/* ==========================================================================
   1. Root Variables
   ========================================================================== */

:root {
    /* Color palette for the application */
    --color-background: #1E2A3A;
    --color-text-primary: #F0F0F0;
    --color-accent: #00C896;
    --color-accent-hover: #68dbbe;
    --color-surface: #162033;
    --color-muted: #A0AEC0;

    /* Font families */
    --font-body: 'Inter', sans-serif;
    --font-display: 'Roboto Mono', monospace;

    /* Global border radius */
    --border-radius: 6px;
}

/* ==========================================================================
   2. Global Styles & Resets
   ========================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: 0.5s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    transition: 0.5s ease-in-out;
}

/* Use the 'hidden' attribute to semantically hide elements */
[hidden] {
    display: none !important;
}

/* ==========================================================================
   3. Layout & Main Structure
   ========================================================================== */

.main-container {
    min-height: 100vh;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.app-wrapper {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: clamp(24px, 5vw, 48px);
    gap: 10%;
    position: relative;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: clamp(70px, 80%, 600px);
    gap: 5vh;
}

.visually-hidden {
    visibility: hidden;
    height: 0;
    margin-top: -50px;
}

/* ==========================================================================
   4. Header & Navigation
   ========================================================================== */

header {
    width: clamp(70px, 80%, 600px);
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.header__brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--color-text-primary);
    /* Passes the current text color to the inline SVG */
}

/* ==========================================================================
   Logo Styles (Adicione ao seu CSS)
   ========================================================================== */

/* Remove a altura fixa do SVG no link da marca para que o CSS controle */
.header__brand-logo {
    height: 45px;
    width: auto;
    transition: none;
    /* O logo em si não precisa de transição */
}

/* Aplica a cor primária do texto ao círculo e ao nome */
.header__brand-logo,
.header__brand-logo .logo-text {
    stroke: var(--color-text-primary);
    /* Cor da borda para o círculo */
    fill: var(--color-text-primary);
    /* Cor do preenchimento para o texto */
}

/* Aplica a cor de destaque (accent) à onda */
.header__brand-logo .logo-icon__wave {
    stroke: var(--color-accent);
}

/* Estilos da fonte para o texto do logo */
.header__brand-logo .logo-text {
    font-family: 'Inter', sans-serif;
    /* Usando a mesma fonte do seu site para consistência */
    font-size: 32px;
    font-weight: 600;
}

.header__controls {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.logo-icon__circle {
    stroke: var(--color-text-primary);
}

/* ==========================================================================
   5. Buttons & Controls
   ========================================================================== */

.button {
    background: none;
    border: none;
    color: var(--color-muted);
    transition: 0.3s ease-in-out;
    cursor: pointer;
    border-radius: var(--border-radius);
}

.button-icon:hover {
    opacity: .7;
}

.button-icon:active {
    transition: none;
    opacity: .4;
}

.button--primary {
    background-color: var(--color-accent);
    color: var(--color-background);
    font-weight: 800;
    font-size: 1.25rem;
    padding: 20px 70px;
    letter-spacing: 2px;
}

.button--playing {
    background-color: var(--color-accent-hover);
    transform: translateY(-0.7vh);
}

.button--primary:hover {
    transform: translateY(-0.7vh);
}

.button--secondary {
    transform: scale(1.25);
}

.button--secondary:hover {
    opacity: .6;
}

.button--secondary:active {
    transition: none;
    opacity: .4;
}

/* ==========================================================================
   6. Timer Section
   ========================================================================== */

.timer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4vh;
    width: 100%;
}

.timer__modes {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.button--time-mode {
    width: 70%;
    height: 3vh;
    font-size: clamp(0.9rem, 1vw, 2rem);
    font-weight: 500;
}

.button--time-mode:hover {
    background-color: var(--color-surface);
}

.button--time-mode.active {
    background-color: var(--color-surface);
    transform: translateY(-0.3vh);
}

