/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* CSS Variables for Color Palette */
:root {
    --primary-blue: #2196F3;
    --primary-green: #4CAF50;
    --primary-yellow: #FFC107;
    --primary-red: #F44336;
    --primary-purple: #9C27B0;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    color: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

.header__nav {
    display: flex;
    gap: 1rem;
}

/* Main Content */
.main {
    flex: 1;
    padding: 2rem 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
    gap: 0.5rem;
}

.btn--primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn--primary:hover {
    background-color: #1976D2;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn--secondary {
    background-color: var(--gray-200);
    color: var(--gray-700);
}

.btn--secondary:hover {
    background-color: var(--gray-300);
    transform: translateY(-2px);
}

.btn--success {
    background-color: var(--primary-green);
    color: var(--white);
}

.btn--success:hover {
    background-color: #388E3C;
    transform: translateY(-2px);
}

.btn--danger {
    background-color: var(--primary-red);
    color: var(--white);
}

.btn--danger:hover {
    background-color: #D32F2F;
    transform: translateY(-2px);
}

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Welcome Section */
.welcome {
    text-align: center;
    padding: 3rem 0;
}

.welcome__content {
    max-width: 800px;
    margin: 0 auto 4rem;
}

.welcome__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.welcome__description {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.welcome__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.welcome__features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

/* Feature Cards */
.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.5;
}

/* Dashboard */
.dashboard__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.dashboard__header h2 {
    font-size: 2rem;
    color: var(--gray-800);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.event-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
}

.event-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.event-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.event-card__title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 0;
}

.event-card__type {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.event-card__info {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

.event-card__info div {
    margin-bottom: 0.5rem;
}

.event-card__countdown {
    background: linear-gradient(135deg, var(--primary-yellow), #FF9800);
    color: var(--white);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 600;
}

/* Section Headers */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    color: var(--gray-800);
}

/* Forms */
.form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form__group input,
.form__group select,
.form__group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form__group textarea {
    resize: vertical;
    min-height: 100px;
}

.form__actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Event Details */
.event-details__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.event-details__header h2 {
    font-size: 2.2rem;
    color: var(--gray-800);
    margin-bottom: 0.5rem;
}

.event-info {
    color: var(--gray-600);
    font-size: 1.1rem;
}

.event-info span {
    display: block;
    margin-bottom: 0.25rem;
}

.countdown {
    background: linear-gradient(135deg, var(--primary-yellow), #FF9800);
    color: var(--white);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
}

.event-actions {
    display: flex;
    gap: 1rem;
}

/* Tabs */
.tabs {
    display: flex;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    overflow-x: auto;
}

.tab-button {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    background: transparent;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    min-width: 120px;
}

.tab-button:first-child {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.tab-button:last-child {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.tab-button.active,
.tab-button:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

.tab-content {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    min-height: 400px;
}

.tab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.tab-header h3 {
    font-size: 1.5rem;
    color: var(--gray-800);
}

/* Tasks */
.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.task-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-blue);
    transition: var(--transition);
}

.task-item.completed {
    opacity: 0.7;
    border-left-color: var(--primary-green);
}

.task-item.completed .task-name {
    text-decoration: line-through;
}

.task-checkbox {
    margin-right: 1rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.task-content {
    flex: 1;
}

.task-name {
    font-weight: 500;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.task-meta {
    font-size: 0.85rem;
    color: var(--gray-600);
}

.task-priority {
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-left: 0.5rem;
}

.task-priority--alta {
    background-color: var(--primary-red);
    color: var(--white);
}

.task-priority--media {
    background-color: var(--primary-yellow);
    color: var(--gray-800);
}

.task-priority--baixa {
    background-color: var(--primary-green);
    color: var(--white);
}

.task-actions {
    display: flex;
    gap: 0.5rem;
}

.btn--small {
    padding: 0.5rem;
    font-size: 0.8rem;
    min-height: auto;
}

/* Budget */
.budget-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.budget-card {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    color: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.budget-card h4 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.budget-amount {
    font-size: 1.8rem;
    font-weight: 700;
}

.expenses-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.expense-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-green);
}

.expense-info h4 {
    margin: 0 0 0.25rem 0;
    color: var(--gray-800);
}

.expense-category {
    font-size: 0.85rem;
    color: var(--gray-600);
}

.expense-amount {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-green);
}

/* Guests */
.guests-summary {
    margin-bottom: 2rem;
}

.guest-stats {
    display: flex;
    gap: 2rem;
    justify-content: center;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
}

