@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #FEB449;
    --primary-hover: #e5a13f;
    --bg-color: #f4f7f6;
    --white: #ffffff;
    --text-main: #333333;
    --text-muted: #777777;
    --border-color: #e1e4e8;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow-soft: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header & Nav */
header {
    background: var(--white);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-main);
}

.logo-container img {
    height: 40px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-soft);
    width: 100%;
    max-width: 500px;
    transition: transform 0.3s ease;
}

.dashboard-card {
    max-width: 800px;
    align-self: flex-start;
    margin-top: 2rem;
}

/* Typography */
h1, h2, h3 {
    color: var(--text-main);
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.8rem;
    font-weight: 600;
}

p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
}

input, select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
    outline: none;
}

input:focus, select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(254, 180, 73, 0.2);
}

.input-group {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--white);
    transition: all 0.3s ease;
    overflow: hidden;
}

.input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(254, 180, 73, 0.2);
}

.input-group-addon {
    padding: 0.8rem 1rem;
    background: #f8f9fa;
    border-right: 1px solid var(--border-color);
    color: var(--text-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
}

.input-group input {
    border: none !important;
    box-shadow: none !important;
    border-radius: 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    width: 100%;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(254, 180, 73, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(254, 180, 73, 0.4);
}

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

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

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    width: auto;
}

/* Dynamic Field Builder */
.fields-container {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.field-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    background: var(--white);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.field-row .form-group {
    margin-bottom: 0;
    flex: 1;
}

.remove-btn {
    background: none;
    border: none;
    color: var(--error-color);
    cursor: pointer;
    padding: 0.8rem;
    border-radius: 8px;
    transition: background 0.3s;
}

.remove-btn:hover {
    background: rgba(231, 76, 60, 0.1);
}

/* Utility */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.hidden { display: none !important; }

/* API Key Display */
.api-key-display {
    background: #f8f9fa;
    border: 1px dashed var(--primary-color);
    padding: 1rem;
    border-radius: 8px;
    font-family: monospace;
    word-break: break-all;
    font-size: 1.1rem;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.api-endpoint {
    background: #2d3436;
    color: #00b894;
    padding: 1rem;
    border-radius: 8px;
    font-family: monospace;
    font-size: 0.9rem;
    margin-top: 1rem;
    overflow-x: auto;
}

/* Toast Notification */
#toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--text-main);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
    pointer-events: none;
}

#toast.show {
    opacity: 1;
    transform: translateY(0);
}

#toast.error {
    background: var(--error-color);
}

#toast.success {
    background: var(--success-color);
}

/* Hero Section */
.hero-section {
    flex: 1;
    background: url('../images/iot_background.png') center/cover no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Dark overlay for better text readability */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 2rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    text-shadow: 0 4px 15px rgba(0,0,0,0.5);
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out forwards, pulseGlow 3s infinite alternate;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
    from { text-shadow: 0 0 10px rgba(254, 180, 73, 0.3); }
    to { text-shadow: 0 0 25px rgba(254, 180, 73, 0.8), 0 0 40px rgba(254, 180, 73, 0.5); }
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    margin: 0; /* Override any existing margins on the card */
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.3s;
    background: none;
    border: none;
}
.close-modal:hover { color: var(--text-main); }

/* Footer */
footer {
    background: var(--white);
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}