/* Cycle Indicator styles */
.cycle-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: -25px;
    margin-top: -15px;
    height: 12px;
}

.cycle-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: transparent;
    border: 2px solid var(--color-muted);
    opacity: 0.6;
    transition: background-color 0.4s ease, border-color 0.4s ease, opacity 0.4s ease;
}

.cycle-dot.completed {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    opacity: 1;
}

/* Timer clock display and progress ring */
.timer__clock {
    position: relative;
    width: clamp(300px, 40vw, 400px);
    height: clamp(300px, 40vw, 400px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer__display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    font-size: clamp(5rem, 8vw, 7rem);
    font-family: var(--font-display);
}

.progress-ring {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.progress-ring__background,
.progress-ring__progress {
    fill: none;
    stroke-width: 8;
}

.progress-ring__background {
    stroke: var(--color-surface);
}

.progress-ring__progress {
    stroke: var(--color-accent);
    stroke-linecap: round;
    transform-origin: center;
    transform: rotate(-90deg);
    transition: stroke-dashoffset 0.3s linear, stroke 0.5s ease-in-out;
}

.timer__controls {
    display: inline-flex;
    gap: 20px;
}

/* ==========================================================================
   7. Tasks Section
   ========================================================================== */

.tasks {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    gap: 3vh;
}

.tasks__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    position: relative;
}

.button--tasks__options:hover {
    background-color: var(--color-surface);
}

.tasks__display {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2vh;
}

.button--tasks__add {
    width: 100%;
    height: 5vh;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5%;
    border-radius: var(--border-radius);
    border: var(--color-muted) 1px solid;
}

.button--tasks__add:hover {
    background-color: var(--color-surface);
}

/* Task creation form */
.tasks__display-create {
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    align-items: baseline;
    padding: 10px;
    border-radius: var(--border-radius);
    gap: 5px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 200ms ease, visibility 0s linear 200ms;
}

.tasks__display-create:not([hidden]) {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 200ms ease;
}

.tasks__display-create input {
    background-color: var(--color-surface);
    border: none;
    width: 100%;
    padding: 2px 4px;
    color: var(--color-text-primary);
}

.tasks__display-create button {
    border: none;
    width: 100px;
    border-radius: var(--border-radius);
    cursor: pointer;
    height: 20px;
    font-weight: 500;
    transition: .3s;
}

.tasks__display-create--buttons {
    display: inline-flex;
    justify-content: space-between;
    width: 100%;
}

.tasks__display-create--buttons--save {
    background-color: var(--color-accent);
}

.tasks__display-create--buttons--cancel {
    background-color: var(--color-muted);
}

/* Individual task item styling */
.task-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: var(--color-surface);
    padding: 12px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-accent);
    position: relative;
}

.task-item[draggable="true"] {
    cursor: move;
}

.task-item.dragging {
    opacity: 0.5;
}

.task-item__checkbox {
    min-width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
    cursor: pointer;
}

.task-item__text {
    flex-grow: 1;
    overflow-wrap: break-word;
    min-width: 0;
}

.task-item--completed .task-item__text {
    text-decoration: line-through;
    color: var(--color-muted);
}

/* Task options menu (Edit, Delete) */
.task-item__options {
    margin-left: auto;
}

.task-item__menu {
    position: absolute;
    top: 40px;
    right: 0;
    background-color: #2a3b50;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    width: 120px;
    z-index: 10;
    overflow: hidden;
    display: none;
}

.task-item__menu.active {
    display: block;
}

.task-item__menu-option {
    padding: 10px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.task-item__menu-option:hover {
    background-color: var(--color-surface);
}

/* Task editing mode styles */
.task-item--editing .task-item__text,
.task-item--editing .task-item__checkbox,
.task-item--editing .task-item__options {
    display: none;
}

