/* HCLedger Styles */

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

:root {
    /* Color Palette */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary-color: #64748b;
    --success-color: #059669;
    --success-light: #d1fae5;
    --error-color: #dc2626;
    --error-light: #fee2e2;
    --warning-color: #d97706;
    --warning-light: #fef3c7;
    --info-color: #0891b2;
    --info-light: #cffafe;

    /* Neutral Colors */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;

    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Layout */
    --container-max-width: 1200px;
    --header-height: 4rem;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-4);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: white;
    text-decoration: none;
}

.btn-outline {
    background-color: transparent;
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
    color: var(--gray-800);
    text-decoration: none;
}

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

.btn-success:hover:not(:disabled) {
    background-color: #047857;
    border-color: #047857;
    color: white;
    text-decoration: none;
}

.btn-danger {
    background-color: var(--error-color);
    color: white;
    border-color: var(--error-color);
}

.btn-danger:hover:not(:disabled) {
    background-color: #b91c1c;
    border-color: #b91c1c;
    color: white;
    text-decoration: none;
}

.btn-text {
    background-color: transparent;
    color: var(--primary-color);
    border: none;
    padding: var(--spacing-1) var(--spacing-2);
}

.btn-text:hover:not(:disabled) {
    color: var(--primary-hover);
    background-color: var(--primary-light);
    text-decoration: none;
}

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
}

.btn-full {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-4);
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    color: var(--gray-700);
}

input, select, textarea {
    width: 100%;
    padding: var(--spacing-3);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

.form-actions {
    margin-top: var(--spacing-6);
}

.form-footer {
    margin-top: var(--spacing-4);
    text-align: center;
}

/* Cards */
.card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: between;
}

.card-header h3 {
    margin: 0;
    flex: 1;
}

.card-content {
    padding: var(--spacing-6);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

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

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-4);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Landing Page */
.landing-header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.landing-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-4);
    padding-bottom: var(--spacing-4);
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.landing-nav {
    display: flex;
    gap: var(--spacing-6);
}

.nav-link {
    color: var(--gray-600);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.hero {
    padding: var(--spacing-20) 0;
    background: linear-gradient(135deg, var(--primary-light) 0%, white 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-6);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-8);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-4);
}

@media (max-width: 768px) {
    .hero-actions {
        justify-content: center;
    }
}

.hero-graphic {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 300px;
    position: relative;
}

.graphic-element {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--border-radius-xl);
    position: absolute;
    animation: float 3s ease-in-out infinite;
}

.graphic-element:nth-child(1) {
    animation-delay: 0s;
    top: 20px;
    left: 20px;
}

.graphic-element:nth-child(2) {
    animation-delay: 1s;
    top: 80px;
    right: 40px;
}

.graphic-element:nth-child(3) {
    animation-delay: 2s;
    bottom: 40px;
    left: 60px;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.section {
    padding: var(--spacing-20) 0;
}

.section-alt {
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-6);
}

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-4);
}

.feature-card h4 {
    margin-bottom: var(--spacing-3);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-6);
    padding: var(--spacing-6);
    background-color: var(--gray-50);
    border-radius: var(--border-radius-lg);
}

.faq-question {
    margin-bottom: var(--spacing-3);
    color: var(--gray-900);
}

.faq-answer {
    color: var(--gray-600);
    margin: 0;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.landing-footer {
    background-color: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-8) 0;
    text-align: center;
}

/* Modals */
.modal {
    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: var(--spacing-4);
}

.modal-content {
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    color: var(--gray-400);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--gray-600);
}

.modal-body {
    padding: var(--spacing-6);
}

.modal-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-3);
    justify-content: flex-end;
}

.login-form {
    padding: var(--spacing-6);
}

.error-message {
    background-color: var(--error-light);
    color: var(--error-color);
    padding: var(--spacing-3);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-4);
    font-size: var(--font-size-sm);
}

/* Dashboard */
.dashboard-header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.dashboard-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-4);
    padding-bottom: var(--spacing-4);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

.user-greeting {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.dashboard-nav {
    display: flex;
    gap: var(--spacing-2);
}

.nav-btn {
    padding: var(--spacing-2) var(--spacing-4);
    background: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    background-color: var(--gray-100);
    color: var(--gray-800);
}

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

.dashboard-main {
    padding: var(--spacing-8) 0;
    min-height: calc(100vh - var(--header-height));
}

.view-title {
    margin-bottom: var(--spacing-8);
}

/* Dashboard Grids */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-6);
}

.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-6);
}

.safeguarder-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

/* Balance Card */
.balance-card .card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border-bottom: none;
}

.balance-amount {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-top: var(--spacing-2);
}

