border);
    color: var(--color-danger-text);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: var(--font-system);
    transition: all var(--transition-fast);
}

.reset-achievements:hover {
    background: var(--color-danger-border);
}

/* Animations */
@keyframes achievementIcon {
    0%, 100% { transform: scale(1) rotate(0deg); }
    25% { transform: scale(1.2) rotate(-10deg); }
    50% { transform: scale(1) rotate(0deg); }
    75% { transform: scale(1.2) rotate(10deg); }
}

@keyframes pulsate {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes spinGrow {
    0% { transform: scale(1) rotate(0deg); }
    100% { transform: scale(30) rotate(3600deg); }
}

.spin-grow {
    animation: spinGrow 5s ease forwards !important;
    transform-origin: center !important;
    transition: none !important;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Dark Mode */
body.dark-mode {
    --color-background: rgb(18, 18, 18);
    --color-text: rgb(200, 200, 200);
    --color-icon-circle: rgb(45, 45, 45);
    --color-icon-text: rgb(200, 200, 200);
    --color-danger-text: #ff6666;
}

body.dark-mode #achievementPopup {
    background: rgba(0, 140, 255, 0.35);
    box-shadow: 0 4px 15px rgba(0, 140, 255, 0.3);
}

/* Links Header */
.links-header {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--space-md);
    padding: 0 var(--space-md);
    gap: var(--space-sm);
    width: 100%;
    text-align: center;
    position: relative;
}

.view-toggle, .page-share, .piano-mode-toggle {
    background: none;
    border: none;
    color: var(--color-text);
    padding: var(--space-sm);
    cursor: pointer;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
}

.view-toggle:hover, .page-share:hover, .piano-mode-toggle:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* Piano mode toggle with instrument indicator */
.piano-mode-toggle {
    background: none;
    border: none;
    color: var(--color-text);
    padding: var(--space-sm);
    cursor: pointer;
    transition: color var(--transition-fast);
    position: relative;
}

.piano-mode-toggle:hover {
    color: var(--color-text);
    opacity: 0.7;
}

body.piano-mode .piano-mode-toggle {
    color: var(--color-primary);
    opacity: 1;
}

body.piano-mode .piano-mode-toggle:hover {
    color: var(--color-primary);
    opacity: 0.8;
}

/* Instrument indicator on the music icon */
.piano-mode-toggle::after {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: transparent;
    opacity: 0;
    transition: all var(--transition-fast);
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

body.piano-mode .piano-mode-toggle::after {
    opacity: 1;
    background-color: var(--color-primary);
}

/* Different colors for different instruments */
body.piano-mode .piano-mode-toggle.instrument-0::after {
    content: 'P';
    background-color: #3498db;
}

body.piano-mode .piano-mode-toggle.instrument-1::after {
    content: 'S';
    background-color: #e74c3c;
}

body.piano-mode .piano-mode-toggle.instrument-2::after {
    content: 'M';
    background-color: #2ecc71;
}

body.piano-mode .piano-mode-toggle.instrument-3::after {
    content: 'E';
    background-color: #f39c12;
}

/* Updated sustain toggle for proper positioning in the header */
.links-header .sustain-toggle {
    position: absolute;
    right: 10px;
    top: 0;
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    width: 0;
    margin: 0;
}

body.piano-mode .links-header .sustain-toggle {
    display: inline-flex;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    width: auto;
    position: static;
}

/* Ensure sustain toggle is hidden when piano mode is disabled */
body:not(.piano-mode) .links-header .sustain-toggle {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    width: 0 !important;
    margin: 0 !important;
    position: absolute !important;
}

.links-header .sustain-toggle.active {
    background-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0, 140, 255, 0.4);
    transform: scale(1.05);
}

.links-header .sustain-toggle:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

.links-header .sustain-toggle:active {
    transform: scale(0.95);
    background-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(0, 140, 255, 0.6);
}

/* Add pulsating animation for active sustain */
@keyframes sustainPulse {
    0%, 100% { box-shadow: 0 0 10px rgba(0, 140, 255, 0.4); }
    50% { box-shadow: 0 0 15px rgba(0, 140, 255, 0.7); }
}

.links-header .sustain-toggle.active {
    animation: sustainPulse 1.5s ease-in-out infinite;
}

/* Show toast for sustain toggle */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 5px;
    font-size: 14px;
    z-index: 1001;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    font-family: var(--font-primary);
    font-weight: 500;
}