.task-item__edit-container {
    display: none;
    width: 100%;
    gap: 8px;
}

.task-item--editing .task-item__edit-container {
    display: flex;
    align-items: center;
}

.task-item__edit-input {
    flex-grow: 1;
    background-color: var(--color-background);
    border: 1px solid var(--color-muted);
    color: var(--color-text-primary);
    padding: 6px 8px;
    border-radius: var(--border-radius);
}

.task-item__edit-button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-primary);
}

@keyframes task-add-animation {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.task-item--new {
    animation: task-add-animation 0.4s ease-out;
}

/* ==========================================================================
   8. Panels & Modals (Settings, Menus, Confirmation)
   ========================================================================== */

/* General styles for pop-up panels */
.settings,
.tasks-settings {
    background-color: var(--color-surface);
    width: clamp(70px, 70%, 600px);
    position: fixed;
    border-radius: var(--border-radius);
    padding: 2vh 1vh;
    top: 10%;
    display: flex;
    flex-direction: column;
    gap: 1vh;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 200ms ease, transform 200ms ease, visibility 0s linear 200ms;
    transform: translateY(-10px);
    z-index: 100;
}

.settings:not([hidden]),
.tasks-settings:not([hidden]) {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition: opacity 200ms ease, transform 200ms ease;
}

.settings__section {
    width: 90%;
    margin-top: 5%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1vh;
}

.settings__options {
    width: 100%;
    margin-top: 5%;
}

.settings__options--1-line {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
}

/* Toggle switch styles */
.settings__options--switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.settings__options--switch-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.settings__options--switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.settings__options--switch-slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.settings__options--switch-slider {
    background-color: #2196F3;
}

input:checked+.settings__options--switch-slider:before {
    transform: translateX(26px);
}

/* Number input styles */
.settings__numbers-input {
    width: 60px;
    height: 34px;
    border-radius: var(--border-radius);
    border: none;
    padding-left: 5px;
}

.settings__timers--inputs {
    display: inline-flex;
    width: 100%;
    gap: 5%;
    justify-content: space-evenly;
}

.settings__timers--labels {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.settings__notifications--text {
    max-width: 70%;
}

/* Specific styles for the task settings menu */
.tasks__header .tasks-settings {
    height: auto;
    position: absolute;
    margin-bottom: 8px;
    right: 0;
    width: auto;
    top: 100%;
    gap: 0;
    padding: 0;
    z-index: 50;
    transform: translateY(0);
}

.tasks-settings__options {
    display: inline-flex;
    width: 100%;
    gap: 5px;
    cursor: pointer;
    padding: 10px 5px;
    margin: 0;
    transition: none;
}

.tasks-settings__options:hover {
    background: rgb(30, 42, 58, 0.8);
}

/* Language Menu */
.language-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    width: 140px;
    z-index: 1000;
    overflow: hidden;
    display: none;
    margin-top: 8px;
}

.language-menu.active {
    display: block;
}

.language-option {
    padding: 12px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    color: var(--color-text-primary);
    text-decoration: none;
    gap: 10px;
    font-size: 0.95rem;
    transition: background-color 0.2s;
    position: relative;
}

.language-option:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.language-flag {
    font-size: 1.2rem;
}

.language-check {
    margin-left: auto;
    font-size: 1rem;
    opacity: 0;
    color: var(--color-accent);
}

.language-option.active .language-check {
    opacity: 1;
}

/* Confirmation Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0s linear 0.3s;
}

.modal-overlay--visible {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease;
}

.modal {
    background-color: var(--color-surface);
    padding: 24px;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 400px;
    text-align: center;
    transform: scale(0.9);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28), opacity 0.3s ease;
    transition-delay: 0.1s;
}

.modal-overlay--visible .modal {
    transform: scale(1);
    opacity: 1;
}

.modal .modal__title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.modal__text {
    font-size: 1rem;
    color: var(--color-muted);
    line-height: 1.5;
    margin-bottom: 24px;
}

