:root {
    /* Brand Colors - Ghanaian Theme */
    --primary: #198754;
    /* Green */
    --primary-dark: #126b42;
    --primary-light: #d1e7dd;
    --secondary: #F2A900;
    /* Gold */
    --secondary-dark: #d69400;
    --accent: #ce1126;
    /* Red */

    /* Backgrounds */
    --bg-main: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-card-solid: #ffffff;
    --bg-modal: rgba(255, 255, 255, 0.95);

    /* Text */
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --text-on-primary: #ffffff;

    /* UI Elements */
    --border: #e2e8f0;
    --border-light: rgba(226, 232, 240, 0.5);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ce1126;
    --info: #3b82f6;

    /* Layout */
    --header-height: 64px;
    --nav-height: 72px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
}

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

.icon svg {
    width: 1em;
    height: 1em;
    vertical-align: middle;
    fill: currentColor;
}

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

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

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

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

.color-secondary {
    color: var(--secondary);
}

.color-danger {
    color: var(--danger);
}

.color-success {
    color: var(--success);
}

.color-muted {
    color: var(--text-muted);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}

/* Glassmorphism Classes */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
}

.glass-header {
    background: rgba(25, 135, 84, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
}

/* Layout */
.main-app {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    padding-bottom: calc(var(--nav-height) + var(--spacing-md));
    padding-top: calc(var(--header-height) + var(--spacing-md));
    -webkit-overflow-scrolling: touch;
}

/* Basic Grid/Flex */
.flex {
    display: flex;
}

.flex-col {
    display: flex;
    flex-direction: column;
}

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

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

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

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: var(--radius-sm);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(25, 135, 84, 0.3);
}

.btn-primary:active {
    background: var(--primary-dark);
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--bg-card-solid);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:active {
    background: var(--bg-main);
    transform: scale(0.98);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-floating {
    position: fixed;
    bottom: calc(var(--nav-height) + var(--spacing-md));
    right: var(--spacing-md);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--danger);
    color: white;
    box-shadow: 0 4px 15px rgba(206, 17, 38, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    border: none;
    z-index: 50;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-floating:active {
    transform: scale(0.9);
}

/* Form Inputs */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input,
.form-select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 16px;
    color: var(--text-main);
    font-family: inherit;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
    appearance: none;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(25, 135, 84, 0.1);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    z-index: 100;
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow);
}

.header-title {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.header-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    transition: background 0.2s;
}

.header-btn:active {
    background: rgba(255, 255, 255, 0.25);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-bottom: env(safe-area-inset-bottom);
    z-index: 100;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.05);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    width: 20%;
    height: 100%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-item i {
    font-size: 24px;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-item.active {
    color: var(--primary);
}

.nav-item.active i {
    transform: translateY(-2px);
}

/* Side Menu */
.side-menu {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.side-menu:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.side-menu-content {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    width: 280px;
    background: var(--bg-card-solid);
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 15px rgba(0, 0, 0, 0.1);
}

.side-menu:not(.hidden) .side-menu-content {
    transform: translateX(0);
}

.side-menu-header {
    background: var(--primary);
    color: white;
    padding: var(--spacing-lg) var(--spacing-md);
    padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top));
}

.menu-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-avatar {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.user-details h3 {
    font-size: 16px;
    margin: 0;
}

.user-details p {
    font-size: 12px;
    opacity: 0.8;
    margin: 0;
}

.side-menu-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) 0;
}

.side-menu-nav button {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
    padding: 16px var(--spacing-lg);
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 16px;
    font-weight: 500;
    text-align: left;
    transition: background 0.2s;
}

.side-menu-nav button:active {
    background: var(--bg-main);
}

.side-menu-nav button i {
    font-size: 22px;
    color: var(--text-muted);
}

.divider {
    height: 1px;
    background: var(--border);
    margin: var(--spacing-sm) 0;
}

/* Modal */
.modal-container {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-container:not(.hidden) .modal-backdrop {
    opacity: 1;
}

.modal-content {
    position: relative;
    width: 100%;
    max-height: 90vh;
    background: var(--bg-card-solid);
    border-radius: 24px 24px 0 0;
    padding: var(--spacing-lg) var(--spacing-md);
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.modal-container:not(.hidden) .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.modal-body {
    overflow-y: auto;
    padding-bottom: var(--spacing-md);
}

.modal-handle {
    width: 40px;
    height: 4px;
    background: #cbd5e1;
    border-radius: 2px;
    margin: 0 auto 16px;
}

/* Splash Screen */
.splash-screen {
    position: fixed;
    inset: 0;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}

.splash-content {
    text-align: center;
    animation: bounceIn 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.splash-icon {
    font-size: 72px;
    margin-bottom: 16px;
    color: var(--secondary);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.splash-title {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 8px;
}

.splash-subtitle {
    font-size: 16px;
    opacity: 0.9;
    font-weight: 500;
}

.splash-loader {
    width: 40px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    margin: 32px auto 0;
    overflow: hidden;
    position: relative;
}

.splash-loader::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 40%;
    background: var(--secondary);
    border-radius: 2px;
    animation: loading 1.5s infinite ease-in-out;
}

/* Auth Screen */
.auth-screen {
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 100vh;
    display: none;
    /* hidden by default until implemented */
    flex-direction: column;
    justify-content: center;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

/* Cards */
.card {
    background: var(--bg-card-solid);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* App-Specific UI Cards */
.summary-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 20px rgba(25, 135, 84, 0.2);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.summary-card::after {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.summary-amount {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -1px;
    margin: 8px 0;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.summary-currency {
    font-size: 18px;
    font-weight: 500;
    opacity: 0.9;
}

/* Animations */
@keyframes bounceIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes loading {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(250%);
    }
}

@keyframes slideUpFade {
    0% {
        transform: translateY(10px);
        opacity: 0;
    }

    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.animate-slide-up {
    animation: slideUpFade 0.4s ease forwards;
}