/* ========================================
   ANIMATIONS - Transitions & Interactions
   ======================================== */

/* ===== FADE ANIMATIONS ===== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ===== SCALE ANIMATIONS ===== */

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ===== SLIDE ANIMATIONS ===== */

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* ===== PULSE ANIMATIONS ===== */

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* ===== PAGE TRANSITIONS ===== */

.page-enter {
    animation: fadeInUp 0.3s ease-out;
}

.page-exit {
    animation: fadeOut 0.2s ease-out;
}

/* ===== COMPONENT ANIMATIONS ===== */

/* Card Hover Animation */
.card {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s ease,
                background-color 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* Button Animations */
.btn {
    transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

/* Form Input Animations */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
    transition: all 0.2s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    transform: translateY(-2px);
}

/* Label Animation */
label {
    transition: color 0.2s ease;
}

input:focus + label,
textarea:focus + label,
select:focus + label {
    color: var(--sage-green);
}

/* ===== LOADING ANIMATIONS ===== */

.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--light-gray);
    border-top-color: var(--sage-green);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-small {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

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

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* ===== TOAST NOTIFICATIONS ===== */

.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    z-index: 1000;
    animation: slideInRight 0.3s ease-out;
}

.toast.exit {
    animation: slideOutRight 0.3s ease-out forwards;
}

@keyframes slideOutRight {
    to {
        opacity: 0;
        transform: translateX(400px);
    }
}

.toast-success {
    border-left: 4px solid var(--sage-green);
    color: var(--charcoal);
}

.toast-success .toast-icon {
    color: var(--sage-green);
}

.toast-danger {
    border-left: 4px solid var(--terracotta);
    color: var(--charcoal);
}

.toast-danger .toast-icon {
    color: var(--terracotta);
}

.toast-icon {
    font-size: 1.5rem;
    margin-right: var(--spacing-sm);
}

/* ===== TRANSITIONS ===== */

/* Smooth transitions for common property changes */
.transition-all {
    transition: all 0.2s ease;
}

.transition-fast {
    transition: all 0.15s ease;
}

.transition-slow {
    transition: all 0.4s ease;
}

/* ===== HOVER EFFECTS ===== */

.hover-lift {
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-glow {
    transition: box-shadow 0.2s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(135, 168, 120, 0.3);
}

.hover-opacity {
    transition: opacity 0.2s ease;
}

.hover-opacity:hover {
    opacity: 0.8;
}

.hover-scale {
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hover-scale:hover {
    transform: scale(1.05);
}

/* ===== PROGRESS ANIMATIONS ===== */

@keyframes progressFill {
    from {
        width: 0;
    }
}

.progress-bar {
    height: 4px;
    background-color: var(--light-gray);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--sage-green) 0%, var(--honey-gold) 100%);
    transition: width 0.3s ease;
}

/* ===== CHECKMARK ANIMATION ===== */

@keyframes checkmark {
    0% {
        stroke-dashoffset: 50;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

.checkmark {
    animation: checkmark 0.5s ease-out;
}

/* ===== CONFETTI ANIMATION ===== */

@keyframes confetti-fall {
    to {
        transform: translateY(500px) rotateX(360deg) rotateZ(360deg);
        opacity: 0;
    }
}

.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    pointer-events: none;
    animation: confetti-fall 3s ease-out forwards;
}

/* ===== ACCESSIBILITY ===== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== FOCUS STATES ===== */

*:focus-visible {
    outline: 2px solid var(--sage-green);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--sage-green);
    outline-offset: 2px;
}

/* ===== SELECTION STYLING ===== */

::selection {
    background-color: var(--sage-green);
    color: var(--white);
}

::-moz-selection {
    background-color: var(--sage-green);
    color: var(--white);
}