.modal__actions {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.modal__button {
    padding: 10px 24px;
    font-weight: 500;
    font-size: 0.9rem;
    border: none;
    border-radius: var(--border-radius);
}

.modal__button--cancel {
    background-color: var(--color-background);
    color: var(--color-text-primary);
}

.modal__button--confirm {
    background-color: #e53e3e;
    color: #fff;
}

/* ==========================================================================
    9. Informational Section
   ========================================================================== */

.scroll-down-indicator {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-muted);
    z-index: 5;
    transition: color 0.3s;
}

.scroll-down-indicator:hover {
    color: var(--color-text-primary);
}

.scroll-down-indicator span {
    font-size: 3rem;
}

.info-section {
    width: 100%;
    padding: clamp(48px, 8vw, 80px) clamp(24px, 5vw, 48px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    background-color: var(--color-surface);
}

.info-section__title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    color: var(--color-accent);
    text-align: center;
    max-width: 600px;
}

.info-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    padding: clamp(1.5rem, 3vw, 2rem);
    width: clamp(70px, 90%, 700px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.info-card--visible {
    opacity: 1;
    transform: translateY(0);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
}

.info-card__title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.info-card__title .material-symbols-outlined {
    color: var(--color-accent);
}

.info-card__text {
    font-size: clamp(0.9rem, 2vw, 1rem);
    line-height: 1.6;
    color: var(--color-muted);
}

/* List styles for info cards */
.info-card__list {
    list-style: none;
    padding-left: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-card__list li {
    font-size: clamp(0.9rem, 2vw, 1rem);
    line-height: 1.6;
    color: var(--color-muted);
}

ol.info-card__list {
    counter-reset: item;
}

ol.info-card__list li {
    padding-left: 40px;
    position: relative;
}

ol.info-card__list li::before {
    counter-increment: item;
    content: counter(item);
    position: absolute;
    left: 0;
    top: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: var(--color-background);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
    font-family: var(--font-display);
}

ul.info-card__list li {
    padding-left: 30px;
    position: relative;
}

ul.info-card__list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.5rem;
    line-height: 1;
}

.info-card__list--benefits li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding-left: 0;
}

.info-card__list--benefits li::before {
    content: none;
}

.info-card__list--benefits li .material-symbols-outlined {
    color: var(--color-accent);
    margin-top: 2px;
}

.info-card__list li strong {
    color: var(--color-text-primary);
}

.footer {
    width: 100%;
    padding: 16px 24px;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.9rem;
    background-color: var(--color-background);
}

.footer a {
    color: var(--color-accent);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   11. Mobile Instructions Modal
   ========================================================================== */

.ios-modal {
    text-align: left;
    position: relative;
}

.ios-modal__close {
    position: absolute;
    top: 12px;
    right: 12px;
}

.ios-modal__instructions {
    list-style-position: inside;
    padding-left: 0;
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    color: var(--color-muted);
}

.ios-modal__instructions li {
    line-height: 1.5;
}

.ios-modal__instructions li strong {
    color: var(--color-text-primary);
}

.ios-modal__icon-example {
    margin-top: 24px;
    padding: 12px;
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    text-align: center;
    color: var(--color-text-primary);
    font-weight: 500;
}

.ios-modal__icon-example img {
    display: inline-block;
    vertical-align: middle;
    width: 20px;
    height: 20px;
    margin: 0 4px;
    filter: var(--color-text-primary)
}

.ios-modal__icon-example img[alt~="More"] {
    width: 18px;
    height: 18px;
}

.ios-modal__icon-img {
    fill: var(--color-text-primary);
}

.instructions-block {
    display: none;
}

.modal--show-ios .instructions--ios {
    display: block;
}

.modal--show-android .instructions--android {
    display: block;
}

.ios-modal .modal__title {
    color: var(--color-text-primary) !important;
    margin-bottom: 16px;
}