.toast.show {
    opacity: 1;
}

/* Piano mode styles */
body.piano-mode .link {
    background-color: var(--color-white);
    color: var(--color-primary);
    border: 1px solid var(--color-text);
    border-radius: 0 0 5px 5px;
    margin-bottom: var(--space-lg);
    position: relative;
    transition: all 0.15s ease-out;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

body.piano-mode .link:active,
body.piano-mode .link.touched {
    transform: translateY(4px) scale(0.98);
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.2);
    background-color: var(--color-primary-light);
}

body.piano-mode .link::before {
    content: attr(data-note);
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}

body.piano-mode .link:hover::before,
body.piano-mode .link:active::before,
body.piano-mode .link.touched::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
}

/* Black keys styling */
body.piano-mode .link[data-note*="#"] {
    background-color: var(--color-text);
    color: var(--color-white);
    height: 45px;
    margin-top: -22.5px;
    z-index: 2;
    width: 60%;
}

body.piano-mode .link[data-note*="#"]:hover,
body.piano-mode .link[data-note*="#"]:active,
body.piano-mode .link[data-note*="#"].touched {
    background-color: var(--color-icon-text);
}

/* White keys hover state */
body.piano-mode .link:not([data-note*="#"]):hover {
    background-color: #f0f0f0;
}

/* Container adjustments for piano layout */
body.piano-mode #links {
    position: relative;
    padding-top: 30px;
    touch-action: none;
}

body.piano-mode .link-container {
    position: relative;
    margin-bottom: 0;
}

/* Adjust spacing for mobile */
@media screen and (max-width: 768px) {
    body.piano-mode .link[data-note*="#"] {
        width: 70%;
    }
}

/* Grid View */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    width: 100%;
}

.links-grid .link-container {
    display: contents;
}

.links-grid .link {
    width: 100%;
    margin-bottom: 0;
}

/* List View */
.links-grid.list-view {
    display: flex;
    flex-direction: column;
}

.links-grid.list-view .link-container {
    display: flex;
}

.links-grid.list-view .link {
    width: 675px;
}

/* Dark Mode Improvements */
body.dark-mode {
    background-color: #1a1a1a;
}

body.dark-mode .link {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

body.dark-mode .link:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

body.dark-mode .link:hover .share-btn {
    color: var(--color-primary);
    opacity: 0.7;
}

body.dark-mode .link:hover .share-btn:hover {
    opacity: 1;
}

body.dark-mode .link:hover i,
body.dark-mode .link:hover span {
    color: var(--color-primary);
}

/* Container width constraints */
#links, #userName, #achievementsSection {
    width: 100%;
    max-width: 675px;
    padding: 0;
}

/* Media Queries for Responsive Design */
@media screen and (max-width: 768px) {
    body {
        padding: var(--space-lg) var(--space-sm);
    }

    .links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .link-container {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .link-container .link {
        width: 100%;
    }

    .night_mode {
        top: var(--space-sm);
        right: var(--space-sm);
    }

    #userPhoto:hover, 
    #userPhoto:focus {
        transform: scale(1.5) rotate(360deg);
    }

    .links-grid.list-view {
        grid-template-columns: 1fr;
    }

    .links-grid.list-view .link {
        width: 100%;
    }

    .links-header {
        flex-wrap: wrap;
        justify-content: center;
    }

    .sustain-toggle {
        position: static;
        margin-left: 0;
    }
}

@media screen and (max-width: 480px) {
    .link {
        padding: 0 var(--space-lg);
        font-size: 0.9rem;
        height: 48px;
    }

    .link i {
        margin-right: var(--space-sm);
        font-size: 1rem;
    }

    .footer {
        gap: var(--space-sm);
    }

    .circulo {
        width: 32px;
        height: 32px;
        line-height: 32px;
    }

    .links-grid {
        gap: var(--space-xs);
    }
}

/* Add these new keyframes */
@keyframes buttonEntrance {
    0% {
        opacity: 0;
        transform: translateY(20px) rotateX(-90deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

/* Add intro animation class */
.link.intro-animation {
    animation: buttonEntrance 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    opacity: 0;
}

/* Wobble animation for profile picture */
@keyframes wobble {
    0% { transform: rotate(0deg); }
    25% { transform: rotate(-10deg); }
    50% { transform: rotate(0deg); }
    75% { transform: rotate(10deg); }
    100% { transform: rotate(0deg); }
}

.wobble-animation {
    animation: wobble 0.4s ease-in-out;
}