.guest-stats span {
    font-size: 1rem;
    color: var(--gray-700);
}

.guests-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.guest-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--gray-400);
}

.guest-item.confirmed {
    border-left-color: var(--primary-green);
}

.guest-item.declined {
    border-left-color: var(--primary-red);
}

.guest-info h4 {
    margin: 0 0 0.25rem 0;
    color: var(--gray-800);
}

.guest-contact {
    font-size: 0.85rem;
    color: var(--gray-600);
}

.guest-status {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.guest-status.pending {
    background-color: var(--primary-yellow);
    color: var(--gray-800);
}

.guest-status.confirmed {
    background-color: var(--primary-green);
    color: var(--white);
}

.guest-status.declined {
    background-color: var(--primary-red);
    color: var(--white);
}

/* Inspiration */
.inspiration-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.inspiration-category {
    background: var(--gray-100);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.inspiration-category h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

.suggestions-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.suggestion-item {
    background: var(--white);
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    cursor: pointer;
}

.suggestion-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.suggestion-item h5 {
    margin: 0 0 0.5rem 0;
    color: var(--gray-800);
    font-size: 1rem;
}

.suggestion-item p {
    margin: 0;
    color: var(--gray-600);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Timeline */
.timeline-list {
    margin-bottom: 2rem;
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    position: relative;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 23px;
    top: 50px;
    width: 2px;
    height: calc(100% + 1rem);
    background-color: var(--gray-300);
}

.timeline-time {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.9rem;
    min-width: 80px;
    text-align: center;
    margin-right: 1rem;
    flex-shrink: 0;
}

.timeline-content {
    flex: 1;
    background: var(--gray-100);
    padding: 1rem;
    border-radius: var(--border-radius);
}

.timeline-content h4 {
    margin: 0 0 0.5rem 0;
    color: var(--gray-800);
}

.timeline-content p {
    margin: 0;
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* Invites */
.invite-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.invite-method {
    background: var(--gray-100);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.invite-method h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

.invite-method p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.invite-link-input {
    width: 100%;
    margin-top: 1rem;
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    background-color: var(--gray-100);
}

/* Notes */
.notes-container textarea {
    width: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.6;
    resize: vertical;
    margin-bottom: 1rem;
}

.notes-container textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.modal__header h3 {
    margin: 0;
    color: var(--gray-800);
}

.modal__close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal__close:hover {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.modal__content {
    padding: 2rem;
}

.modal__actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Footer */
.footer {
    background-color: var(--gray-800);
    color: var(--white);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .header__content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .header__nav {
        width: 100%;
        justify-content: center;
    }

    .welcome__title {
        font-size: 2rem;
    }

    .welcome__description {
        font-size: 1.1rem;
    }

    .welcome__actions {
        flex-direction: column;
        align-items: center;
    }

    .welcome__features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .dashboard__header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .event-details__header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .event-actions {
        justify-content: center;
        width: 100%;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-button {
        border-radius: 0;
        min-width: auto;
    }

    .tab-button:first-child {
        border-radius: var(--border-radius) var(--border-radius) 0 0;
    }

    .tab-button:last-child {
        border-radius: 0 0 var(--border-radius) var(--border-radius);
    }

    .budget-summary {
        grid-template-columns: 1fr;
    }

    .guest-stats {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

    .inspiration-categories {
        grid-template-columns: 1fr;
    }

    .invite-options {
        grid-template-columns: 1fr;
    }

    .form__actions {
        flex-direction: column;
    }

    .modal__actions {
        flex-direction: column;
    }

    .modal {
        margin: 1rem;
        max-width: none;
        width: calc(100% - 2rem);
    }

    .section-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .task-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .task-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .expense-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .guest-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .timeline-item {
        flex-direction: column;
        gap: 0.5rem;
    }

    .timeline-item:not(:last-child)::after {
        display: none;
    }

    .timeline-time {
        margin-right: 0;
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .welcome__title {
        font-size: 1.8rem;
    }

    .btn--large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .feature-card__icon {
        font-size: 2.5rem;
    }

    .tab-content {
        padding: 1.5rem;
    }

    .modal__content {
        padding: 1.5rem;
    }

    .form {
        padding: 1.5rem;
    }
}

/* Animation Classes */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    font-weight: 500;
}

.message--success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message--error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message--warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .btn,
    .modal-overlay {
        display: none !important;
    }

    .main {
        padding: 0;
    }

    .tab-content {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }

    body {
        font-size: 12pt;
        line-height: 1.4;
    }

    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
    }

    .task-item,
    .expense-item,
    .guest-item {
        page-break-inside: avoid;
    }
}