/* File: style.css */

:root {
    /* Light Mode Variables */
    --bg-color: #f3f4f6;
    --card-bg-color: #fff;
    --text-color: #1f2937;
    --muted-text-color: #6b7280;
    --border-color: #e5e7eb;
    --primary-color: #3b82f6;
    --primary-hover-color: #2563eb;
    --accent-color: #22c55e;
    --accent-hover-color: #16a34a;
    --danger-color: #dc2626;
    --logo-color-nutri: #1f2937;
    --logo-color-vista: #4b5563;
}

body[data-theme="dark"] {
    /* Dark Mode Variables */
    --bg-color: #1f2937;
    --card-bg-color: #374151;
    --text-color: #f3f4f6;
    --muted-text-color: #d1d5db;
    --border-color: #4b5563;
    --primary-color: #60a5fa;
    --primary-hover-color: #3b82f6;
    --accent-color: #4ade80;
    --accent-hover-color: #22c55e;
    --danger-color: #f87171;
    --logo-color-nutri: #d1d5db;
    --logo-color-vista: #9ca3af;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

.main-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.custom-card {
    background-color: var(--card-bg-color);
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    color: var(--text-color);
}

/* Updated Nav Bar Styles */
.nav-main {
    padding: 0.5rem 1rem;
}

.nav-link {
    color: var(--muted-text-color);
    transition: all 0.3s ease;
}

.nav-link.active, .nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-link.active {
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 1.5px;
    transition: width 0.3s ease;
}

.btn-sm-custom {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.chat-container {
    height: 60vh;
    max-height: 60vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.chat-message.user {
    align-self: flex-end;
    background-color: var(--primary-color);
    color: white;
    border-bottom-right-radius: 0;
}

.chat-message.bot {
    align-self: flex-start;
    background-color: var(--border-color);
    color: var(--text-color);
    border-bottom-left-radius: 0;
}

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

.card-hover:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.page-section {
    position: absolute;
    width: 95%;
    top: 15rem;
    left: 2.5%;
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: translateY(20px) scale(0.98);
}

.page-section.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    position: relative;
    top: auto;
    left: auto;
}

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

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

/* Hero section animations */
.hero-section {
    position: relative;
    overflow: hidden;
    padding: 5rem;
    border-radius: 1rem;
    min-height: 500px;
}

.hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 1rem;
    z-index: 0;
    filter: brightness(0.6);
}

.animated-bg-image-1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1540420773420-3366772f4993?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    animation: pan-zoom-1 20s infinite alternate ease-in-out;
}

.animated-bg-image-2 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1512621776951-a87d6928e1d7?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    animation: pan-zoom-2 20s infinite alternate ease-in-out;
    opacity: 0;
}

.animated-bg-image-3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1550974052-5264b38d3886?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    animation: pan-zoom-3 20s infinite alternate ease-in-out;
    opacity: 0;
}

@keyframes pan-zoom-1 {
    0% { transform: scale(1.1); transform-origin: center; opacity: 1; }
    33% { transform: scale(1.2); transform-origin: left; opacity: 0; }
    66% { transform: scale(1.2); transform-origin: right; opacity: 0; }
    100% { transform: scale(1.1); transform-origin: center; opacity: 1; }
}

@keyframes pan-zoom-2 {
    0% { transform: scale(1.1); transform-origin: center; opacity: 0; }
    33% { transform: scale(1.2); transform-origin: left; opacity: 1; }
    66% { transform: scale(1.2); transform-origin: right; opacity: 0; }
    100% { transform: scale(1.1); transform-origin: center; opacity: 0; }
}

@keyframes pan-zoom-3 {
    0% { transform: scale(1.1); transform-origin: center; opacity: 0; }
    33% { transform: scale(1.2); transform-origin: left; opacity: 0; }
    66% { transform: scale(1.2); transform-origin: right; opacity: 1; }
    100% { transform: scale(1.1); transform-origin: center; opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 1;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 1rem;
    padding: 2rem;
}

/* Dark Mode Toggle Switch */
.theme-switch-wrapper {
    position: absolute;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
}

.theme-switch {
    display: inline-block;
    height: 34px;
    position: relative;
    width: 60px;
}

.theme-switch input {
    display:none;
}

.slider {
    background-color: var(--muted-text-color);
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
}

.slider:before {
    background-color: #fff;
    bottom: 4px;
    content: "";
    height: 26px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 26px;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

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

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}