.balance-amount.positive {
    color: var(--success-color);
}

.balance-amount.negative {
    color: var(--error-color);
}

.balance-card .balance-amount {
    color: white;
}

.balance-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-4);
}

.balance-label {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

/* Transaction Lists */
.transactions-list {
    max-height: 400px;
    overflow-y: auto;
}

.transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.transaction-item:last-child {
    border-bottom: none;
}

.transaction-info {
    flex: 1;
}

.transaction-description {
    font-weight: 500;
    margin-bottom: var(--spacing-1);
}

.transaction-date {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.transaction-amount {
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.transaction-amount.credit {
    color: var(--success-color);
}

.transaction-amount.debit {
    color: var(--error-color);
}

/* Members List */
.members-list {
    max-height: 400px;
    overflow-y: auto;
}

.member-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.member-item:last-child {
    border-bottom: none;
}

.member-name {
    font-weight: 500;
    margin-bottom: var(--spacing-1);
}

.member-role {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.member-status {
    font-size: var(--font-size-sm);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--border-radius-sm);
    background-color: var(--gray-100);
    color: var(--gray-600);
}

.member-status.current-user {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

/* Accounts List */
.accounts-list {
    max-height: 400px;
    overflow-y: auto;
}

.account-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.account-item:last-child {
    border-bottom: none;
}

.account-name {
    font-weight: 500;
    margin-bottom: var(--spacing-1);
}

.account-type {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.account-balance {
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.account-balance.positive {
    color: var(--success-color);
}

.account-balance.negative {
    color: var(--error-color);
}

/* Proposals */
.proposals-list {
    max-height: 500px;
    overflow-y: auto;
}

.proposal-item {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-4);
}

.proposal-item:last-child {
    border-bottom: none;
}

.proposal-info {
    flex: 1;
}

.proposal-description {
    font-weight: 500;
    margin-bottom: var(--spacing-2);
}

.proposal-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    margin-bottom: var(--spacing-2);
}

.proposal-details span {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.proposal-date {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.proposal-actions {
    display: flex;
    gap: var(--spacing-2);
    flex-shrink: 0;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-1) var(--spacing-2);
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius-xl);
    font-size: var(--font-size-xs);
    font-weight: 600;
    min-width: 20px;
    height: 20px;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-4);
    left: var(--spacing-4);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.toast {
    display: flex;
    align-items: center;
    padding: var(--spacing-4);
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 500px;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    border-left: 4px solid var(--info-color);
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-left-color: var(--success-color);
}

.toast-error {
    border-left-color: var(--error-color);
}

.toast-warning {
    border-left-color: var(--warning-color);
}

.toast-info {
    border-left-color: var(--info-color);
}

.toast-icon {
    margin-right: var(--spacing-3);
    font-weight: bold;
}

.toast-message {
    flex: 1;
    font-size: var(--font-size-sm);
}

.toast-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    font-size: var(--font-size-lg);
    padding: 0;
    margin-left: var(--spacing-3);
}

.toast-close:hover {
    color: var(--gray-600);
}

/* Loading States */
.loading-state {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-8);
    color: var(--gray-500);
}

.loading-state .loading-spinner {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-3);
    margin-bottom: 0;
}

.loading-message {
    font-size: var(--font-size-sm);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: var(--spacing-8);
    color: var(--gray-500);
}

.empty-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-4);
}

.empty-message {
    font-size: var(--font-size-sm);
}

/* Error States */
.error-state {
    text-align: center;
    padding: var(--spacing-8);
    color: var(--error-color);
}

.error-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-4);
}

.error-message {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius);
    z-index: 10000;
}

.skip-link:focus {
    top: 6px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-4);
    }

    .dashboard-header .container {
        flex-direction: column;
        gap: var(--spacing-4);
        align-items: stretch;
    }

    .header-left {
        justify-content: space-between;
    }

    .header-right {
        justify-content: space-between;
    }

    .dashboard-nav {
        flex: 1;
    }

    .nav-btn {
        flex: 1;
        text-align: center;
    }

    .dashboard-grid,
    .admin-grid {
        grid-template-columns: 1fr;
    }

    .proposal-item {
        flex-direction: column;
        align-items: stretch;
    }

    .proposal-actions {
        justify-content: flex-end;
        margin-top: var(--spacing-4);
    }

    .toast-container {
        left: var(--spacing-4);
        right: var(--spacing-4);
    }

    .toast {
        min-width: auto;
    }

    .modal {
        padding: var(--spacing-2);
    }

    .hero {
        padding: var(--spacing-12) 0;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section {
        padding: var(--spacing-12) 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .landing-header .container {
        flex-direction: column;
        gap: var(--spacing-4);
    }

    .landing-nav {
        justify-content: center;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn-full {
        width: 100%;
    }
}

/* Print Styles */
@media print {
    .loading-screen,
    .modal,
    .toast-container,
    .dashboard-header,
    .btn {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}